The Fleece Performance stainless steel exhaust manifold stud kit is a direct upgrade for the 1994-2018 Dodge Ram 2500 and 3500 equipped with the 5.9L or 6.7L Cummins diesel engine. These studs are engineered to solve the common issues of factory bolt corrosion and manifold warping by providing superior clamping force and a corrosion-resistant mounting solution.

Manufactured from aged 603 stainless steel, these studs are impervious to rust and feature a 4mm internal hex head for precise, simplified installation into the cylinder head. The kit includes 12-point nuts and matching washers to ensure a secure, high-pressure seal even under extreme thermal cycles.

• Fits 1994-2018 Dodge Ram 2500/3500 (5.9L / 6.7L Cummins)
• Produced from high-strength aged 603 stainless steel
• 4mm internal hex head for easy installation and removal
• Increases clamping force over factory hardware (Torque to 40 ft-lbs with anti-seize)
• Includes 12-point nuts and washers
• 1994-1998 5.9L 12V models: Fits aftermarket manifolds only
• 2003-2007 5.9L 24V models: Requires removal of factory heat shield
• Manufacturer Part Number: FPE-34772

Fits select 1994-2018 Dodge Ram 2500 and 3500 trucks equipped with 5.9L and 6.7L Cummins diesel engines. This Fleece Performance exhaust manifold stud kit is designed to provide superior clamping force and easier manifold installation compared to factory bolts.

Manufactured from aged 603 stainless steel, these studs are impervious to rust and corrosion, ensuring they won't seize in the cylinder head over time. Each stud features a 7mm external hex head, allowing you to easily thread them into the head with a socket or wrench. The kit includes high-strength 12-point nuts and washers to complete the installation with a professional, clean appearance.

• Replaces factory exhaust manifold hardware with aged 603 stainless steel studs
• 7mm external hex head for straightforward installation
• Increased clamping force (torque to 40 ft-lbs using anti-seize)
• Highly resistant to corrosion and thermal cycling fatigue
• Includes 12-point nuts and matching washers
• Application Note: 1994-1998 5.9L 12V models require an aftermarket exhaust manifold; 2003-2007 5.9L 24V models require removal of the factory heat shield
• Manufacturer Part Number: FPE-34771

Fits 2003-2004 Dodge Ram 2500 and 3500 models equipped with the Cummins diesel engine.

The Fleece Performance Fuel System Upgrade Kit is a comprehensive solution for 2003-2004 Dodge Cummins owners looking to enhance fuel delivery and reliability. This kit replaces the factory fuel supply system with high-performance components designed to support up to 800 hp, including dual CP3 configurations. At the heart of the system is the PowerFlo Lift Pump, which features a dual gerotor design for increased flow capacity and a built-in sending unit and float to restore accurate fuel gauge functionality. The active fill bucket technology eliminates common fuel starvation problems, such as the 1/4 tank issue, without requiring draw straws or tank sumps.

• PowerFlo Lift Pump: Direct-fit in-tank pump with dual gerotor technology and limited lifetime warranty.
• Filtration: Includes a Donaldson 3-micron fuel filter and water separator (P/N P553207) for superior engine protection.
• Installation: Bolt-on design requires no drilling or cutting of the fuel tank; includes push-lock hose and AN/barb fittings.
• Fuel Filter Delete: Includes FPE-FFD-RO-3G to bypass the restrictive factory filter housing.
• Kit Components: PowerFlo Lift Pump, filter base with mounting hardware, distribution filter block, and all necessary plumbing.

Fits 1998-2002 Dodge Ram 2500 and 3500 Base models with the 5.9L Cummins engine.

The Fleece Performance PowerFlo Lift Pump and Fuel System Upgrade Kit is a comprehensive solution for the 1998.5-2002 Dodge Cummins VP44 fuel system. This all-in-one kit replaces restrictive factory plumbing and unreliable pumps with a high-performance, in-tank dual gerotor system capable of supporting up to 800 hp. Unlike aftermarket frame-mounted pumps, the PowerFlo requires no drilling, cutting, or external sumps, and its active fill bucket design eliminates the common 1/4-tank fuel starvation issues encountered with draw straws.

This kit restores accuracy to your dash with a new integrated fuel sending unit and float. For engine protection, the system includes a Donaldson 3-micron fuel filter and water separator mounted to a heavy-duty distribution block with integral mounting points.

