Product Overview

The transmission filter, OEM number 35330-0W021, is the automatic transmission strainer fitted to the U341E transmission used across a wide range of Toyota and Scion models, including the Toyota Celica, Corolla, Echo, Matrix, and Yaris, and the Scion xA, xB, and xD, spanning model years 2000-2019. This part has superseded 35330-0W020 and 35330-20020, and since it covers 57 documented vehicle applications across two brands, it's a genuinely high-turnover part for anyone stocking Toyota transmission service items.

A clogged or failing filter typically shows up as delayed or rough gear shifts, transmission slipping, or a transmission that overheats more easily than normal. GSK Auto manufactures this filter to OEM specification at our Ningbo, China facility, with every unit tested before packing. We supply at wholesale volume with low MOQ and support private label packaging, with our team available to confirm fitment before shipping.

Replacement OEM Numbers

Cross-Reference OEM Number

35330-0W020, 35330-20020, 35330-52010

(Confirm against your VIN or chassis code before ordering - this filter does not include the required O-ring (90080-30077), so it's worth confirming your customer has that on hand for a complete service, and double-checking the exact model and transmission code before ordering at volume.)

What Is a Transmission Filter?

Function: The transmission filter removes debris, metal particles, and contaminants from automatic transmission fluid as it circulates, protecting internal transmission components like the valve body and clutch packs from abrasive wear.

Working Principle: Transmission fluid is drawn through the filter's strainer media before reaching the transmission's internal hydraulic circuits, trapping contaminants while allowing clean fluid to continue circulating through the valve body and other precision-machined components.

Importance: Clean transmission fluid is essential for smooth, reliable shifting, since contaminated fluid can clog small hydraulic passages in the valve body, leading to delayed or erratic shifts, and in severe cases, contributing to premature transmission wear or failure.

Common Failures & Signs: Filter media becoming clogged with accumulated debris and metal particles over time. Delayed, rough, or erratic gear shifts. Transmission slipping, particularly noticeable under acceleration. Transmission running hotter than normal due to restricted fluid flow.

Key Features

OEM-standard fitment - matches factory filter dimensions and mounting configuration for the 35330-0W021 application.

Precision manufacturing - strainer media sized for effective contaminant capture without restricting fluid flow.

Long service life - built to handle a full service interval between transmission fluid changes.

Excellent fitment - direct replacement, no modification required.

Corrosion resistance - construction resists transmission fluid and heat exposure.

Reliable performance - consistent filtration matching factory specification.

Benefits

Importers - high-turnover part covering 57 documented applications across Toyota and Scion, simplifying inventory.

Wholesalers - steady demand from some of the highest-volume Toyota compact platforms.

Repair Shops - OEM-spec fitment supports quick, routine transmission service work.

Distributors - private label packaging available for building a branded catalog.

End Customers - smoother shifting and protected transmission components between service intervals.

Packaging & Shipping

Standard export packaging, sized for a filter component. Customized packaging available for distributor branding. OEM-style and private label printing on request. Container loading handled directly, with mixed-SKU consolidation for smaller orders. Worldwide shipping to Europe, North America, South America, the Middle East, Africa, and Southeast Asia.

Why Choose GSK Auto

GSK Auto manufactures factory-direct, keeping pricing tied to production cost. This filter is built to OEM specification and tested before packing. We support low MOQ, private label packaging, and worldwide shipping, with our technical team available to confirm fitment before you order.

Call to Action

Sourcing transmission filters for Toyota Celica, Corolla, Echo, Matrix, Yaris, or Scion vehicles? Contact GSK Auto for a wholesale quote, catalog, or OEM/private label cooperation.