Doc's Diesel Transmission Filter Kit for 6.7L Cummins Ram 2500/3500 (2007.5–2024) — OEM-fit, restores fluid flow

Doc's Diesel Trans Filter Kit is a direct-fit replacement service kit engineered to restore transmission fluid flow and help maintain consistent shifts in 6.7L Cummins RAM 2500 and 3500 trucks with the 68RFE 4WD transmission.

If your RAM with the 6.7L Cummins engine is showing transmission symptoms like delayed or harsh shifting, dark fluid, or occasional limp mode, a clogged or degraded transmission filter can be a common contributor. This kit is built to match the OEM fitment for 68RFE-equipped Ram 2500 and 3500 trucks and is intended for model years from 2007.5 through 2024, helping technicians and DIYers restore proper line pressure and fluid flow during routine service.

Which RAM models and years does this filter kit fit?

This transmission filter kit is designed specifically for Ram 2500 and 3500 trucks equipped with the 6.7L Cummins engine and the 68RFE 4WD transmission. It covers the 2007.5–2024 model range noted by fitment guidance. Always verify exact chassis, drivetrain and year with the fitment card on the product page before ordering.

• Compatible with Ram 2500 and 3500 6.7L Cummins diesel engines
• Engineered for the 68RFE automatic transmission with 4WD
• Broad coverage: 2007.5 through 2024 model years (confirm with fitment tool)

How will replacing the transmission filter affect driving and performance?

A fresh filter helps maintain correct fluid circulation and pressure in the transmission, which supports smoother, more consistent gear changes. Regular replacement as part of fluid service reduces debris buildup that can contribute to harsher shifts or overheating.

• Improves hydraulic flow to valves and clutch packs
• Helps reduce shift delays and rough engagement
• Can lower operating temperature by restoring proper fluid volume and circulation

When should I replace the filter and what symptoms indicate it’s necessary?

Replace the transmission filter at each scheduled fluid change or sooner if you notice drivability issues. Typical service signs include a darker-than-normal transmission fluid, shifts that feel delayed or harsh, or the vehicle entering limp mode—symptoms that can indicate restricted flow from a clogged filter.

• Dark or burned-smelling transmission fluid
• Delay or harshness during upshifts and downshifts
• Intermittent limp mode or overheating warnings

What does the kit contain and how does it support routine maintenance?

The Doc's Diesel Trans Filter Kit is supplied to match OEM replacement needs for the 68RFE transmission, enabling technicians and DIY mechanics to perform a full filter service. Using a proper fitment-specific kit helps preserve line pressure and prolong internal component life when paired with regular fluid changes.

• Fitment-specific filter elements and seals sized for 68RFE assemblies
• Designed for service during scheduled fluid replacement
• Helps maintain shift consistency and reduce wear on internal parts

Who is this for? This kit is aimed at RAM owners, fleet managers, and professional technicians who maintain 6.7L Cummins trucks with 68RFE 4WD transmissions and want an OEM-style filter replacement for routine service or to address shift-related symptoms. If you perform your own maintenance or manage service intervals for multiple trucks, this Doc's Diesel kit gives a direct-fit component to keep transmission fluid flowing as designed—just confirm fitment for your exact year and drivetrain before ordering.