Diagnostics / Maintenance / Filters | 2025-2026 Ram 6.7 Cummins

Performance upgrades are great, but the most important investment you can make in your diesel truck is proper maintenance and reliable diagnostics. Routine service with high-quality diesel engine oil, fuel filters, air filters, and transmission filters helps protect critical components and can deliver hundreds of thousands of miles of dependable performance when done on schedule.

Here at Diesel Power Products we feature premium diesel maintenance products designed to meet or exceed OEM specifications, including oil and filter kits, fuel system filters, DEF and emissions service components, and fluid service supplies built for modern diesel powertrains. Using the correct filtration and service parts helps reduce engine wear, maintain fuel efficiency, and prevent costly repairs.

When it’s time to troubleshoot or perform service, having the right tools makes all the difference. That’s why we also offer professional-grade diesel diagnostic tools, code readers, monitoring devices, and service equipment to help you quickly identify issues, reset fault codes, and keep your truck running at peak performance. Whether you’re performing routine service or tracking down a drivability problem, these diagnostics and maintenance tools make the job faster, easier, and more accurate.

As always, if you have any questions about which oil you're supposed to run, which filter is best for your particular setup, or anything else, do not hesitate to give us a call or send an e-mail to cs@dieselpowerproducts.com and we would be happy to assist.