Parts for your 1987 Mitsubishi Pajero-Radiator hose

1987 Mitsubishi Pajero Radiator Hose

Radiator hoses are absolutely fitted to the 1987 Mitsubishi Pajero. Technical sources including the Mitsubishi Factory Service Manual for first‑generation Pajero/Montero (circa 1983–1991), the Gregory’s Service and Repair Manual for Pajero (1983–1996), and Mitsubishi’s ASA parts catalogue list upper and lower radiator hoses (as well as heater hoses) for both petrol and diesel engines used in 1987. So yes—this is a relevant, replaceable part on that model.

On a 1987 Mitsubishi Pajero, the radiator hose does the simple but vital job of moving coolant between the engine and the radiator under the bonnet. The upper hose takes hot coolant from the engine to the radiator, the lower hose returns cooled fluid back into the block. Without sound hoses, the cooling system can’t keep temperatures in check, and that’s when overheating, warped heads, or a cooked gasket can ruin a weekend trip.

Age, heat cycles, oil contamination, and ozone cause hoses to harden, crack, or go spongy. For an older 4G54 petrol or 4D56 diesel Paj, it’s smart to treat hoses as a service item: plan on replacement every 4–6 years or 80,000–100,000 kilometres, sooner if there are signs of wear. While at it, fresh clamps and the correct coolant mix do wonders for long-term reliability.

• Inspect at every service: look for swelling, cracks, glazing, soft spots, and leaks at the clamps.
• Squeeze test when cold: any mushy sections or “crunchy” sounds mean the internal reinforcement may be failing.
• Check for oil misting: oil degrades rubber quickly—fix leaks and replace affected hoses.
• Replace in pairs: upper and lower hoses together, don’t forget heater hoses if they’re the same age.
• Use quality EPDM hoses that match your engine code, keep spring clamps or fit good worm-drives and retension after a heat cycle.
• Refill with the correct coolant mix (typically 50/50 ethylene glycol demineralised water unless your manual specifies otherwise) and bleed air properly.

Fitting is straightforward: drain coolant, remove old clamps, twist to break the seal, clean the necks, fit the new hose fully home, and position clamps behind the bead. After a decent drive, recheck for weeps and top up the overflow bottle. Keeping the 1987‑Mitsubishi‑Pajero radiator-hose fresh is cheap insurance against roadside drama.

Popular questions about 1987 Mitsubishi Pajero radiator hoses

How often should the radiator hoses be replaced on a 1987 Pajero?
For an older Pajero, plan on 4–6 years or 80,000–100,000 km. Harsh heat, towing, or lots of dirt-road work can shorten that. If there’s any swelling, cracking, or soft spots, replace sooner.

Can silicone radiator hoses be used on a 1987 Pajero?
Quality silicone hoses handle heat well and can last a long time, but they need proper lined clamps and must be compatible with your coolant. For stock setups, good EPDM rubber hoses are perfectly reliable and often a neater fit.

What hose sizes does the 1987 Pajero use?
Sizes vary with engine (e.g., 4G54 petrol vs 4D56 diesel) and market. Expect roughly 32–40 mm ID for main hoses, but always check your engine code and measure the radiator and thermostat necks or refer to a workshop manual/parts catalogue.