Parts for your 2000 Toyota Hilux surf-Transmission filter

2000 Toyota Hilux Surf transmission filter — does it have one, and should it be serviced?

Yes, the 2000 Toyota Hilux Surf fitted with the Aisin A340F 4‑speed automatic uses an internal transmission filter, which Toyota calls the “oil strainer (A/T)”. This isn’t a spin‑on external filter, it sits inside the transmission pan. Technical documentation backing this up includes Toyota’s Workshop/Repair Manual for the A340F Automatic Transmission (Unit Repair section), the Toyota Electronic Parts Catalogue (EPC) for the N185 Hilux Surf/4Runner platform (KZN185, RZN185, VZN185), and Aisin AW service literature for the A340 series—each showing an internal oil strainer and pan gasket as service parts. Depending on build/VIN, the strainer is listed under part numbers commonly seen as 35330‑60050 or 35330‑30010, with a matching pan gasket (e.g., 35168‑30010). Always confirm by VIN.

What’s it there for? The strainer screens out clutch material, metal fines and general debris so the valve body and solenoids get clean fluid. Unlike full‑media filters, Toyota’s strainer is a fine mesh that flows well but won’t trap everything forever, which is why fluid condition and pan cleanliness matter just as much as the strainer itself.

As part of routine servicing, it’s smart to drop the pan, clean the magnets, replace the pan gasket, and renew the strainer when the pan is off—especially if the vehicle tows, sees off‑road work, or the ATF is dark. There’s no hard‑and‑fast factory interval for the strainer alone, but many techs in Australia and New Zealand treat it as a 100,000–150,000 km item or “when the pan’s down”. Fresh ATF at sensible intervals keeps the strainer happier for longer.

• Watch for signs like delayed engagement, harsh or flare shifts, or burnt‑smelling/dark ATF—these are cues to inspect the pan and strainer.
• When refitting, use a new strainer O‑ring, clean the mating surfaces, and torque pan bolts evenly to low spec (around 8 N·m—check the manual for your exact model).
• Refill with the fluid type specified for the transmission build (commonly Dexron III or Toyota ATF Type T‑IV/JWS 3309—confirm via the dipstick or owner’s manual) and set the level with the engine idling, transmission at operating temp, cycling through all ranges.

Done properly, a clean pan, healthy ATF, and a fresh strainer help the A340F shift crisply and last the distance—exactly what Surf owners want from a tough touring wagon.

FAQs

Does the 2000 Hilux Surf have a transmission filter?
Yes—an internal mesh oil strainer inside the transmission pan on A340F autos. It’s a service part listed in Toyota’s EPC and covered in the A340F repair manual procedures.

How often should the transmission filter be replaced?
There’s no strict factory kilometre interval for the strainer alone. Many workshops replace it whenever the pan is removed or around 100,000–150,000 km, sooner if the ATF is dirty, the vehicle tows, or shifting issues are present.

What ATF should be used and how much does it take?
Use the ATF type specified for your exact build (often Dexron III or Toyota ATF Type T‑IV). A pan drop typically refills around 3–4 litres, a full exchange is higher. Always confirm spec and capacity by VIN and follow the factory level‑setting procedure.