Fits select 2001-2013 Chevrolet Silverado and GMC Sierra 2500 HD/3500, and Chevrolet Express/GMC Savana 2500/3500 (6.6L).

Protect your diesel engine from head gasket failure with the ARP 230-4201 Head Stud Kit. Designed for the high-cylinder pressures of the 6.6L Duramax, these studs provide significantly more clamping force than factory torque-to-yield (TTY) bolts. This kit is an essential upgrade for any Duramax owner looking to improve engine reliability, especially in applications with increased boost or performance tuning.

• Replaces factory head bolts to prevent cylinder head lifting
• Ensures more consistent clamping force across the cylinder head
• Precision-manufactured to ARP's exacting tolerances
• Manufacturer Part Number: 230-4201
• Includes all necessary studs, parallel-ground washers, and high-strength 12-point nuts

Strengthen the bottom end of your engine with the ARP BMC A Series Main Stud Kit (206-5401). These high-strength fasteners are essential for high-performance builds, providing superior clamping force compared to standard OE bolts to prevent main cap walk and protect your crankshaft bearings under high-RPM or high-load conditions.

Precision-machined to exacting tolerances, these studs ensure consistent torque loading and easier engine assembly. By using a stud instead of a bolt, you achieve more accurate preload on the main caps, which is critical for maintaining proper alignment and block integrity in the BMC A-Series engine.

• Designed specifically for BMC A-Series engine applications
• Replaces factory main cap bolts for increased block rigidity
• Minimizes main cap movement and vibration
• Manufactured from premium high-tensile strength alloys
• Includes high-strength studs, parallel-ground washers, and 12-point nuts
• Manufacturer Part Number: 206-5401

Ensure superior cylinder head sealing and prevent head gasket failure with the ARP 206-4202 Head Stud Kit. Designed for B-Series engines, these studs provide a consistent, accurate clamping force that factory head bolts cannot match, making them essential for high-compression or turbocharged builds.

Each stud is manufactured from premium 8740 chromoly steel and heat-treated to a 200,000 psi tensile strength rating. To ensure maximum fatigue strength and durability, the threads are rolled after the heat-treatment process. This kit is a direct replacement for OEM fasteners and includes all necessary hardware for a professional installation.

• Fits B-Series Non-VTEC engines (B18A1, B18B1, B20B, B20Z)
• High-strength 8740 chromoly steel construction
• Rated at 200,000 psi tensile strength
• Precision thread-rolled after heat treat for superior fatigue resistance
• Includes parallel-ground washers and 12-point nuts
• Manufacturer Part Number: 206-4202

Fits Volkswagen 02M 6-speed manual transmissions.

The ARP 204-3003 Ring Gear Bolt Kit provides a critical drivetrain upgrade for high-performance and racing applications. Designed to secure the ring gear to the differential carrier, these high-strength fasteners replace the factory hardware that can often become a failure point under increased torque loads. Each bolt is engineered to withstand extreme shear forces, ensuring your differential remains intact during aggressive launches and high-horsepower operation.

• Specifically engineered for the VW 02M manual transmission differential
• Heat-treated for superior strength and fatigue resistance
• Provides essential reliability for high-torque and track-driven vehicles
• Includes all necessary bolts for a complete ring gear installation
• Manufacturer Part Number: 204-3003

The ARP 204-3002 Ring Gear Bolt Kit is a critical reliability upgrade for Volkswagen 02A transmissions. Factory differentials often use rivets to secure the ring gear, which can shear or fail under high-torque applications or spirited driving. This kit replaces those weak points with high-strength fasteners capable of handling significantly more stress than OE hardware.

Forged from 8740 chromoly steel and heat-treated to ensure consistent material integrity, these M10 bolts are essential when installing a limited-slip differential (LSD) or reinforcing a stock transaxle. The precision-machined threads and parallel-ground washers allow for accurate torque readings and a secure clamp load that resists loosening over time.

• Manufacturer Part Number: 204-3002
• Application: Volkswagen 02A Transmissions
• Thread Size: M10
• Material: 8740 Chromoly Steel
• Hardware Included: High-strength bolts and hardened washers

Fits select 1974-1996 Nissan 260Z, 280Z, 280ZX, and 300ZX models (L24 Late / L26 / L28 / VG30E / VG30ET).

Secure your engine's rotating assembly with this high-strength rod bolt kit from ARP. As the most critical fasteners in the bottom end, these bolts are designed to replace factory hardware that can stretch or fail under high-RPM or high-load conditions. By providing consistent clamping force, these fasteners prevent rod cap movement and protect your crankshaft bearings during performance driving.