• 800 HP Support: Dual gerotor pump design provides high flow capacity and reliability for performance builds, including dual CP3 configurations.
• Direct In-Tank Fitment: Replaces the OEM assembly without tank modifications; installs in significantly less time than traditional high-flow pumps.
• Complete Filtration System: Features a Donaldson 3-micron fuel filter/water separator and a distribution filter block with Push Lock hoses and AN fittings.
• Integrated Fuel Sender: Includes a new float and sending unit to resolve non-functional fuel gauges.
• Application Note: 1998.5-1999 model years require a chassis-side fuel heater connector pigtail (FPE-HAR-CUMM-FH-PT, sold separately).

• Manufacturer Part Number: FPE-34754
• Filter Rating: 3 Micron
• Pump Style: Dual Gerotor In-Tank

Fits select 2003-2012 Dodge and Ram 2500/3500 trucks equipped with the Cummins diesel engine.

Replace a worn or failing factory fan pulley with this Fleece Performance billet aluminum fan drive pulley. Precision-machined for exact tolerances and finished in a durable black anodize, this pulley is designed to withstand the harsh environment of the engine bay while providing a direct-fit solution for the Cummins belt drive system. It installs as a straight replacement for the original equipment without modification, utilizing the factory mounting configuration.

• CNC-machined billet aluminum construction
• Black anodized finish for corrosion and wear resistance
• Outside Diameter: 6.965 inches
• Direct replacement for OE part number: 4930580
• Manufacturer Part Number: FPE-34660-BLK

Fits select 2013-2018 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine.

This Fleece Performance billet aluminum fan drive pulley provides a durable, precision-machined upgrade for your cooling system. Designed as a direct replacement for factory units, it eliminates the potential for failure associated with stock pulleys while adding a clean, black anodized aesthetic to the engine bay. This pulley is engineered to maintain proper belt alignment and tension, ensuring reliable operation of the engine fan in heavy-duty towing and high-load conditions.

• Material: CNC-machined billet aluminum
• Finish: Corrosion-resistant black anodized
• Outside Diameter: 6.965"
• Compatibility: Replaces OE part number 5295226
• Part Number: FPE-34659-BLK

Fits 2003-2018 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L or 6.7L Cummins turbo diesel engine.

This Fleece Performance Upper Fan Pulley Idler is engineered to replace the factory component with a more durable and aesthetically pleasing solution. Designed for precise belt alignment and smooth rotation, this idler pulley ensures your accessory drive system operates efficiently while the black contrast finish adds a custom look to your Cummins engine bay. It is a direct-fit replacement that installs into the factory location without modification.

• Direct replacement for the factory upper fan pulley/idler
• High-quality construction for long-term durability
• Distinctive black contrast finish for an upgraded engine bay appearance
• Engineered for precise belt tracking and tension
• Manufacturer Part Number: FPE-34657-BLK-SPK

Fits 2001-2004 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 trucks equipped with the LB7 engine.

Fleece Performance high-pressure injection lines are a critical replacement for maintaining fuel system health in your 2001-2004 LB7 engine. Over time, factory lines are prone to internal and external corrosion, which often leads to failure or breakage. Reusing old, corroded lines during an injector service is a leading cause of debris contamination that can ruin newly installed injectors. These brand-new lines ensure a clean, reliable fuel path from the rail to the injector, protecting your investment and ensuring proper engine performance.

• Complete set of 8 injection lines for a full engine bank replacement
• Brand-new construction with no core charge required
• Direct-fit replacement for corroded or failing factory lines
• Essential for preventing contamination during injector swaps
• Manufacturer Part Number: FPE-34611

Fits select 2011-2013 Chevrolet Silverado 3500 HD (6.6L) pickup trucks with a long bed (8') and single fuel tank configuration.

The Fleece Performance PowerFlo in-tank lift pump (FPE-34564) is a high-performance OEM replacement designed to protect your LML Duramax's fuel system. Factory 2011-2013 LML engines rely on the CP4 injection pump to pull fuel from the tank under vacuum, which increases strain and risks premature pump failure. The PowerFlo provides positive fuel pressure to the CP4, reducing stress and supporting performance builds up to 800 hp, including dual CP3 configurations.

Built for reliability and ease of installation, this lift pump features a dual gerotor design and an active fill bucket that eliminates common 1/4-tank fuel starvation issues without needing tank sumps or draw straws. It installs directly into the factory location, retaining original fuel lines while offering the flexibility to run aftermarket lines via threaded ports.

• Manufacturer Part Number: FPE-34564
• Dual Gerotor Pump: Increases flow capacity and reliability
• Capacity: Supports up to 800 hp
• Active Fill Bucket: Prevents 1/4-tank fuel starvation
• Fitting Ports: Threaded for -8 O-ring fittings (3/4"-16 thread)
• Installation: Direct OEM in-tank replacement
• US Patent No. D910,081

Fits select 2011-2016 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD trucks (6.6L LML Duramax) with a 6.5' short bed.

