Automatic Gearbox Oil Filter Assembly

This transmission oil filtration unit is a must-have service part for Nissan automatic/CVT drivetrains. It keeps the fluid clean by trapping clutch dust, metal fines, and varnish debris before they can circulate through the valve body and pump. Clean fluid means smooth shifting, stable line pressure, and longer gearbox life ✅

Why This Part Is Needed

During normal driving, friction materials wear and tiny particles mix into the oil. Heat also breaks down fluid additives over time. This filter assembly is designed to protect precision hydraulic passages and solenoids, helping the transmission respond correctly under load and at low speeds.

How It Works

Fluid is pulled through the filter media as the pump draws oil from the pan. The element screens contamination while maintaining flow, so lubrication and hydraulic control stay consistent. A proper seal prevents bypass and keeps pressure where it should be ?

What Happens If It’s Clogged or Damaged

A restricted or broken filter can cause delayed engagement, slipping, harsh shifts, overheating, whining pump noise, and even fault codes. In severe cases, dirty oil can score valves and damage the pump, leading to expensive transmission repairs ⚠️