Complete 12V Cummins towing cam package — 178/208 camshaft, 165# conical springs, retainers/locks, 12V heavy-duty pushrods, and lifters.
12V Cummins 178/208 Towing Camshaft Combo
Everything you need to upgrade your 1989-1998 Dodge 12V Cummins valvetrain in one box. This complete combo pairs Hamilton's 178/208 efficiency cam with matched valve springs, pushrods, and lifters — engineered to work together as a system.
What's Included
- 178/208 Camshaft (Stage 1 efficiency grind)
- 165# conical valve springs with retainers and locks
- 12V heavy-duty pushrods
- Lifters / tappets
Performance Benefits
- Drops EGTs 200-300°F
- Quicker turbo spool-up
- Increased low-end torque
- RPM range: Idle - 4,000 RPM
Fitment
- 1989-1998 Dodge Ram 2500/3500 12V 5.9L Cummins
Break-In Instructions
- Apply liberal assembly lube to cam and lifters before install
- Prime oil system before first start
- Disconnect fuel, crank engine in 10-second bursts until oil pressure builds
- Run engine 5 minutes at 1,200-1,500 RPM after first start
- Adjust valve lash after break-in (and after any head re-torque)
- Use a high-zinc (ZDDP) oil additive during break-in
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