Fits 1994-1997 Ford F-250 and F-350 models equipped with the 7.3L PowerStroke diesel engine.

Protect your diesel engine from the destructive effects of torsional vibration with the Fluidampr 720221 viscous damper. Unlike standard rubber-based harmonic balancers, Fluidampr utilizes a silicone-filled viscous design to provide consistent vibration control across the entire RPM range. This constant protection reduces wear on critical internal engine components, stabilizes timing, and helps prevent crankshaft failure—essential for high-performance builds and heavy-duty towing applications.

Built to meet rigorous competition standards, this damper is SFI 18.1 certified for safety. Each unit is precision CNC machined from high-grade steel and features a corrosion-resistant black zinc finish with laser-engraved timing marks for accurate adjustment and long-term durability.

• Manufacturer Part Number: 720221
• Certification: SFI 18.1 spec
• Material: CNC machined high-grade steel
• Finish: Black zinc plating
• Design: Externally balanced viscous damper
• Maintenance-free internal silicone fluid
• Engraved timing marks for precise indexing
• Made in the USA

Fits 1999-2003 Ford F-350 Super Duty (7.3L).

Protect your PowerStroke engine with the Fluidampr 720211, a heavy-duty viscous damper engineered to control harmful torsional vibration across the entire RPM range. Unlike standard elastomer dampers that can fail or harden over time, Fluidampr utilizes a silicone-filled internal inertia ring to provide continuous damping protection. This viscous design reduces wear on main bearings and helps prevent crankshaft failure, particularly in high-torque or competition diesel applications.

Precision-engineered for the 7.3L Ford diesel engine, this externally balanced damper is CNC machined from high-grade steel and finished in a corrosion-resistant black zinc. The unit features laser-engraved timing marks for accurate adjustment and is fully maintenance-free, requiring no tuning or rebuilding throughout its service life.

• SFI 18.1 certified for competition use
• Superior viscous damping technology reduces engine wear
• CNC machined from high-grade steel for maximum durability
• Corrosion-resistant black zinc finish with engraved timing marks
• No maintenance or rebuilding required
• Proudly made in the USA
• Manufacturer Part Number: 720211

Fits select 2011-2024 Ford Mustang and F-150 models (5.0L Coyote).

Protect your high-performance engine with the Fluidampr 700232 performance damper. As modifications increase power output, the factory harmonic balancer may struggle to manage the resulting torsional vibrations. This viscous damper is engineered to provide superior protection across the entire RPM range, reducing the risk of crankshaft failure and minimizing wear on critical internal engine components.

Precision CNC-machined from high-grade steel, this damper features a corrosion-resistant black zinc finish and laser-engraved timing marks for accurate adjustment. Unlike standard rubber-based dampers, the viscous silicone fluid inside does not degrade over time, ensuring maintenance-free performance for the life of your engine. Whether for a street build or a dedicated track car, this SFI 18.1 certified unit is a vital upgrade for long-term durability.

• Specifically designed for 2011-2024 Ford 5.0L Coyote engines
• Viscous design provides continuous vibration control at all RPMs
• SFI 18.1 certified for competition use
• Precision CNC-machined high-grade steel components
• Corrosion-resistant black zinc finish with engraved timing marks
• Internally balanced assembly
• No maintenance or rebuilding required
• Manufacturer Part Number: 700232
• Made in the USA

Fits select 1994-2005 Audi A4, A6, S4, Allroad, and Cabriolet models (2.7L / 2.8L / 3.0L).

Protect your engine's bottom end with the Fluidampr performance damper (MPN 651211). Factory rubber balancers are tuned to a specific narrow frequency and can degrade over time, especially on modified engines. This viscous damper utilizes a free-rotating internal inertia ring suspended in high-viscosity silicone fluid to control harmful torsional vibrations across the entire RPM range. By stabilizing the crankshaft, you reduce the risk of crank failure, minimize wear on main bearings, and maintain more accurate ignition timing for consistent performance.

