Parts for your 2013 Toyota Mark x-Transmission filter

2013 Toyota Mark X transmission filter — what it is and when to service it

Referencing Toyota’s technical material, the 2013 Toyota Mark X (GRX130/133) uses Aisin 6‑speed automatic transmissions (A960E for most 2.5L models and A760E for many 3.5L variants). Both units are documented in the Toyota Repair Manual (TIS) with procedures to remove and install the “transmission oil strainer sub‑assembly,” and the Toyota Electronic Parts Catalogue lists that strainer for these model codes. Aisin service literature for the A960E/A760E also depicts a pan‑mounted suction strainer. So yes — this Mark X does have a transmission filter (oil strainer) and it’s a relevant, serviceable part.

On the 2013 Mark X, the transmission filter sits inside the sump and protects the valve body and clutches by catching fine debris. It works alongside the pan magnets to keep swarf out of the delicate hydraulics, supporting smooth shifts and long gearbox life. Toyota labels these WS (World Standard) units “sealed”, meaning there’s no routine filter change in the factory service schedule. Even so, many workshops in Australia and New Zealand treat the filter as a service item when the pan is off, or if the fluid is being renewed after high kilometres or heavy use.

Good practice for a service on this gearbox is a drain and fill with Toyota ATF WS, dropping the pan to clean the magnets and replace the filter if there’s noticeable debris or the car has racked up big kilometres. Expect roughly 3–4 litres on a drain and fill, with total capacity around 7–8 litres depending on the exact transmission. The level set procedure is temperature‑controlled via the overflow plug, so a scan tool or thermometer is handy. Always use WS fluid — mixing fluids can cause shift issues.

Signs it’s time to get the pan down and consider a new strainer include:

• Harsh or delayed engagement, flaring between gears, or shudder under light throttle
• Dark, burnt‑smelling ATF, or a pan full of fine metallic fuzz beyond the normal light smear on the magnets
• History of towing, hot running, or stop‑start city slog

When the pan’s off, fit a new strainer, renew the pan seal (gasket or Toyota FIPG as specified), clean the magnets, and torque fasteners correctly. If the old fluid is very dirty, consider a staged series of drain‑and‑fills rather than a single full exchange to avoid shocking the system. If in doubt, confirm the trans code on the vehicle ID plate and follow the TIS procedure for that unit.

FAQs

Does the 2013 Mark X actually have a serviceable transmission filter?
Yes. Toyota’s Repair Manual procedures for the A960E/A760E include removing and installing the transmission oil strainer sub‑assembly, confirming it’s a serviceable internal filter accessed when the sump is removed.

How often should the filter and fluid be changed?
Toyota doesn’t list a fixed interval for the filter on WS “sealed” units. Many AU/NZ workshops recommend checking the pan and filter around 80,000–120,000 km, or sooner with towing, hill work, or hot city driving. If the pan is off for any reason, replacing the strainer is sensible insurance.

Which fluid should be used and is special gear required?
Use Toyota ATF WS only. Level is set via the overflow plug at a specific fluid temperature, so a scan tool or IR thermometer is recommended. A clean workspace, torque wrench, and fresh pan sealant/gasket round out the kit.