Parts for your 1997 Mitsubishi Pajero-Cluth slave cylinder

1997 Mitsubishi Pajero clutch slave cylinder — what it does and how to look after it

Based on technical references including the Mitsubishi Pajero NJ/NK factory workshop manual (covering 1991–1999 models), the Mitsubishi ASA electronic parts catalogue, and widely used aftermarket manuals such as the Haynes Mitsubishi Pajero/Montero 1983–2000, the 1997 Mitsubishi Pajero with a manual gearbox uses a hydraulic clutch system with a clutch master cylinder and a clutch slave cylinder mounted on the bellhousing. Automatic variants don’t use a clutch slave cylinder because they have a torque converter and no clutch pedal, so the part isn’t relevant on autos.

On a manual 1997 Pajero, the clutch slave cylinder converts hydraulic pressure from the master cylinder into mechanical movement at the clutch fork, disengaging the clutch so gears can be selected smoothly. It’s a simple, hard‑working bit of kit that cops plenty of heat and road grime, so periodic checks are smart maintenance.

• Common symptoms of a tired slave: a soft or sinking pedal, hard shifting into first or reverse, fluid dropping in the reservoir, dampness around the bellhousing, and incomplete clutch disengagement at a stop.

As part of regular servicing, it’s good practice to check for external leaks at the slave, confirm the dust boot is intact, and make sure the fluid in the shared reservoir is clean. Use the brake fluid type specified for the vehicle (typically DOT 3 or DOT 4), and replace it every 24 months or around 40,000 km to keep corrosion and seal wear at bay.

1. Before replacement, protect paintwork (brake fluid is nasty on paint) and use a proper flare‑nut spanner on the hydraulic line.
2. Unbolt the slave from the bellhousing, transfer any reusable bits (pushrod, boot) if the new unit doesn’t include them, and seat the pushrod correctly in the clutch fork.
3. Bleed the system via the slave’s bleed nipple. A simple gravity bleed can work, but a two‑person pedal bleed often gives a firmer pedal. Keep the reservoir topped up above MIN at all times.
4. After bleeding, check for leaks, confirm pedal free play per the workshop specs, and road‑test for clean engagement and disengagement.

Handy tips: if the fluid is black or you find internal corrosion, consider replacing the clutch master at the same time. Inspect the flexible clutch hose for cracking and replace if it’s perished. Off‑roaders and towing rigs benefit from more frequent fluid changes due to heat.

• Does every 1997 Pajero have a clutch slave cylinder?
  Manual‑transmission models do, automatic models don’t. On manuals, the slave sits on the gearbox bellhousing and acts on the clutch fork. Whether it’s the 2.8 TD (4M40) or the petrol V6, the hydraulic layout is the same idea: master up top, slave down on the box.
• What fluid should be used and how often should it be changed?
  Use the brake fluid type specified for the vehicle (commonly DOT 3 or DOT 4). Refreshing the fluid roughly every 24 months or about 40,000 km helps prevent internal corrosion and keeps the pedal feel consistent.
• Can a failing slave cylinder damage the clutch?
  Indirectly, yes. A leaking or weak slave can cause incomplete disengagement, which hammers synchros and makes shifts crunchy. Fluid leaking into the bellhousing can also contaminate the friction plate. Sorting the slave early protects the rest of the driveline.