• SFI 18.1 certified for competition and high-performance use
• Internally balanced for Audi 2.7L Twin Turbo, 2.8L, and 3.0L V6 engines
• Precision CNC machined from high-grade steel for superior durability
• Corrosion-resistant black zinc finish with laser-engraved timing marks
• Maintenance-free design with no rubber to crack or O-rings to replace
• Proudly made in the USA

Fits 1995-1998 Nissan 200SX Base, SE, and SE-R (2.0L).

Protect your engine's bottom end with the Fluidampr performance damper. Unlike factory rubber-based balancers that can degrade or become tuned out by performance modifications, this viscous damper features a precision-machined steel housing filled with specialized silicone. This design provides superior control of harmful torsional vibrations across the entire RPM range, significantly reducing the risk of crankshaft failure and premature wear on main bearings and timing components.

This internally balanced unit is CNC machined from high-grade steel and finished in a corrosion-resistant black zinc. It features engraved timing marks for accurate tuning and requires no ongoing maintenance. Trusted by professional engine builders, this damper is essential for high-performance builds where engine harmonics can compromise durability.

• Certification: SFI 18.1 certified for competition use
• Construction: Precision CNC machined high-grade steel components
• Finish: Corrosion-resistant black zinc with engraved timing marks
• Technology: Viscous silicone design for broad RPM protection
• Balance: Internally balanced
• Origin: Made in the USA
• Part Number: 630931

Fits select 1990-2006 Mitsubishi Eclipse, Lancer Evolution, Galant VR-4, Eagle Talon, and Plymouth Laser (4G63/T).

Protect your engine from the destructive effects of torsional vibration with the Fluidampr performance damper. While factory elastomeric balancers are tuned to a specific frequency and can degrade over time, Fluidampr utilizes a viscous design with a precision-machined inertia ring floating in a thin film of silicone. This allows the damper to provide continuous protection across the entire RPM range, regardless of engine modifications. By controlling crankshaft twist, this damper reduces wear on critical engine components, minimizes the risk of crankshaft failure, and helps unleash lost torque and horsepower.

• SFI 18.1 certified for street and racing applications
• Precision CNC-machined from high-grade steel
• Corrosion-resistant black zinc finish with engraved timing marks
• Internally balanced design requires no maintenance or recalibration
• Engineered to reduce bearing wear and improve timing accuracy
• Made in the USA
• Manufacturer Part Number: 630701

Fits select 1991-2001 Honda and Acura models, including Civic Si, Integra GS-R, Integra Type R, and Prelude 2.0 Si (B-Series engines).

High-performance engine modifications can compromise a factory harmonic balancer's ability to manage torsional vibration. The Fluidampr 620601 performance damper provides superior protection across the entire RPM range by utilizing a viscous design. Unlike rubber-based dampers, this unit features a free-floating inertia ring in a bath of silicone to continuously dampen harmful vibrations, reducing the risk of crankshaft failure and premature wear on critical internal components. This specific model features a 35% underdrive alternator-only pulley to reduce parasitic drag and unleash lost horsepower and torque.

• SFI 18.1 certified for competition and track use.
• Precision CNC machined from high-grade steel for maximum durability.
• Corrosion-resistant black zinc finish with clear, engraved timing marks.
• Internally balanced and maintenance-free; no tuning or refills required.
• 35% underdrive alternator pulley configuration.
• Proudly made in the USA.
• Manufacturer Part Number: 620601

Fits 1994-1999 Nissan Skyline R33 (RB25DET Non-NEO).

Protect your engine's bottom end with the Fluidampr 610931 performance viscous damper. As engine modifications increase, the stock harmonic balancer can become inadequate at managing harmonic frequencies. This damper is engineered to control harmful torsional vibration across the entire RPM range, reducing the risk of crankshaft failure and premature wear on critical engine bearings and components. Unlike stock rubber-based balancers, Fluidampr’s viscous design provides continuous protection that doesn't degrade over time.

