Parts for your 2008 Nissan Navara-Transmission filter

2008 Nissan Navara transmission filter: is it fitted and does it matter?

Based on the Nissan D40 Navara/Frontier Service Manual (Automatic Transmission section for the Jatco RE5R05A), Jatco RE5R05A technical literature describing an internal ATF “oil strainer”, and major aftermarket catalogues that list filter kits for the D40 automatic, the 2008 Nissan Navara with an automatic transmission is fitted with a transmission filter/strainer inside the sump. Manual models don’t use a transmission filter.

For the 2008 Navara auto, the transmission filter (more accurately a fine strainer) sits in the pan and protects the valve body and pump by catching clutch material and debris as the ATF circulates. It helps keep shifts smooth, pressure stable and wear to a minimum. Even though Nissan often calls these units “filled for life”, Australian and New Zealand conditions—heat, towing, off-road dust, and stop–start—are tougher than lab tests, so preventative servicing is smart.

As part of a sensible service regime, many workshops recommend replacing the filter and pan gasket and refreshing the ATF every 60,000–80,000 kilometres (or around four years), sooner if the ute tows, sees beach work, or spends time in high ambient temps. During the job, the pan is removed, magnets are cleaned, the strainer is swapped, and the pan is refitted with the correct torque on fasteners to avoid warping. Fresh, specification-correct ATF is added—use the Nissan-approved fluid for the RE5R05A (commonly Matic J or Matic S, check the owner’s manual or build data). The level is then set using the factory temperature and level-check procedure, accuracy here really matters for shift quality and longevity.

Drivers who notice harsher shifts, delayed engagement when selecting Drive or Reverse, shudder on light throttle, or ATF that smells burnt should book the Navara for a check. Catching a restricted strainer early can prevent glaze, slip, and expensive repairs.

Quick tips owners appreciate:

• Stick to shorter intervals if the vehicle tows, hauls, or works in sand or heat.
• Always replace the pan gasket and clean the magnets—don’t just top up fluid.
• Confirm the exact ATF spec by VIN or service manual, avoid “universal” fluids unless they explicitly meet the Nissan spec.

Note: Manual 2008 Navaras don’t have a transmission filter, they simply need the correct gear oil changed at the recommended intervals.

Do all 2008 Nissan Navaras have a transmission filter?

No. Only the automatic D40 models have an internal ATF strainer inside the pan. Manual Navaras don’t use a transmission filter, they rely on scheduled gear oil changes instead.

How often should the transmission filter be replaced in Australia or New Zealand?

A practical interval is every 60,000–80,000 km or about four years, with fluid service at the same time. If the ute tows, does off-road or beach work, or operates in high heat, shorten the interval. Follow the factory procedure for fluid level and temperature.

Which ATF should be used in a 2008 Navara auto?

Use Nissan-approved ATF for the RE5R05A—typically Matic J or Matic S depending on build. Check the owner’s manual or confirm by VIN. Avoid generic fluids unless they clearly state compliance with the required Nissan spec.