• Manufacturer Part Number: 202-6003
• Fits L24 (Late), L26, and L28 inline-six engines
• Fits VG30E and VG30ET V6 engines
• Essential for engine rebuilds and high-performance applications
• Engineered for superior tensile strength compared to OE hardware

Engineered for high-performance applications, the ARP 201-6002 Custom Age 625+ Rod Bolt Kit provides essential clamping force for the high-revving BMW S85 engine. These fasteners replace the factory rod bolts to prevent bolt stretch and potential catastrophic failure during high-RPM operation in 5.0L V10 powerplants.

Each bolt is manufactured from ARP's proprietary Custom Age 625+ super-alloy, providing a typical tensile strength of 260,000 to 280,000 psi. This material offers superior fatigue life and heat resistance compared to standard chromoly fasteners. The 12-point head design ensures positive socket engagement for accurate torque application during installation.

• Fits BMW S85 V10 engines (5.0L)
• Material: Custom Age 625+ super-alloy
• Head Style: 12-Point
• Tensile Strength: 260,000 - 280,000 psi
• Precision machined for perfect concentricity
• Manufacturer Part Number: 201-6002

Secure your engine's rotating assembly with the ARP 200-6219 ARP2000 Series rod bolt kit. Designed to withstand the high-stress environment of performance engines, these bolts provide the critical clamping force needed to prevent rod cap separation. Each fastener is manufactured from ARP2000 alloy, a material specifically engineered to outperform standard OEM hardware in high-RPM and high-load applications.

This kit features fasteners that are precision machined to ensure consistent preload and superior fatigue life. By replacing worn or factory fasteners with these high-strength components, you ensure the structural integrity of your connecting rods during assembly and operation.

• Manufacturer Part Number: 200-6219
• Material: ARP2000 Alloy
• Fastener Diameter: 3/8 inch
• Under Head Length (UHL): 1.600 inch
• Fastener Style: Connecting Rod Bolt
• Includes complete kit for designated applications

Specifically engineered for the GM 6.6L Duramax diesel engine, the ARP Harmonic Balancer Bolt Kit (129-2503) provides the essential clamping force required to keep your harmonic damper securely seated on the crankshaft snout. High-torque diesel applications place significant stress on factory hardware; this kit replaces the OEM bolt with a high-strength fastener designed to resist stretching and loosening under extreme operating conditions.

• Fits GM Duramax (6.6L) engines
• Replaces factory harmonic balancer mounting hardware
• Designed for superior clamping force and reliability
• Essential for high-performance or high-mileage diesel builds
• Manufacturer Part Number: 129-2503

Fits Honda L15 4-cylinder engines (1.5L).

The ARP 108-5401 Main Stud Kit provides the critical clamping force required to secure the main caps in high-performance or forced-induction Honda L15 builds. Replacing the factory main bolts with high-strength studs helps prevent main cap walk and ensures the crankshaft remains properly aligned under extreme loads and high-RPM operation.

• Specifically engineered for the Honda L15 1.5L engine platform
• Significantly higher tensile strength compared to OE main bolts
• Precision-rolled threads for maximum fatigue life and consistent torque readings
• Designed to eliminate main cap movement and fretting
• Manufacturer Part Number: 108-5401

Each kit comes complete with precision-machined main studs, hardened parallel-ground washers, and high-strength nuts to ensure a professional-grade installation for your bottom end.

Fits select 1992-2005 Dodge Stealth, Mitsubishi 3000GT, Diamante, and Eclipse models (3.0L / 3.5L V6).

This ARP Connecting Rod Bolt Kit is an essential upgrade for any high-performance Mitsubishi 3.0L or 3.5L V6 build. As the critical link in your engine's rotating assembly, rod bolts must withstand immense reciprocating forces. ARP fasteners are designed to replace factory bolts that can stretch or fatigue under high RPM and increased cylinder pressures, providing the clamping force necessary to prevent catastrophic engine failure.

• Manufacturer Part Number: 107-6004
• Compatible Engines: 3.0L and 3.5L V6
• Includes high-strength rod bolts and assembly lubricant
• Designed for superior fatigue life and tensile strength compared to OEM hardware
• Ideal for both naturally aspirated and forced induction applications

Fits 1996-2006 Eagle Talon TSi and Mitsubishi Eclipse/Lancer Evolution (2.0L).