The unit is precision CNC machined from high-grade steel and finished in a corrosion-resistant black zinc coating. It features laser-engraved timing marks for accurate tuning and requires no ongoing maintenance or tuning. Trusted by professional engine builders, this damper ensures stable valvetrain timing and helps reclaim torque and horsepower lost to parasitic vibration.

• SFI 18.1 certified for competition use
• Internally balanced high-grade steel construction
• Corrosion-resistant black zinc finish with engraved timing marks
• Viscous silicone cooling medium provides protection at all RPM levels
• No maintenance or rebuilding required
• Proudly made in the USA
• Manufacturer Part Number: 610931

Fits Nissan engines including the RB20DET, RB25DET NEO (Phase-1), and BNR32 Skyline GT-R.

Protect your high-performance Nissan engine from damaging torsional vibrations with the Fluidampr 610921 performance damper. As modifications increase power output, stock harmonic balancers can become inadequate, leading to accelerated bearing wear and potential crankshaft failure. This viscous damper is engineered to control vibrations across the entire RPM range, ensuring superior durability and timing accuracy for tuned applications.

The 610921 is precision CNC machined from high-grade steel and features a corrosion-resistant black zinc finish with permanent engraved timing marks. Unlike standard elastomer-based dampers that degrade over time, the viscous design requires no maintenance or rebuilding, providing consistent protection for the life of your engine.

• Manufacturer Part Number: 610921
• Certification: SFI 18.1 spec
• Material: CNC machined high-grade steel
• Finish: Black zinc for superior corrosion resistance
• Balance: Internally balanced
• Features: Engraved timing marks for precise tuning
• Origin: Made in the USA

Fits 1995-2002 Nissan Skyline GT-R (BCNR33 and BNR34) equipped with the RB26DET Phase-2 engine.

Protect your engine's bottom end with the Fluidampr performance harmonic damper. As modifications increase, factory rubber dampers often fail to manage the increased torsional vibrations, leading to accelerated bearing wear and potential crankshaft failure. This viscous-style damper features a precision CNC-machined steel housing and internal inertia ring that rotates in a bath of silicone, providing superior vibration control across the entire RPM range.

Unlike traditional elastomeric dampers, this unit requires no maintenance or tuning and is designed to last the life of the engine. The corrosion-resistant black zinc finish includes laser-engraved timing marks for precise ignition setup and verification. Trusted by elite engine builders, this damper is essential for high-performance RB26 builds.

• Manufacturer Part Number: 610911
• Certification: SFI 18.1 spec
• Construction: High-grade steel with black zinc finish
• Balance: Internal
• Features: Laser-engraved timing marks
• Origin: Made in the USA

Fits the Nissan Skyline BNR32 GT-R equipped with the Phase-1 RB26DET engine.

Protect your high-performance engine from the destructive effects of torsional vibration. As you modify your RB26DET with heavier clutches, lightened flywheels, or increased boost, the factory harmonic balancer often loses its ability to protect the crankshaft. This Fluidampr performance damper features a superior viscous design that controls vibration across the entire RPM range, rather than being tuned to a narrow frequency like OEM elastomer balancers.

Precision CNC machined from high-grade steel, this internally balanced unit features a corrosion-resistant black zinc finish and engraved timing marks for accurate tuning. Because the viscous silicone fluid remains stable over time, this damper requires no maintenance or rebuilding, making it a reliable long-term solution for both street and track applications.

• MPN: 610901
• Certification: SFI 18.1 spec
• Material: High-grade CNC machined steel
• Finish: Black Zinc
• Design: Internally balanced viscous damper
• Compatibility: RB26DET Phase-1 (BNR32 GT-R)
• Origin: Made in the USA

Fits 2006-2014 Mazda MX-5 Miata models equipped with the 2.0L engine.

Protect your engine's bottom end with a Fluidampr performance damper. As you modify your MX-5 for more power, factory harmonic balancers can become inadequate at controlling increased torsional vibrations. Fluidampr uses a superior viscous design to provide consistent vibration control across the entire RPM range, unlike rubber-based OEM dampers that are tuned only for a narrow frequency. This results in reduced wear on main bearings and oil pumps, more stable valve timing, and a lower risk of crankshaft failure.

