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2025+ Cummins Buyer's Guide
Choosing Parts for the 2025+ 6.7L Cummins
The 2025+ 6.7L Cummins introduces one of the biggest valvetrain changes in the history of the Cummins platform. Selecting the correct camshaft and supporting valvetrain components is critical for reliability, durability, towing performance and long-term engine life. Hamilton Cams engineers products specifically for the new platform including our Flat Tappet Conversion Kit, performance camshafts, valve springs, pushrods, rocker components and complete valvetrain upgrades.Why Upgrade the 2025 Cummins?
- Improve long-term valvetrain reliability
- Replace hydraulic lifter system with proven flat tappet technology
- Increase durability for towing applications
- Improve airflow and engine efficiency
- Increase turbo response
- Support future horsepower upgrades
- Reduce maintenance concerns
Supporting Valvetrain Components
Every camshaft should be matched with the proper supporting components including valve springs, pushrods, rocker arms, retainers, timing components and installation hardware. Matching the entire valvetrain ensures maximum durability and performance.Why Hamilton Cams?
Hamilton Cams specializes exclusively in Cummins valvetrain development. Every component is engineered specifically for diesel applications with decades of real-world testing and technical support.Frequently Asked Questions
Why does the 2025 Cummins need a Flat Tappet Conversion?
Hamilton developed the Flat Tappet Conversion Kit to provide a robust mechanical valvetrain solution for the newest Cummins platform while supporting reliability and future performance upgrades.Does the conversion require a new camshaft?
Yes. The conversion is designed as a complete matched system including the proper camshaft and supporting valvetrain components.Can I tow with the Flat Tappet Conversion?
Absolutely. The system was engineered with heavy-duty towing, work truck and high-mileage applications in mind.What supporting parts should I replace?
Hamilton recommends replacing the appropriate valvetrain components including springs, pushrods, rocker assemblies and related hardware depending on your application.