AW55-50SN [00-UP] Automatic Transmission Filter

Keeping the Automatic Transmission Filter in good condition is one of the most direct ways to protect the hydraulic system in an AW55-series automatic transmission, and this listing gives you the exact replacement Automatic Transmission Filter for the AW55-50SN, AW55-51SN, and RE5F22A units covering 2000 and up. Unlike a kit that bundles multiple components, this is a single-piece listing, which makes it the right choice when the rest of your sealing hardware is still serviceable and only the Automatic Transmission Filter needs to come out.

The Automatic Transmission Filter in an AW55 transmission is positioned at the pump pickup, meaning every drop of fluid that feeds the clutch circuits, the valve body, and the torque converter passes through it first. When that Automatic Transmission Filter becomes saturated with debris and varnish, flow volume drops, line pressure becomes inconsistent, and shift feel suffers noticeably. Swapping the Automatic Transmission Filter during a fluid service or as part of a broader overhaul restores the intended flow path without introducing unnecessary variables.

This listing contains one Automatic Transmission Filter. It does not include a pan gasket, an external Automatic Transmission Filter gasket, O-rings, friction plates, steel plates, or any other sealing or friction component. If your service requires those parts, they need to be sourced separately before the job starts. Showing up to a transmission job one part short costs more time than verifying the order beforehand.

To confirm fitment, check the transmission identification code directly on the unit. The code must read AW55-50SN, AW55-51SN, or RE5F22A. Year and engine alone do not determine which transmission is installed, so always cross-reference the code. The item weighs 1 lb. REMCO has been working in automatic transmission parts since 1991, and each order is checked against its part listing before it ships.

• A clogged or degraded Automatic Transmission Filter restricts fluid flow and accelerates wear on clutch packs and valve body components, shortening transmission service life. Replacing it at the correct interval keeps fluid circulation consistent and pressure stable.
• This listing is for the Automatic Transmission Filter only. It does not include a gasket, pan gasket, O-rings, friction discs, steels, or any sealing components. If you need those parts, verify separately before ordering to avoid an incomplete repair.
• The AW55 Automatic Transmission Filter sits in the fluid path before the pump pickup, so a restricted unit starves the entire hydraulic circuit. Installing a fresh Automatic Transmission Filter restores proper flow volume and supports consistent line pressure across all shift events.
• One Automatic Transmission Filter unit, weight 1 lb. Fits the AW55-50SN and AW55-51SN transmissions as well as the RE5F22A. Application range covers 2000 and up. No additional pieces are included in this listing.
• Before ordering, confirm the exact transmission code stamped on your unit matches AW55-50SN, AW55-51SN, or RE5F22A. Year of vehicle and engine size alone are not sufficient to verify fitment for this Automatic Transmission Filter.

What's in the box

• 1 x Automatic Transmission Filter, AW55-50SN

Compatible vehicles

• Fits C30 [07-13], C70 [01-09], S80 [04-06].