• Precision CNC machined from high-grade steel for maximum durability
• Corrosion-resistant black zinc finish with engraved timing marks
• Internally balanced design requires no additional maintenance
• SFI 18.1 certified for competition and track use
• Direct replacement for the factory unit
• Manufacturer Part Number: 601011
• Made in the USA

Fits select 2006-2013 Mazda 3, 6, and CX-7 models (2.3L / 2.5L).

Protect your engine's bottom end with the Fluidampr 601001 performance harmonic balancer. Unlike factory dampers that use cured rubber which can degrade over time, Fluidampr utilizes a viscous silicone fluid to provide superior vibration control across the entire RPM range. This steel, internally balanced damper reduces wear on critical main bearings and the crankshaft, helping to prevent catastrophic failure in high-performance applications. Finished in black zinc chromate for corrosion resistance, this unit is SFI 18.1 certified for racing use.

• Part Number: 601001
• Material: Steel
• Finish: Black Zinc Chromate
• Diameter: 6"
• Weight: 7 lbs
• SFI 18.1 certified
• Internally balanced
• Maintenance-free design with no tuning required
• Proudly Made in the USA

Fits select 1986-2001 Acura Integra, Honda Accord, Civic, Civic del Sol, CR-V, and Prelude (B-Series engines).

Protect your engine's bottom end with the Fluidampr performance damper. Performance modifications change the harmonic frequency of your engine, often exceeding the capabilities of the factory rubber balancer. This viscous-style damper uses a silicone fluid layer to control harmful torsional vibration across the entire RPM range, rather than being tuned to a single narrow frequency. By stabilizing the crankshaft, this damper reduces wear on main bearings and oil pump components while preventing catastrophic crankshaft failure.

Precision CNC-machined from high-grade steel, this unit features an internal balance and is finished in a corrosion-resistant black zinc. It includes pulleys for power steering, air conditioning, and the alternator to maintain factory accessory functionality. This unit is SFI 18.1 certified for competition use and requires no maintenance or rebuilding over its lifespan.

• Manufacturer Part Number: 590601
• SFI 18.1 certified for race use
• Viscous silicone vibration damping technology
• High-grade steel construction with black zinc finish
• Laser-engraved timing marks for precise tuning
• Internally balanced design
• Compatible with PS, AC, and Alternator belts
• Made in the USA

Fits 2009-2021 Nissan GT-R R35 models (VR38DETT).

The Fluidampr 570901 performance damper is a critical upgrade for high-performance Nissan GT-R builds. Unlike factory rubber-based dampers that are tuned to a specific, narrow frequency, the Fluidampr viscous design utilizes a free-floating inertia ring submerged in silicone fluid to control harmful torsional vibrations across the entire RPM range. This protection is essential as modifications increase power and change the engine's harmonic profile, which can lead to premature bearing wear and catastrophic crankshaft failure.

Precision CNC machined from high-grade steel, this internally balanced damper features a corrosion-resistant black zinc finish and engraved timing marks for accurate tuning. It is SFI 18.1 certified, making it legal for professional racing and ensuring it meets the highest safety standards for high-revving applications. Maintenance-free and made in the USA, it provides long-term protection for your VR38DETT's rotating assembly.

• Reduces wear on critical engine components and main bearings
• Protects against crankshaft failure by absorbing harmonic vibrations across all RPMs
• SFI 18.1 certified for competition use
• Maintenance-free design with no rubber parts to degrade or replace
• CNC machined steel construction with black zinc finish
• Proudly made in the USA
• Manufacturer Part Number: 570901

Vehicle Fitment

Fits select 1990-2010 Toyota and Lexus models equipped with V8 engines (1UZ-FE, 2UZ-FE, 3UZ-FE), including LS400, SC400, Land Cruiser, and Tundra.

