Parts for your 1987 Mitsubishi Pajero-Starter motor

1987 Mitsubishi Pajero starter-motor: what it does and how to look after it

For the 1987 Mitsubishi Pajero, a starter-motor is absolutely fitted and relevant. Factory documentation in the Mitsubishi Pajero/Montero Workshop Manual for the first-generation L040/L141 platform (1982–1991), the Mitsubishi ASA electronic parts catalogue, and widely used references like the Haynes Pajero/Montero manual and Bosch starter catalogues all list starter assemblies and solenoids for the 2.6L 4G54 petrol and 2.5L 4D56 diesel engines of that era. In other words, every ’87 Pajero relies on a 12‑volt starter-motor to crank the engine.

This starter-motor’s job is simple but vital: when the key’s turned, the solenoid pushes the drive gear into the flywheel ring gear and the electric motor spins the engine fast enough to fire. On these Pajeros, the unit is typically a robust, reduction-gear design in the 1.4–2.0 kW range, built to handle the heavier compression of diesel variants as well as the petrol models.

As part of routine servicing of a 1987 Pajero, the starter-motor deserves a quick once-over. It doesn’t have a fixed replacement interval, but age, heat and dust take a toll. A clean power supply is everything, so start with the basics—battery health, cable condition and earthing—before blaming the starter itself. If removal is needed, many units respond well to a tidy-up: brushes, bearings/bushes and solenoid contacts can often be renewed, bringing cranking performance back to life without breaking the bank.

• Common signs of starter trouble: single click with no crank, slow or laboured cranking, intermittent cranking, grinding noises, or visible smoke/heat soak after a hot shutdown.
• Simple checks before replacement: test battery CCA (diesels usually want a higher-CCA battery), inspect and clean terminals, check engine and chassis earth straps, and measure voltage drop on the positive and ground sides during crank.

If replacement’s on the cards, matching by engine code (4G54 petrol or 4D56 diesel), tooth count and mounting pattern is key. Quality remanufactured or new units from reputable suppliers are worth the extra coin. When the starter is out, it’s smart to inspect the flywheel ring gear for chipped teeth. Refit with clean mounting faces, correct fastener torque per the workshop manual, and confirm cable routing is tidy and heat-protected. A fresh relay and good heat shielding can improve reliability, especially in hotter Aussie and Kiwi climates.

Technical sources consulted: Mitsubishi Pajero/Montero Workshop Manual (L040/L141, 1982–1991), Mitsubishi ASA electronic parts catalogue, Haynes Mitsubishi Pajero/Montero 1983–1996, and Bosch Automotive Starter Motor application catalogues for period Mitsubishi engines.

Popular questions

What starter-motor fits a 1987 Mitsubishi Pajero?
Fitment depends on engine: 4G54 petrol and 4D56 diesel starters differ in power rating and sometimes pinion tooth count. The safest bet is to match by VIN/engine code, mounting flange, clocking, and connector style. A reputable supplier will cross-check these details and confirm the correct replacement or rebuild kit.

Why does my 1987 Pajero just click but not crank?
A single click usually points to low battery voltage, corroded terminals, poor earthing, or worn solenoid contacts. Load-test the battery, clean terminals, check voltage drop on both the positive and ground sides while cranking, and inspect the starter relay. If voltage is good at the starter but it won’t spin, the solenoid or brushes may be due.

Can the starter-motor on an ’87 Pajero be rebuilt at home?
Yes, many can. With the unit on the bench, inspect brushes, commutator, bearings/bushes and solenoid contacts. Brush kits and contact sets are common for these starters. A careful clean, light lubrication where specified, and reassembly to manual specs can yield a starter that cranks like new. If the armature or reduction gears are badly worn, consider a quality reman or new unit.