The ARP 107-2803 Flywheel Bolt Kit is an essential upgrade for 4G63-powered vehicles, engineered to provide significantly higher tensile strength and clamping force than standard OEM hardware. These high-performance fasteners are designed to secure the flywheel to the crankshaft, preventing bolt stretch and potential failure in high-RPM or high-horsepower applications. Whether you are replacing a clutch or building a dedicated track engine, these bolts ensure the structural integrity of your drivetrain.

• Manufacturer Part Number: 107-2803
• Engine Compatibility: Mitsubishi 2.0L 4G63 (T/TE)
• Application: Secures flywheel to crankshaft
• Increased tensile strength for performance reliability
• Direct replacement for factory hardware

Fits 2002-2006 Mitsubishi Lancer and Evolution models including ES, LS, Ralliart, and Evolution MR/RS/SE.

Secure your wheels with the industry-standard strength of ARP wheel studs. This kit is designed to replace factory hardware that may be prone to stretching or fatigue under the high loads of performance driving, track use, or when using aftermarket wheels and spacers. Engineered for precision and durability, these studs provide the consistent clamping force necessary for safe operation on and off the circuit.

• Manufacturer Part Number: 100-7717
• Quantity: 5 Studs (Covers one wheel)
• Direct replacement for OE Mitsubishi wheel studs
• Compatible with 2002-2006 Mitsubishi Lancer (all trims) and Evolution 8/9

This individual ARP fastener provides the high-tensile strength and reliability required for professional-grade automotive assemblies. Measuring 1/2" in diameter with a 6.500" overall length, this stud is engineered for precise clamping force in high-load applications. The broached end design allows for easy installation and removal using a standard hex key, ensuring the stud can be properly seated and adjusted even in recessed or tight-clearance locations.

• Manufacturer Part Number: AR6.500-1LB
• Diameter: 1/2 inch
• Total Length: 6.500 inches
• Material: High-strength alloy steel
• Feature: Broached end for easy tool engagement
• Finish: Corrosion-resistant black oxide

This ARP broached Allen head stud is engineered for high-performance applications requiring exceptional clamping force and precise fastener engagement. Measuring 1/2-inch in diameter with a 5.250-inch overall length, this individual stud serves as a heavy-duty replacement for standard hardware in high-load environments.

The broached design incorporates an internal hex (Allen) drive at the end of the stud, enabling easier installation and removal in tight-clearance areas where traditional sockets or wrenches cannot reach. This feature allows for accurate pre-loading and torque application without damaging the threads or the fastener body. Manufactured to ARP's exacting tolerances, it provides the reliability needed for critical automotive and mechanical assemblies.

• Manufacturer Part Number: AR5.250-1LB
• Diameter: 1/2 inch
• Overall Length: 5.250 inches
• Drive Style: Broached Internal Hex (Allen)
• Quantity: Single Stud

This ARP high-strength stud is engineered for precision automotive applications where fastener reliability is critical. Featuring a 3/8-inch diameter and a 2.310-inch overall length (OAL), this fastener is manufactured to the rigorous standards associated with the ARP name, ensuring consistent clamping force and durability in high-stress environments.

• Brand: ARP
• Manufacturer Part Number: AJ2.310-1LB
• Fastener Diameter: 3/8 inch
• Overall Length (OAL): 2.310 inches
• Precision-machined for maximum strength and thread engagement
• Suitable for custom builds and replacement of worn specialty hardware

Ensure professional-grade accuracy during engine assembly with the ARP M12 x 1.75 Thread Cleaning Tap. Unlike standard cutting taps that remove metal and can weaken thread engagement, this specialized thread chaser is designed specifically to clean out dirt, old sealant, and carbon deposits from existing threads. This process is essential for achieving precise, repeatable torque readings on critical fasteners like head studs and main bolts.

• Manufacturer Part Number: 912-0016
• Thread Size: M12 x 1.75
• Type: Metric Thread Cleaning Tap
• Material: High-quality tool steel construction
• Application: Designed to chase and clean existing threads without removing material
• Essential for engine block and cylinder head preparation

Ensure precision in your engine assembly with the ARP 912-0011 Thread Cleaning Chaser Tap. Unlike standard cutting taps that remove metal and can weaken parent material, this specialized chaser is designed to clean and restore internal threads. It effectively removes old sealant, rust, and debris to ensure smooth fastener engagement and accurate torque readings on head bolt or main stud installations.

