Complete kit of O-rings and washers for Twin Cool cooling systems. Replace whenever the cylinder head is removed. Made in the U.S.A.
Active filters
Precision rolled threads for consistent torque and reduced galling.
Wide under-head flange improves sealing to help prevent leaks.
170,000 psi tensile rating and 12-point hardened bolts for long-term durability.
- Precision j-form threads prevent galling and ensure consistent torque loading.
- Tensile strength rated at 180,000 psi; stronger than OEM and grade 8 fasteners.
- Complete kit for one motor; includes moly assembly lubricant.
- Made in the USA.
High-quality base gasket for reliable engine sealing. Fuel-resistant construction prevents creep and cracking for lasting performance.
Premium cam cover gasket built for durability and fuel resistance. Multiple types available to suit application needs. Made in the USA.
- Precision j-form threads to prevent galling and ensure consistent torque loading.
- 180,000 psi tensile strength; stronger than OEM and grade 8 fasteners.
- Complete kit for one motor plus moly assembly lubricant included.
- Made in the USA.
Helps prevent M8 cylinder head cracking. Made in the USA.
High-quality Viton® valve guide seals with spring-loaded wiper; made in the USA.
Complete M8 Softail chassis fastener kit with fine-thread shifter and brake hardware, plus ultra torque lube.
Precision rolled threads and wide under-head flanges provide consistent torque and reliable sealing. Hardened 12-point bolts rated to 170,000 psi for superior strength.
Precision 12-point external engine fastener kit with moly assembly lubricant. Tensile strength rated 170,000 psi. Not for '23 models with 121" VVT motors.
Precision-rolled threads reduce galling and ensure consistent torque loading.
Wide underhead flange for even load distribution and improved sealing.
170,000 psi tensile strength; stronger than OEM and grade 8.
Includes moly assembly lubricant and is manufactured to Feuling® specs by ARP®.
Not for use on '23 models with 121" VVT motors.
- Tensile strength rated at 170,000 psi for superior holding power
- Precision rolled threads to prevent galling and ensure consistent torque
- Wide underhead flange for even load distribution and improved sealing
- Includes moly assembly lubricant
- Made in the USA; not for '23 models with 121\" VVT motors
Complete 12-point external primary and transmission fastener kit with moly lubricant; high tensile strength rated at 170,000 psi.
- Precision-rolled threads for consistent torque and reduced galling.
- Wide under-head flange for even load distribution and reliable sealing.
- Tensile strength rated at 170,000 psi — stronger than OEM and grade 8.
- Includes moly assembly lubricant; made in the USA.
- Not for 2023 models with 121" VVT motors.
Durable exhaust port gasket that delivers leak-free sealing across operating conditions. Ideal for 4-stroke applications and high-temperature environments. Made in the USA.