Protect your engine's bottom end with the Fluidampr performance harmonic balancer. Standard elastomer dampers are tuned to a narrow frequency and can harden over time, especially in modified or high-RPM builds. The Fluidampr 570801 utilizes a superior viscous design, featuring a free-rotating inertia ring in a bath of silicone fluid to control harmful torsional vibrations across the entire RPM range. This reduces the risk of crankshaft failure and premature wear on main bearings and timing components.

Precision CNC machined from high-grade steel, this damper is internally balanced and features a corrosion-resistant black zinc finish with laser-engraved timing marks for accurate tuning. It requires no maintenance or rebuilding, making it a reliable choice for both street and track applications.

• Manufacturer Part Number: 570801
• Certification: SFI 18.1 spec
• Construction: High-grade steel with black zinc finish
• Balance: Internal
• Damping Type: Viscous (silicone-filled)
• Includes laser-engraved timing marks
• No maintenance or rebuilding required
• Made in the USA

Fits 2010-2015 Mitsubishi Lancer Evolution models including GSR, MR, SE, and Final Edition.

Protect your 4B11T engine from the destructive effects of torsional vibration. Performance modifications increase cylinder pressure and torque, which can quickly exceed the capacity of the factory rubber harmonic balancer. This Fluidampr performance damper features a superior viscous design that controls harmful vibration across the entire RPM range, reducing the risk of crankshaft failure and protecting critical internal components like main bearings and oil pumps.

Precision CNC machined from high-grade steel, this unit is finished in a corrosion-resistant black zinc coating and features laser-engraved timing marks for precise adjustment. Unlike traditional elastomer dampers that degrade over time, the viscous silicone fluid inside the Fluidampr remains stable and requires no maintenance or periodic rebuilding, providing reliable protection for the life of your build.

• Manufacturer Part Number: 570701
• Certification: SFI 18.1 spec for sanctioned racing
• Material: Precision CNC machined high-grade steel
• Finish: Corrosion-resistant black zinc
• Design: Internally balanced viscous damper
• Timing: Laser-engraved timing marks included
• Maintenance: Zero maintenance required
• Origin: Made in the USA

Fits select 2002-2025 Honda and Acura models equipped with K-series engines, including Civic, Accord, RSX, TSX, and RDX. This Fluidampr performance damper is a critical upgrade for any built or high-RPM engine where modifications can compromise the factory harmonic balancer.

Engineered to protect against harmful torsional vibrations, this viscous damper features a precision CNC-machined high-grade steel housing that contains a free-rotating inertia ring in a bath of silicone. Unlike rubber-based OE dampers that are tuned for a narrow frequency, the Fluidampr 570601 provides continuous protection across the entire RPM range, significantly reducing the risk of crankshaft failure and premature wear on main bearings and oil pumps.

• Manufacturer Part Number: 570601
• SFI 18.1 certified for competition use
• Construction: High-grade steel with corrosion-resistant black zinc finish
• Maintenance-free design with no tuning or rebuilding required
• Features laser-engraved timing marks for precise adjustment
• Internally balanced for K-series crankshaft configurations
• Proudly made in the USA

Fits select 2005-2026 Audi and Volkswagen models, including A3, A4, A5, A6, Q3, Q5, Q7, S3, TT, Beetle, CC, Eos, Golf R, Jetta, Passat, Tiguan, Arteon, and Atlas (2.0T).

Protect your engine's bottom end with the Fluidampr performance damper. While factory harmonic balancers use rubber O-rings that can crack or lose effectiveness as you increase power, Fluidampr utilizes a viscous design. This high-grade steel housing contains a free-rotating inertia ring suspended in specialized silicone fluid, providing superior torsional vibration control across the entire RPM range. This constant protection reduces wear on main bearings and oil pumps while significantly lowering the risk of crankshaft failure.

Precision CNC machined for internal balance, this unit features a corrosion-resistant black zinc finish and permanent engraved timing marks. As a viscous damper, it requires no tuning or maintenance over the life of the engine, making it a critical upgrade for both high-performance builds and daily drivers seeking maximum durability.