• Size: M11 x 2.00 metric
• Function: Cleans and restores threads without cutting new material
• Application: Ideal for cleaning block holes before fastener installation
• Benefit: Promotes consistent clamping force by ensuring accurate torque
• Manufacturer Part Number: 912-0011

Properly prepare your engine block or cylinder head for assembly with the ARP M11 x 1.25 Thread Cleaning Chaser Tap (MPN: 912-0004). Unlike a standard cutting tap, which removes metal and can weaken threads, this chaser is designed to follow the original thread path to remove dirt, corrosion, and old sealant without compromising the parent material.

Using a thread chaser is a critical step in any engine build or major repair. By ensuring the internal threads are clean and free of debris, you eliminate friction-induced false readings during the tightening process, allowing for the precise torque values required for high-performance fasteners.

• Thread Size: M11 x 1.25 Metric
• Purpose: Cleans and restores internal threads without cutting new material
• Construction: Precision machined from high-quality tool steel for durability
• Application: Ideal for preparing engine block head bolt holes and other critical fastener locations
• Part Number: 912-0004

Achieving accurate torque readings during engine assembly starts with clean, debris-free internal threads. The ARP 912-0003 M10 x 1.50 Thread Cleaning Chaser Tap is an essential tool for any engine builder. Unlike standard cutting taps that remove metal and can weaken thread engagement, this chaser is designed to follow the existing thread path to remove carbon, old sealant, and corrosion without compromising the integrity of the block or cylinder head.

This specialized tool ensures that your head bolts, main studs, or other fasteners reach their intended clamping force by eliminating friction caused by fouled threads. It is a necessary addition to the toolbox for maintaining high-performance engines and ensuring repeatable assembly results.

• Thread Size: M10 x 1.50 Metric
• Function: Cleans and restores internal threads without removing parent material
• Construction: High-strength steel for long-term shop use
• MPN: 912-0003

Ensure fastener accuracy and structural integrity with the ARP 912-0001 M8 x 1.25 Thread Cleaning Chaser Tap. Unlike standard cutting taps that remove metal and can weaken threads, this specialized tool is designed to restore and clean existing internal threads without compromising their fit or material strength.

Using a thread chaser is a critical step in any high-performance engine build or chassis assembly. It effectively removes old thread locker, corrosion, and debris from blind holes, allowing for precise torque readings and preventing fastener galling. This professional-grade chaser is essential for maintaining any M8 x 1.25 threaded components.

• Manufacturer Part Number: 912-0001
• Thread Specification: M8 x 1.25 Metric
• Application: Cleans and restores internal threads without removing metal
• Essential for ensuring accurate fastener torque and clamp load

The ARP 901-8800 Tapered Piston Ring Compressor provides a precise and reliable solution for installing pistons without risking damage to the rings. Unlike adjustable band-style compressors, this tool is CNC-machined with a specific taper that ensures the rings are compressed evenly as they enter the cylinder bore. This design significantly reduces the chance of ring breakage or improper seating during engine assembly.

Manufactured for durability and precision, this 88.0mm compressor features a smooth internal finish to allow the piston assembly to slide into the block with minimal resistance. It is an essential tool for professional engine builders and enthusiasts seeking repeatable results and bore-specific accuracy.

• Precision bore size: 88.0mm
• CNC-machined for exact tolerances
• True radius taper design for smooth ring compression
• Hard-anodized finish for wear resistance
• Manufacturer Part Number: 901-8800

Ensure precise, damage-free piston installation with the ARP 901-8750 Tapered Ring Compressor. Engineered for professional engine builders, this tool features a true radius taper design that gradually and evenly compresses piston rings as the assembly is pushed into the cylinder bore. This eliminates the risk of ring breakage or snagging often associated with generic adjustable sleeve compressors.

CNC-machined from high-quality billet aluminum and finished with a hard-anodized coating, this compressor provides a smooth, low-friction surface for the piston to slide through. Each unit is sized to a specific bore diameter to ensure perfect alignment with the engine block, making it an essential tool for high-performance builds where tolerances are critical.

• Bore Size: 87.5mm
• Material: CNC-machined billet aluminum
• Finish: Hard-anodized for wear resistance
• Design: Precision true-radius taper
• Manufacturer Part Number: 901-8750

Ensure a precise and damage-free engine assembly with the ARP 901-8725 Tapered Piston Ring Compressor. This specialized tool is engineered with a fixed 87.25mm bore to provide a smooth, gradual compression of the piston rings as they enter the cylinder block. Unlike universal adjustable tools, this tapered design eliminates the risk of ring snagging or breakage during installation.