The Fleece Performance PowerFlo lift pump is a high-performance in-tank solution designed to protect and optimize your LML Duramax fuel system. From the factory, the LML relies on the CP4 injection pump to pull fuel from the tank under vacuum, which increases stress on the pump and leads to premature failure. The PowerFlo provides positive fuel pressure to the CP4, significantly reducing strain while supporting up to 800 hp, including dual CP3 configurations.

Equipped with an active fill bucket, this assembly eliminates common high-flow fuel system issues like 1/4 tank starvation without requiring tank sumps or draw straws. The dual gerotor pump design ensures maximum reliability and flow capacity while maintaining a quiet, OEM-level operation. For custom setups, the pump outlet and return are threaded to accept -8 O-ring fittings (3/4"-16 thread).

• Direct OEM in-tank replacement utilizing factory fuel lines
• Dual gerotor pump design for increased flow and reliability
• Capable of supporting up to 800 hp
• Active fill bucket prevents 1/4 tank fuel starvation
• Threaded outlet/return: -8 O-ring (3/4"-16 thread)
• Manufacturer Part Number: FPE-34563
• US Patent No. D910,081

Fits select 2011-2024 Ram 2500 and 3500 models.

The Fleece Performance PowerFlo Lift Pump is a high-performance, in-tank replacement for your Ram truck's fuel system. Engineered as a drop-in solution, this assembly utilizes a dual gerotor design to significantly increase flow capacity and reliability, supporting power levels up to 800 hp—including dual CP3 configurations. Unlike traditional high-flow pumps, the PowerFlo integrates an active fill bucket, which eliminates the need for tank sumps or draw straws and prevents common 1/4-tank fuel starvation issues.

• Direct in-tank replacement: Retains factory fuel lines, fuel heater, and water-in-fuel sensor.
• Dual Gerotor Pumps: Increases flow and reliability over the factory unit.
• Aftermarket Ready: Outlet and return ports are threaded for -8 O-ring fittings (3/4"-16 thread) for use with custom fuel systems.
• Seamless Integration: Active fill bucket eliminates the need for additional air filtration or draw straws.
• Manufacturer Part Number: FPE-34562
• Replaces OE Part Number: 5145571AA

Note: This pump is not compatible with 2020 and newer models equipped with the factory 50-gallon fuel tank option. It is not for use in Cab & Chassis applications.

Fits 2010 Dodge Ram 2500 and 3500 models.

The PowerFlo Lift Pump by Fleece Performance is a direct in-tank replacement designed for 2010 Dodge Ram trucks. Engineering a solution to the common limitations of factory units, the PowerFlo uses a dual gerotor pump design that provides enough flow to support up to 800 hp, including demanding dual CP3 configurations. Unlike traditional high-flow systems, this assembly utilizes an active fill bucket to eliminate "1/4 tank issues" and the need for tank sumps or draw straws.

Installation is streamlined, as the PowerFlo retains the factory water-in-fuel (WIF) sensor, fuel heater, and fuel lines. For those building custom fuel systems, the pump outlet and return are threaded to accept -8 O-ring fittings (3/4"-16 thread). This assembly offers the reliability of OEM-quality components with the flow required for high-performance diesel builds.

• Direct OEM in-tank replacement installs in half the time of external pumps
• Dual gerotor design for increased flow and redundancy
• Supports up to 800 hp and dual CP3 setups
• Eliminates the need for tank sumps or additional air filtration
• Threaded outlet/return for -8 O-ring fitting compatibility
• Replaces OE part number: 68084965AB
• Manufacturer Part Number: FPE-34561

Note: Not compatible with Cab & Chassis applications.

Fits select 2005-2009 Dodge Ram 2500 and 3500 models.

The PowerFlo Lift Pump from Fleece Performance is the ultimate in-tank fueling solution for the 5.9L and 6.7L Cummins. Designed as a direct OEM replacement, this assembly is the only in-tank lift pump capable of supporting up to 800 hp, including demanding dual CP3 configurations. By utilizing an active fill bucket, the PowerFlo eliminates the common 1/4-tank fuel starvation issues associated with draw straws and fuel tank sumps, ensuring your engine gets the volume it needs without requiring additional air filtration or external plumbing.