• Manufacturer Part Number: 551231
• SFI 18.1 certified for racing applications
• Precision CNC machined high-grade steel construction
• Corrosion-resistant black zinc finish
• Maintenance-free viscous damping technology
• Engraved timing marks for accurate setup
• Made in the USA

Fits select 1993-2013 Audi and Volkswagen models including A3, A4, A6, TT, Golf, Jetta, Passat, and Touareg. This Fluidampr performance damper is a critical upgrade for protecting your engine against harmful torsional vibrations that stock rubber-based balancers cannot fully manage, especially after performance modifications.

Unlike OEM dampers that are tuned to a specific narrow frequency, the Fluidampr 551221 features a viscous design with a free-rotating inertia ring suspended in silicone fluid. This allows the damper to provide continuous protection across the entire RPM range, reducing wear on main bearings and the crankshaft while helping to stabilize timing. Precision CNC-machined from high-grade steel, it features a corrosion-resistant black zinc finish and laser-engraved timing marks for accurate tuning.

• Manufacturer Part Number: 551221
• SFI 18.1 certified for professional racing environments
• Internally balanced design with no maintenance or tuning required
• Protects critical engine components across a broad RPM range
• High-grade steel construction with a durable black zinc finish
• Made in the USA

Fits select 2005-2009 Audi A4, TT Quattro and Volkswagen Jetta, Passat, Eos, Golf, and GTI (2.0T).

The Fluidampr 551211 performance damper is a critical upgrade for high-performance 2.0T FSI engines. Unlike stock rubber balancers that can degrade or fail under increased load, this viscous damper provides superior control over torsional vibrations across the entire RPM range. By reducing harmonic stress on the crankshaft and internal components, it helps prevent premature wear and catastrophic failure while stabilizing timing to help recover lost horsepower and torque.

Precision CNC machined from high-grade steel, the unit features a corrosion-resistant black zinc finish and permanent engraved timing marks. This damper is internally balanced and designed specifically for 2.0L FSI engines utilizing a 6-bolt hole mounting pattern. Because it uses a viscous fluid design rather than rubber, it requires no maintenance, tuning, or rebuilding over its lifespan.

• Manufacturer Part Number: 551211
• Certification: SFI 18.1 spec
• Mounting: 6-bolt hole pattern
• Construction: High-grade steel with black zinc finish
• Balance: Internally balanced
• Design: Maintenance-free viscous damper
• Origin: Made in USA

Fits select 1998-2006 Audi A4, TT and Volkswagen Beetle, Golf, Jetta, and Passat (1.8L / 1.8T).

Protect your engine's bottom end with the Fluidampr performance harmonic damper. Unlike factory rubber-isolated balancers that can degrade or fail under the stress of performance modifications, Fluidampr utilizes a superior viscous design to control harmful torsional vibration across the entire RPM range. This precision-engineered damper reduces the risk of crankshaft failure and minimizes wear on critical engine components like main bearings and timing sets.

CNC-machined from high-grade steel, this damper features a corrosion-resistant black zinc finish and engraved timing marks for long-term accuracy. As an SFI 18.1 certified component, it is designed for high-performance applications and requires no maintenance or tuning.

• Manufacturer Part Number: 551201
• Certification: SFI 18.1 spec
• Material: High-grade steel construction
• Finish: Black zinc with engraved timing marks
• Mounting: 4-bolt hole pattern
• Balance: Internally balanced
• Design: Maintenance-free viscous fluid type
• Made in the USA

Fits select 1995-2021 Subaru Impreza, WRX, STI, Legacy, Outback, Forester, Baja, and 2005 Saab 9-2X models equipped with the EJ-series engine.

Protect your engine's bottom end with the Fluidampr performance viscous damper. Unlike factory elastomeric balancers that use a rubber ring tuned to a specific frequency, the Fluidampr features a precision-machined housing filled with specialized silicone. This viscous design controls harmful torsional vibration across the entire RPM range, regardless of modifications or power levels. By neutralizing crankshaft twist, you reduce the risk of catastrophic failure and premature wear on main bearings and timing components.

