Product Description
The Hamilton Cams 07-CC-12V188 is a proven 188/220 “hot street” camshaft combo for 1989–1998 5.9L Cummins 12-valve builds. It broadens mid-range, drops EGTs ~200–300°, and supports higher RPM with upgraded valvetrain components while keeping daily-drive manners when paired with the right turbo and tuning.
Fitment
- 1989–1998 Dodge Ram 2500/3500, 5.9L Cummins 12-valve (VE & P7100), all drivetrains
- Works with OEM cam core architecture; designed for street/tow, sled pull stock classes, and weekend drag use
- Typical operating range: ~1,700–4,500 RPM (with supplied springs and proper setup)
What’s Included
- Hamilton 188/220 camshaft (cast)
- Hamilton 165 lb conical/beehive valve springs with retainers and locks
- Hamilton heavy-duty pushrods
- Lifters/tappets
Recommended Supporting Parts (add during install)
- Hamilton 165 lb Beehive Valve Springs (12V): 07-S-001
- Hamilton Extreme Duty Pushrods (12V): 07-P-002
- Hamilton 1.45" Tappets (lifters): 07-T-001 or DLC Billet 07-T-002
- Hamilton Bolt-On Cam Retainer: 07-C-002 or Bronze Retainer 07-C-RETAINER
- Hamilton Zinc Additive (cam break-in): 07-C-001
Cross-Reference / Alternatives
- Same Grind – Cam Only (Cast): 07-C-188/220
- Same Grind – Cam Only (Steel): 07-C-188/220S
- 24-Valve version of this combo (98.5–18): 07-CC-24V188
- Milder 12V combo (178/208): 07-CC-12V178
FAQ
What powerband and gains can I expect?Expect a stronger mid-range and faster spool with usable pull from ~1,700–4,500 RPM when paired with the included springs and a properly sized turbo. Many builds see 200–300° EGT reduction versus stock profiles.
Do I need the included springs, pushrods, and lifters?Yes—this combo is engineered as a system. The 165 lb beehives control valve float to ~4,500 RPM, the HD pushrods prevent deflection, and new lifters protect the cam during break-in and high load.
Will this work for towing and daily driving?Yes. The 188/220 is a popular street/tow grind that improves drivability when paired with the right turbo and fueling. It’s also proven in stock-class sled pulling and weekend drag setups.
Any install tips?Measure piston-to-valve clearance, follow cam break-in with a zinc additive, and verify lash after any head re-torque. Consider a bolt-on retainer to control cam endplay at higher RPM.
