Product Description
The Hamilton Cams 07-C-178/208 is a proven street/tow cam that broadens torque, drops EGT 200–300°F, and improves spool on 1989–2018 Cummins 5.9L/6.7L (12V & 24V). It’s a direct-fit flat-tappet profile and pairs best with Hamilton tappets and 103# springs for durability and valve control.
Fitment
- 1989–1998 Dodge Ram 2500/3500 5.9L Cummins (12V)
- 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins (24V VP44)
- 2003–2007 Dodge Ram 2500/3500 5.9L Cummins (24V Common Rail)
- 2007.5–2018 Ram 2500/3500/4500/5500 6.7L Cummins (24V)
Tech notes: Use matched Hamilton 1.45" tappets or DLC 1.45" billet tappets and 103# valve springs. Always use a proper zinc break-in additive.
What’s Included
- Hamilton 07-C-178/208 camshaft
Recommended / Related Parts
- Hamilton 1.45" Tappets Set: 07-T-001 or DLC Billet Tappets: 07-T-002
- Hamilton 103# Valve Springs (24V): 07-S-003
- Hamilton Zinc Additive for break-in: 07-C-001
- Hamilton Bronze Cam Retainer (’89–’07 5.9L): 07-C-RETAINER
- OEM Cam Gear: Cummins 5273413 | OEM Woodruff Key: Cummins 3902332
- Cam Bearing Set (modified builds): Industrial Injection PDM-CAM7
- Cam Gear Retainer & Thrust Plate: Scheid 1054015012 & Scheid 4015011
- Rear Cam / Adapter Seal: Interstate-McBee M-4945701
Cross-Reference / Alternatives
- Hamilton 188/220 (cast): 07-C-188/220
- Hamilton 188/220 (steel): 07-C-188/220S
- Hamilton 220/240 (steel): 07-C-220/240
- Hamilton 178/208 Combo (24V kit): 07-CC-24V178
- Hamilton 178/208 Combo (12V kit): 07-CC-12V178
FAQ
How does the 178/208 drive on a daily/tow truck?It maintains smooth street manners with quicker spool and a broader torque curve versus stock, ideal for towing and tuned daily drivers.
Do I need new tappets and springs?
Yes—Hamilton warrants cams only when used with their tappets and appropriate valve springs. We recommend 07-T-001 or 07-T-002 plus 07-S-003 on 24V builds.
What break-in oil should I use?
Use a high-zinc break-in oil with Hamilton 07-C-001 zinc additive, then follow your tuner’s oil recommendations after the break-in period.
Any small parts I shouldn’t forget?
We suggest a new cam gear, key, thrust plate, and rear cam seal during installation.
