Hamilton Cams 2007.5-2018 Dodge/Ram 2500/3500 6.7L Cummins Fire Ring Head Gasket Standard .046in
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.
6.7L Fire Ring Gasket – .046″ Thickness, 4.560″ Wire O.D.
Achieve a robust, leak-free seal in your 6.7L Cummins with our Fire Ring Gasket, designed to endure high boost pressures and horsepower levels. This gasket’s .046″ thickness (1.25 mm) and 4.560″ wire diameter (.105″ wire) offer enhanced stability for high-performance builds, ensuring reliable operation under extreme conditions.
Gasket & Groove Specifications
- Thickness: .046″ (1.25 mm)
- Wire O.D.: 4.560″
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Groove depth
- .039″–.040″ if cutting grooves in only one (head or block) with a .120″ radius cutter
Installation Guidelines
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Surface Preparation
- For the best seal, have your head and block machined for flatness before installation.
- Engines Under 800 HP: Cutting grooves in either the head or the block
- Engines Over 800 HP: be sure to run a high tensile fastener like the ARP 625
- A radiused cutter is strongly recommended for all groove work.
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Studs Are a Must
- Our competition gasket requires studs to achieve the clamp load needed for higher horsepower.
- Lubrication: Apply a generous amount of lube on the nut, washer, and threads to ensure even torque across all fasteners.
- Never exceed manufacturer torque limits—fasteners store substantial potential energy at full torque.
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Torque Procedure
- Initial Torque: Aim for 130 ft-lb on initial startup.
- Hot Retorque: After reaching operating temperature, retorque while the engine is still warm.
- Check Valve Lash: Retorquing compresses the gasket further, reducing valve lash. Readjust as needed.
- Final Check: Retorque at least once more before subjecting the engine to full load or high RPM.
Why Choose Our Fire Ring Gasket?
- High-Performance Sealing for extreme horsepower and boost levels.
- Reliable Design that maximizes clamp load and minimizes the risk of head-gasket failure.
- Precision Machined to ensure a perfect fit and consistent performance.
- Backed by Expertise: Engineered and tested by Hamilton, your trusted name in diesel performance.
This part fits the following vehicles:
| Years | Make & Model |
|---|---|
| 2007 | Dodge Ram 2500 |
| 2007 | Dodge Ram 3500 |
| 2018 | Ram 2500 |
| 2018 | 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.
