Parts for your 2007 Toyota Hilux surf-Transmission filter

2007 Toyota Hilux Surf transmission filter: what it does and when to service it

Yes, the 2007 Toyota Hilux Surf uses a transmission filter — technically an internal oil strainer that sits inside the automatic transmission sump. Toyota’s factory literature for the N210-platform Hilux Surf/4Runner automatics (A750F 5‑speed and A340/A343 4‑speed) shows an “Oil Strainer, AT” fitted under the pan, alongside the pan magnets. Toyota’s Electronic Parts Catalogue lists this part for the Surf (e.g., A750F strainer PN 35330‑60050, A340/A343 strainer PN 35330‑30050), and Aisin service data for the A750 series also illustrates the internal screen-type filter. These technical sources make it clear the Hilux Surf does indeed run a transmission filter/strainer.

In practical terms, this strainer screens out clutch material and fine debris so the valve body and solenoids keep working smoothly. It’s not a spin‑on external filter — it’s a flat, plastic/metal screen unit that’s only accessible once the transmission pan is removed. That’s why owners often hear the gearbox described as “sealed”, there’s usually no dipstick, and level checks are done via the overflow plug at a specified fluid temperature.

For servicing, the advice is straightforward: during an ATF service where the pan is dropped, clean the pan and magnets, replace the strainer if it shows discolouration, sludge build‑up, or any damage, and refit with a new pan gasket and O‑ring. Many workshops will replace the strainer as preventative maintenance around 150,000–200,000 km, sooner if the vehicle tows, sees beach work, or long hot trips across Aus and NZ. If the fluid is very dirty or there are shift issues, replacement at the time of a full service makes good sense.

Fluid choice depends on the transmission fitted: most A750F boxes specify Toyota ATF WS, while many A340/A343 4‑speeds specify Toyota ATF Type T‑IV. Always confirm on the build plate/manual or by VIN with a dealer, because mixing fluids can cause shift flare or harsh engagement. After refilling, the correct level is set via the overflow plug at the factory temperature window using a scan tool or thermometer — a bit fiddly, but worth doing right.

• Check ATF condition every 40,000–60,000 km, drain-and-fill intervals vary with use.
• Drop the pan and inspect/replace the strainer during major services or if contamination is present.
• Use new gaskets/seals and keep the pan magnets spotless.

Technical references: Toyota Repair Manual (N210 platform, A750F/A340 sections: Oil Strainer/ATF Pan Service), Toyota Electronic Parts Catalogue entries for “Oil Strainer, AT” on 2005–2009 Hilux Surf/4Runner, and Aisin A750E/F service documentation confirming the internal screen filter design.

FAQs

Does a 2007 Hilux Surf have a transmission filter?
Yes. It uses an internal oil strainer inside the transmission pan. It’s not an external screw-on filter, the pan has to come off to inspect or replace it.

How often should the transmission filter be replaced?
There’s no strict time-based interval from Toyota for the strainer, but many techs suggest inspecting it whenever the pan is removed. Replace it if there’s visible contamination, after heavy use (towing, dunes), or around 150,000–200,000 km as preventative maintenance.

Which transmission fluid does it take — WS or T‑IV?
It depends on the gearbox. Most 5‑speed A750F units use Toyota ATF WS, many 4‑speed A340/A343 units use Type T‑IV. Check the vehicle’s build plate or service manual, or confirm by VIN. Using the wrong fluid can affect shift quality and longevity.