Parts for your 1998 Mitsubishi Pajero-Cluth slave cylinder

1998 Mitsubishi Pajero clutch slave cylinder — purpose, fitment and servicing

Based on the Mitsubishi factory service manual for the late-’90s Pajero/Montero (Clutch section), along with the Mitsubishi ASA electronic parts catalogue and general repair guides such as Haynes/Gregory’s, the 1998 Mitsubishi Pajero with a manual transmission uses a hydraulic clutch system with a clutch slave cylinder mounted on the bell housing. Automatic-transmission Pajeros don’t use a clutch or slave cylinder, so the part isn’t relevant to autos.

On manual 1998 Pajeros, the clutch slave cylinder is a small but crucial hydraulic unit. When the driver presses the pedal, the master cylinder builds fluid pressure that pushes the slave cylinder’s piston. That movement acts on the release fork and bearing to disengage the clutch, letting gears slip in smoothly. It sits externally on the gearbox bell housing for easy access, with a bleed nipple for maintenance. If anyone’s searching for a “cluth-slave-cylinder” for this model, this is the part they mean.

As part of routine servicing, it’s smart to inspect the slave for leaks around the dust boot, check the hydraulic line for corrosion or damage, and confirm the fluid level and condition in the shared reservoir (usually DOT 3 or DOT 4 — follow the cap/FSM spec). Dark, contaminated or low fluid can cause a spongy pedal or poor disengagement. Flushing the clutch hydraulics about every two years helps keep seals healthy, which is especially worthwhile in Australia and New Zealand’s varied climates.

Common signs the slave cylinder is on the way out include a soft or sinking pedal, difficulty selecting first or reverse, clutch drag at a standstill, visible fluid weeping, or the need to top up fluid regularly. If the system won’t hold pressure after bleeding, the slave or master may be bypassing internally. On higher‑kilometre Pajeros, replacing the master and slave as a pair can be cost‑effective insurance.

Replacement is straightforward for a competent DIYer: protect painted surfaces from brake fluid, crack the line with a flare spanner, unbolt the slave, fit the new unit, reconnect the line, then bleed. Pre‑filling the new slave and bench‑bleeding can make the job cleaner. Use the correct torque values from the factory manual, and confirm the pushrod seats correctly on the fork. After bleeding, check for a consistent pedal feel and clutch bite point. A quality OEM‑spec slave cylinder and fresh fluid will restore crisp pedal action and reliable shifting for the long haul.

• Typical service actions: visual leak check, dust boot condition, line inspection, fluid flush/bleed, pedal feel check
• Fluids: DOT 3 or DOT 4 as specified by the reservoir cap/FSM

FAQs

Does a 1998 Pajero have a clutch slave cylinder?
Yes, if it’s a manual. Manual 1998 Pajeros use a hydraulic clutch with a slave cylinder on the bell housing. Automatic models don’t have or need a clutch slave cylinder.

What are the signs the slave cylinder is failing?
Think soft or sinking pedal, hard gear engagement, clutch drag, or fluid weeping around the slave. Repeatedly low fluid and a pedal that won’t firm up after bleeding are also tell‑tales.

How often should the clutch fluid be changed, and what fluid should be used?
Every two years is a good rule of thumb. Use the fluid grade on the reservoir cap or in the factory manual — typically DOT 3 or DOT 4 — and avoid mixing types unless specified compatible.