Each damper is CNC machined from high-grade steel and finished in a corrosion-resistant black zinc. The unit is internally balanced and requires no maintenance or tuning. Whether you are building a high-boost track car or a reliable daily driver, Fluidampr provides the durability required for performance EJ builds.

• SFI 18.1 certified for competition use
• Superior viscous damping technology protects at all engine speeds
• Precision CNC machined high-grade steel construction
• Corrosion-resistant black zinc finish with laser-engraved timing marks
• No maintenance, tuning, or rebuilding required
• Proudly made in the USA
• Manufacturer Part Number: 531101

Fits 2000-2009 Honda S2000 Base and CR models (F20C / F22C).

Protect your engine from harmful torsional vibrations that standard elastomer balancers cannot manage. The Fluidampr 530601 performance viscous damper is engineered to provide superior protection across your entire RPM range, especially after modifications increase stress on the rotating assembly. By controlling crank twist, this damper reduces wear on critical main bearings and prevents premature crankshaft failure.

Precision CNC machined from high-grade steel, this unit features a corrosion-resistant black zinc finish with engraved timing marks for high visibility during tuning. The internal viscous design is self-tuning to any engine modifications and requires no maintenance over time. For added convenience during service, the Fluidampr 530601 is specifically designed to accept the factory OEM crank pulley removal tool.

• MPN: 530601
• Certification: SFI 18.1 spec for race use
• Construction: Precision CNC machined steel housing
• Finish: Black Zinc with engraved timing marks
• Balance: Internally balanced
• Maintenance: No rebuilds or fluid changes required
• Origin: Made in USA

Fits select 1986-2005 Mazda 323, Miata, MX-3, and Protege models.

Protect your engine's bottom end with the Fluidampr Performance Damper (MPN: 521001). Unlike factory harmonic balancers that use a rubber ring to dampen specific frequencies, this viscous damper features a precision-machined steel housing and an internal inertia ring floating in a thin layer of silicone. This design provides continuous, self-tuning protection across the entire RPM range, which is critical as engine modifications change the frequency of torsional vibrations.

Engineered for longevity and performance, this unit is CNC machined from high-grade steel and finished with a corrosion-resistant black zinc coating. It features engraved timing marks for accurate tuning and is SFI 18.1 certified for racing applications. This damper is internally balanced and requires no maintenance or tuning, making it a direct-fit upgrade for high-performance builds.

• Vibration Control: Superior viscous design manages torsional vibration at all engine speeds.
• Durability: Reduces wear on main bearings and the risk of crankshaft failure.
• Construction: CNC machined high-grade steel with engraved timing marks.
• Finish: Corrosion-resistant black zinc.
• Certification: SFI 18.1 spec for track and street use.
• Origin: Proudly made in the USA.

Specifications:
Manufacturer Part Number: 521001
Material: Steel
Finish: Black Zinc
Balance: Internal
Safety Rating: SFI 18.1

Fits select import pulley bolt patterns including Honda, Toyota, and Subaru with 2.4-inch to 4.7-inch bolt circles.

The Fluidampr 300024 Universal Small Harmonic Balancer Holding Tool is a shop-grade fixture designed for engine builders and technicians who require a secure method for installing or removing performance dampers. This tool locks the harmonic balancer in place, allowing you to accurately torque the crankshaft bolt without the engine rotating, which is critical for preventing timing issues and ensuring proper component seating.

Built to withstand a daily automotive shop environment, this versatile tool eliminates the need for improvised holding methods that can damage the pulley or crankshaft. Whether you are performing a timing belt service or upgrading to a Fluidampr performance damper, this tool provides the stability needed for high-torque applications.

