Upgrade your 12V Cummins (1989-1998) with this Fire Ring Gasket, specially engineered to handle high boost pressures and extreme horsepower. With a .070 Inch thickness (1.5 mm) and .105 Inch wire at 4.560 Inch O.D., you'll gain a robust seal that stands up to the stresses of heavy-duty and performance applications.
Features and Benefits:
- Reliable High-Performance Sealing: Tested to handle extreme pressures for racing, towing, or heavy-duty use.
- Proven Durability: .070 Inch thickness ensures a tough, stable seal in boosted applications.
- Ease of Installation: Straightforward torque procedure with standard machining practices.
- Trusted Expertise: Backed by Hamilton's long-standing commitment to diesel innovation.
- Upgrade to our Fire Ring Gasket for your 1989-1998 Cummins and confidently push the limits of power.
Details:
- Sold As: Each
- Universal: No
- Vehicle Type: Truck
- Liter: 5.9L
- Fuel Type: Diesel
- Valve: 12-Valve
- Thickness: .070 Inch (1.5 mm)
- Fire Ring Wire Size: .105 Inch
- Fire Ring Outside Diameter: 4.560 Inch
- Groove Depth: .025 Inch - .026 Inch depth with a .120 Inch radius cutter
Fitment Notes:
- Fitment: 1989-1998 Dodge Ram 5.9L Cummins 12-Valve engines requiring a standard-thickness fire-ring head gasket.
- Use quality studs to ensure proper clamp load - especially with our competition gasket.
- Apply liberal lubrication on nuts, washers, and threads for even torque and a consistent seal.
- Never exceed the manufacturer's torque limits; fasteners at full torque store significant energy.
Installation Notes:
- Achieve maximum sealing by machining both the head and block - especially crucial over 800 HP.
- Under 800 HP: Cutting grooves in just the head
- Over 800, be sure to run 625 studs
- Always use a .120 Inch radiused cutter for precise, consistent groove profiles.
- Initial: Torque to 130 ft-lb before the first startup.
- Hot Retorque: After reaching operating temp, retorque while the engine is warm.
- Check Valve Lash: Gasket compression changes valve lash; readjust as needed.