Product Description
The HAMILTON CAMS 07-CC-12V178 CAST 178/208 CAMSHAFT COMBO is Hamilton's ultimate towing and efficiency camshaft package for the legendary 1989–1998 Cummins 5.9L 12-valve engine. Designed for daily drivers, tow rigs, work trucks, RV haulers, and high-mileage highway applications, this complete valvetrain package delivers improved low-end torque, quicker turbo spool-up, reduced exhaust gas temperatures, and enhanced fuel economy while maintaining excellent drivability.
Built around Hamilton's proven 178/208 camshaft profile, this package upgrades every major valvetrain component with matched performance parts engineered to work together. The short duration and wide lobe separation angle create minimal overlap, helping reduce in-cylinder EGR effects while maximizing low-RPM airflow and turbocharger response. This combination has made the 178/208 one of the most popular towing camshaft upgrades available for the 12-valve Cummins platform.
Whether you're towing heavy trailers, operating at high elevations, or simply looking for improved drivability and fuel efficiency, the 07-CC-12V178 delivers exceptional results. Many owners report EGT reductions of 200–300°F, improved throttle response, and measurable fuel economy gains while maintaining factory-like reliability.
FEATURES
- Complete Hamilton towing and efficiency camshaft combo
- Designed specifically for 1989–1998 Cummins 5.9L 12-valve engines
- 178° intake / 208° exhaust duration @ .050"
- Improves low-RPM torque and towing performance
- Quicker turbocharger spool-up and throttle response
- Helps reduce EGTs by 200–300°F
- Improves fuel economy and overall efficiency
- Includes heavy-duty pushrods
- Includes valve springs, retainers, and locks
- Includes lifters/tappets
- Excellent for towing, daily driving, and work truck applications
- Made in the USA
FITMENT
- 1989–1993 Dodge Ram 2500/3500 5.9L Cummins 12V (VE Pump)
- 1994–1998 Dodge Ram 2500/3500 5.9L Cummins 12V (P7100 Pump)
- Fits manual and automatic transmission applications
- Fits 2WD and 4WD trucks
WHAT'S INCLUDED
- Hamilton 178/208 Cast Camshaft
- Heavy-Duty Pushrods
- 155–165 lb Valve Springs
- Retainers and Locks
- Lifters / Tappets
CROSS-REFERENCE AND RELATED PRODUCTS
- Hamilton 07-C-178/208 Cast Camshaft
- Hamilton 07-CC-12V188 Cast 188/220 Camshaft Combo
- Hamilton 07-S-001 Beehive Valve Springs
- Hamilton 07-S-002 Dual Valve Spring Kit
- Hamilton 07-P-002 Extreme Duty Pushrods
- Hamilton 07-T-001 1.45" Tappets
- Hamilton 07-T-002 DLC Billet Tappets
- Hamilton 07-C-001 Zinc Break-In Additive
SPECIFICATIONS
- Manufacturer: Hamilton Cams
- Part Number: 07-CC-12V178
- UPC: 857340008056
- Camshaft Material: Cast Iron
- Duration @ .050": 178° Intake / 208° Exhaust
- RPM Range: Idle–4,000 RPM
- Valve Springs Included: Yes
- Retainers Included: Yes
- Locks Included: Yes
- Pushrods Included: Heavy-Duty
- Lifters Included: Yes
- Engine Compatibility: Cummins 5.9L 12-Valve
- Application: Towing, Daily Driving, RV Hauling, Highway Use
- Country of Origin: USA
FAQ
What is the primary purpose of the Hamilton 178/208 combo?
The 178/208 combo was specifically designed for towing, fuel economy, low-RPM torque, and overall efficiency. It is Hamilton's most popular towing camshaft package.
How much can EGTs decrease with this camshaft?
Many installations report EGT reductions of approximately 200–300°F due to improved airflow and cylinder scavenging characteristics.
Will this camshaft improve fuel economy?
Yes. Many owners report gains of 1–3 MPG depending on vehicle setup, driving style, and towing conditions.
What comes in the Hamilton 07-CC-12V178 combo kit?
The kit includes the 178/208 camshaft, heavy-duty pushrods, valve springs, retainers, locks, and lifters/tappets for a complete valvetrain upgrade.
Is this camshaft suitable for stock turbochargers?
Absolutely. The 178/208 profile works exceptionally well with stock turbochargers and also complements larger single turbocharger setups by improving spool-up and low-end airflow.
Is this a better towing cam than the 188/220?
Yes. For dedicated towing, daily driving, and efficiency-focused builds, the 178/208 profile is generally preferred. The 188/220 profile is intended for stronger mid-range power and higher-performance applications.
