Hamilton Cams 1989-1998 Dodge/Ram 2500/3500 5.9L Cummins 12V Fire Ring Head Gasket .070in
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
’89–’98 Fire Ring Gasket – .070″ Thickness, 4.560″ Wire O.D.
Upgrade your 12V Cummins (1989–1998) with this Fire Ring Gasket, specially engineered to handle high boost pressures and extreme horsepower. With a .070″ thickness (1.5 mm) and .105″ wire at 4.560″ O.D., you’ll gain a robust seal that stands up to the stresses of heavy-duty and performance applications.
Gasket & Groove Specifications
- Thickness: .070″ (1.5 mm)
- Wire O.D.: 4.560″ (.105″ wire)
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Groove depth
- .025″–.026″ depth with a .120″ radius cutter
Installation Best Practices
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Machining for Flatness
- 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″ radiused cutter for precise, consistent groove profiles.
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Studs Are Essential
- 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.
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Torque Procedure
- 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.
Why Choose Our Fire Ring Gasket?
- Reliable High-Performance Sealing: Tested to handle extreme pressures for racing, towing, or heavy-duty use.
- Proven Durability: .070″ thickness ensures a tough, stable seal in boosted applications.
- Ease of Installation: Straightforward torque procedure with standard machining practices.
This part fits the following vehicles:
| Years | Make & Model |
|---|---|
| 1989–1993 | Dodge D250 |
| 1989–1992 | Dodge D350 |
| 1994–1998 | Dodge Ram 2500 |
| 1994–1998 | Dodge Ram 3500 |
Fitment is listed by year, make and model. Some applications also depend on cab, bed, drivetrain or engine — if you are not sure, call 636-429-7020 or send us your vehicle details and we will confirm before you order.
