Doc's Diesel DF-370 AS69RC Transmission Filter and Pan Gasket Kit for RAM 6.7L Cummins 3500 / 4500 / 5500 (Replaces 68224232AA)

The Aisin AS69RC is the heavy-duty six-speed automatic that Ram bolts behind the high-output 6.7L Cummins in the 3500, 4500 and 5500 chassis trucks from 2013 up. It is built to move weight, and it lives on clean fluid and steady line pressure. This kit is the filter and pan gasket you need to do that service right: pull the pan, drop the old filter, set the new one, and reseal the pan in one shot. It replaces factory part 68224232AA and crosses to 515619 and TF1431.

The job itself is straightforward but messy, so plan for it. The AS69RC holds a lot of fluid, so have a wide drain pan under the truck before you loosen the pan bolts. Once the pan is down, the filter pulls straight off its seal, and the new one seats the same way. The pan gasket in this kit is a thick rubber-style gasket rather than the stiff factory cork, so warm it up and hold it to the pan with a little gasket tack or a few loosely looped zip ties while you lift the pan back into place, then start the bolts by hand and torque them to spec in a cross pattern. Refill with the correct Aisin ATF and check level at temperature.

A neglected filter is what drives AS69RC fluid temperature up and starves the valve body and clutch packs of the clean pressure they need. When shifts start feeling delayed or harsh, the fluid comes out dark, or the truck drops into a limp condition, the filter and fluid are the first things to service. Changing the filter at every fluid interval keeps pressure where it belongs and takes real wear off the internals, which on a diesel that tows heavy is basic maintenance, not an upgrade. Doc's Diesel is a US small business that specializes in Cummins service parts, and this DF-370 kit carries strong reviews for fit and quality. Confirm your year and the AS69RC application against replaced part 68224232AA before ordering.