• Manufacturer Part Number: 901-8725
• Bore Diameter: 87.25mm
• Type: Fixed-diameter tapered compressor
• Engineered for high-performance engine building and precision ring seating

Simplify your engine assembly and protect your piston rings with the ARP 901-8650 Tapered Piston Ring Compressor. Designed for professional engine builders, this fixed-bore tool provides a much safer and more efficient alternative to universal adjustable compressors. By using a true-bore taper, it ensures perfectly uniform compression of the rings as the piston slides into the cylinder, significantly reducing the risk of ring breakage or bore scoring.

• Precision-machined from 6061-T6 aluminum billet for exact tolerances
• Hard-anodized finish for superior wear resistance and reduced friction during installation
• Fixed 86.5mm bore size ensures consistent, repeatable results
• Tapered internal design prevents ring snagging
• Manufacturer Part Number: 901-8650

Streamline your engine assembly with the ARP 86.0mm Tapered Piston Ring Compressor (MPN 901-8600). Engineered for precision, this tool provides a smooth, even compression of the ring pack to ensure a damage-free transition into the cylinder bore. Unlike universal adjustable compressors, this fixed-bore sleeve eliminates the risk of ring overlap or breakage during installation.

• Precision CNC-machined specifically for 86.0mm bore diameters.
• Tapered bore design allows for seamless piston and ring installation.
• Constructed for durability and long-term reliability in professional engine building environments.
• Helps prevent scratching of cylinder walls and damage to delicate performance rings.
• Manufacturer Part Number: 901-8600

The ARP 901-8400 tapered piston ring compressor is a precision-engineered tool designed to streamline the engine assembly process. Unlike generic adjustable compressors, this fixed-diameter tool ensures uniform compression of the piston rings for snag-free installation into the cylinder bore.

CNC-machined from premium 6061-T6 billet aluminum, this compressor features a hard-anodized finish for maximum wear resistance. The inner diameter is specifically tapered to guide the piston and rings smoothly into the block, significantly reducing the risk of ring breakage or damage to the cylinder wall during assembly.

• Manufacturer Part Number: 901-8400
• Bore Diameter: 84.0mm (3.307")
• Material: 6061-T6 Billet Aluminum
• Finish: Hard-Anodized Black
• Type: Tapered Fixed-Diameter Bore

Ensure a precise and damage-free engine assembly with the ARP 82.5mm tapered piston ring compressor. This professional-grade tool is engineered to compress piston rings evenly, allowing the piston assembly to slide into the cylinder bore without snagging or breaking a ring. It is an essential component for engine builders working with 82.5mm bore sizes who demand exact tolerances.

CNC-machined from 6061-T6 aluminum billet, this compressor features a true-radius taper design that is significantly more effective than generic adjustable pliers-style compressors. The interior is hard-anodized for a smooth, low-friction finish and long-term durability in high-volume shop environments.

• Bore Size: 82.5mm
• Material: CNC-machined 6061-T6 aluminum billet
• Finish: Hard-anodized for wear resistance
• Design: True-radius taper for seamless ring transition
• Manufacturer Part Number: 901-8250

Ensure a precise and damage-free engine assembly with the ARP 82.0mm Tapered Piston Ring Compressor (901-8200). Unlike generic adjustable tools, this fixed-diameter bore tool features a precision-machined radius taper to smoothly compress piston rings as they enter the cylinder block, significantly reducing the risk of ring breakage or bore scoring during installation.

• Engineered for a precise 82.0mm bore size
• CNC-machined construction ensures perfect alignment and dimensional accuracy
• Hard-anodized finish for a low-friction surface and long-term durability
• True radius design provides even compression around the entire ring circumference
• Essential tool for professional engine builders and performance enthusiasts
• Manufacturer Part Number: 901-8200

The ARP 901-8150 Tapered Piston Ring Compressor is a precision engine building tool designed to streamline piston installation while protecting rings from damage. Unlike generic adjustable compressors, this fixed-diameter tool features a true radius taper that gradually and evenly compresses the rings as the piston moves into the bore.

Each compressor is CNC-machined from high-strength 7075-T6 aluminum and finished with a Type III hard-anodized coating. This combination ensures long-term durability and a low-friction surface that prevents rings from catching or breaking during the assembly process. It is an essential tool for technicians and engine builders who require exact tolerances and repeatable results.

• Bore Diameter: 81.5mm
• Material: 7075-T6 Aluminum
• Finish: Black Hard-Anodized
• Design: CNC-Machined Tapered Bore
• Manufacturer Part Number: 901-8150