Built with a dual gerotor design, this assembly provides increased flow capacity and redundancy over the factory unit. It retains all critical factory components, including the water-in-fuel (WIF) sensor, fuel heater, and factory fuel lines, for a clean installation that takes significantly less time than frame-mounted alternatives. For those running custom setups, the pump outlet and return are threaded to accept -8 O-ring fittings (3/4"-16 thread) for seamless aftermarket integration.

• Manufacturer Part Number: FPE-34560
• Supports up to 800 hp
• Dual gerotor pump design for increased reliability
• Active fill bucket eliminates 1/4-tank issues
• Direct in-tank replacement; no sumps or draw straws required
• Compatible with factory fuel lines, heater, and WIF sensor
• Threaded outlet/return: -8 AN O-ring (3/4"-16 thread)
• Replaces OE Part Number: RL143160AB

The Fleece Performance FPE-34382 Transmission Heat Exchanger Bypass Plug Kit provides a secure solution for vehicles where the factory heat exchanger is being removed or a coolant bypass kit is being installed. This kit allows you to safely bypass the factory heat exchanger mounted on the driver’s side of the Cummins engine block, eliminating potential failure points and simplifying the cooling system.

• Precision Sealing: Includes one M16 O-ring plug specifically designed to seal the coolant port at the engine block.
• Line Protection: Two included caps securely seal the heat exchanger lines to prevent leaks and debris entry.
• System Integration: Essential for maintaining system integrity when installing secondary coolant bypass components.
• Part Number: FPE-34382

The Fleece Performance FPE-34224-B is a precision-machined adapter designed to provide a secure, leak-free transition in high-performance fluid systems. This universal fitting converts a 1.325-inch O-ring bore to a standard -10AN male flare, facilitating the connection of custom lines to specialized housings or pump ports.

Constructed from high-grade billet aluminum, this adapter offers superior strength and corrosion resistance compared to standard cast fittings. It is engineered to maintain a reliable seal under the pressure and temperature demands of automotive plumbing applications, including fuel, oil, and cooling systems.

• Manufacturer Part Number: FPE-34224-B
• Material: Billet Aluminum
• Side A: -10AN Male
• Side B: 1.325-inch O-Ring Bore
• Fitment: Universal application

Fits select 2013-2018 Ram 2500 and 3500 models with the Cummins diesel engine.

Replace a failed or leaking Charge Air Cooler (CAC) boot with this heavy-duty 45-degree silicone connector from Fleece Performance. Engineered for high-boost applications, this boot utilizes 4-ply aramid polyester reinforcement to prevent expansion and withstand the elevated temperatures found in turbocharged diesel systems. The precise 2.75-inch internal diameter ensures a secure, leak-free seal on 2nd Gen style intercooler piping, maintaining optimal intake pressure for consistent performance.

• Manufacturer Part Number: FPE-34145
• Angle: 45 Degree
• Internal Diameter (ID): 2.75 inches
• Construction: 4-Ply Aramid Polyester Reinforcement
• Leg Lengths: 2.375 inches and 3.875 inches
• Designed for durability under high heat and pressure

Ensure your engine receives maximum airflow without compromising protection with the Fleece Performance FPE-34133 Custom Air Filter. Designed as a high-performance replacement component, this filter features high-efficiency media engineered to capture fine particulates while reducing intake restriction. Whether you are maintaining an existing Fleece Performance setup or replacing a worn element, this filter provides the durability and filtration capacity required for heavy-duty and high-output applications.

• Manufacturer Part Number: FPE-34133
• High-flow design optimizes intake efficiency and throttle response
• Advanced filtration media protects internal engine components from contaminants
• Durable construction for long-service life in demanding environments
• Direct fit for compatible Fleece Performance intake systems

The Fleece Performance Universal Turbo Drain Nipple provides a reliable, high-flow solution for your turbocharger's oil return system. This fitting is engineered to simplify installation and prevent common leak points at the turbo oil outlet. By utilizing an integrated O-ring seal, this nipple eliminates the need for paper gaskets or silicone RTV, ensuring a secure, leak-proof interface against the drain flange.

Precision-machined for durability, this component is specifically sized for use with a 7/8in (22.2mm) ID oil drain hose. Whether you are plumbing a custom turbo setup or replacing a compromised factory fitting, this Fleece Performance component offers the reliability required for high-heat automotive environments.

• Integrated O-ring seal ensures a leak-free connection without gaskets
• Designed for 7/8in (22.2mm) inner diameter hose applications
• Universal design compatible with various turbo oil drain configurations
• Replaces or upgrades standard flange-mounted drain nipples
• Manufacturer Part Number: FPE-34131