• Universal fitment for bolt circles ranging from 2.4 inches to 4.7 inches
• Compatible with most import pulley bolt patterns (Honda, Toyota, Subaru, etc.)
• Facilitates easier installation and removal of crankshaft pulleys and dampers
• Durable construction designed for professional shop use
• Manufacturer Part Number: 300024

Fits select 2017+ Subaru vehicles equipped with FA24, FB20, or FB25 engines.

The Fluidampr Crankshaft Adapter Hub Kit (MPN 300023) allows for the installation of the Fluidampr FA20 Performance Damper (p/n 571101) onto newer Subaru FA24, FB20, and FB25 engine platforms. This kit provides a reliable solution for owners looking to upgrade their harmonic balancer to improve torsional vibration control and protect the rotating assembly.

This adapter kit replaces the factory hub configuration, ensuring a precise fit and proper alignment for the 571101 damper. By utilizing a viscous-style damper in conjunction with this specialized hub, you can effectively reduce crankshaft stress across a wider RPM range compared to the factory rubber-based balancer.

• Specifically designed to adapt Fluidampr p/n 571101 to FA24, FB20, and FB25 crankshafts
• Includes precision-machined adapter hub
• Includes sealing O-ring
• Includes genuine Subaru OEM crankshaft bolt
• Manufacturer Part Number: 300023

The Fluidampr 300020 Damper Holding Tool is a professional-grade necessity for engine builders and technicians requiring a secure method to hold a harmonic balancer during installation or removal. Built to withstand the rigors of a daily automotive shop environment, this tool provides the stability needed to properly torque crankshaft bolts without damaging the damper or related components.

This universal tool is engineered to accommodate a wide variety of domestic pulley bolt patterns, making it a versatile addition to any engine service kit. It simplifies the installation of Fluidampr performance dampers by providing a rigid counter-hold point.

• Manufacturer Part Number: 300020
• Adjustment Range: Fits 2.8 inch to 4.7 inch bolt circles
• Chevy/GM Compatibility: 3.20 inch bolt circles
• Ford Compatibility: 2.80 inch and 3.30 inch bolt circles
• Chrysler Compatibility: 2.80 inch bolt circles
• Construction: Heavy-duty steel designed for professional shop use

Fits 1998-2002 Dodge Ram 2500 and 3500 (5.9L).

The Fluidampr High Strength Bolt Kit (MPN 300009) provides the essential hardware required to securely mount your performance harmonic balancer in high-torque environments. Specifically recommended for Cummins 5.9L engines producing up to 700 hp and 1,250 ft-lbs of torque, this kit provides the superior clamping force needed to prevent damper slippage or fastener failure. Each kit features premium heat-treated, high-strength bolts from ARP and a specialized diamond-impregnated friction washer to ensure a stable, precise installation.

• Engineered for high-performance applications up to 700 hp / 1,250 ft-lbs torque
• Includes premium heat-treated ARP high-strength bolts
• Diamond-impregnated friction washer increases grip between the crank and damper
• Provides secure mounting for Fluidampr vibration dampers
• Manufacturer Part Number: 300009

Fits 1994-2023 Dodge and Ram 2500/3500 trucks equipped with the 5.9L or 6.7L Cummins diesel engine.

For high-output Cummins performance builds exceeding 700 hp and 1,250 lb-ft of torque, the Fluidampr Full Power Kit (MPN 300008) provides the essential clamp load and mounting security required to prevent damper movement or crankshaft shearing. This kit replaces standard hardware with premium, heavy-duty components engineered to withstand the extreme torsional stresses of high-torque diesel applications.

• High-Strength Fasteners: Includes heat-treated ARP bolts for superior tensile strength and reliable torque retention over factory hardware.
• Enhanced Friction Interface: Features a diamond-impregnated friction washer that significantly increases the coefficient of friction between the crankshaft and the damper.
• Integrated Torque Plate: The included torque plate features a textured finish and a 5/8-inch hex head, providing a convenient point for barring the engine during service or timing adjustments.
• RPM Stability: For competition or street applications operating above 3,500 RPM, use this kit in conjunction with Fluidampr Drill Pin Kit (p/n 300002).