Parts for your 1993 Mitsubishi Pajero-Brake wheel cylinders

1993 Mitsubishi Pajero brake wheel cylinders

Based on factory and aftermarket technical references, brake wheel cylinders are relevant to many 1993 Mitsubishi Pajero models. The NH/NJ series commonly ran rear drum brakes on lower and mid trims, which use hydraulic wheel cylinders (see Mitsubishi Pajero NH/NJ Factory Service Manual, 1991–1996, Haynes Mitsubishi Pajero/Montero 1983–1996, Mitsubishi ASA parts catalogue, Bendix AU/NZ catalogue). Higher-spec variants with rear disc brakes use callipers instead, so no wheel cylinders are fitted on those versions. If the 1993 Pajero in question has rear drums, it will have wheel cylinders, if it has rear discs, it won’t.

For Pajeros fitted with rear drum brakes, the brake wheel cylinders do a simple but critical job: they convert the brake fluid’s hydraulic pressure into outward force on the drum brake shoes, pressing the linings against the drum to slow the vehicle. Each rear drum assembly typically has a dual-piston wheel cylinder at the top, and it must move freely and stay sealed to keep pedal feel consistent and braking balanced.

As part of regular servicing, it’s smart to check wheel cylinders whenever the rear drums come off for shoe inspection. Look for dampness or fluid trails beneath the dust boots, swollen or cracked rubber, and any signs of corrosion or sticking pistons. A spongy pedal, fluid loss, rear brake pull, or contaminated shoes are common symptoms of a failing cylinder.

• Replace wheel cylinders in axle pairs if one side is leaking or seized.
• Flush old brake fluid (DOT 3 or DOT 4, as specified on the reservoir cap) every 2 years to reduce internal corrosion.
• When refitting, clean the backing plate and ensure the shoe contact points and adjuster move freely.
• Bleed the system carefully, keeping the reservoir topped up, follow the service manual bleed sequence for Pajero NH/NJ.
• If shoes were soaked with fluid, replace them—detergents won’t reliably restore friction.

Quality aftermarket or OE-spec cylinders are inexpensive insurance on an older 4x4 that tows or sees off-road use. Keeping them fresh maintains straight-line stops, protects the master cylinder and ABS components from contamination, and keeps the Paj’s brake pedal nice and firm. For Pajeros with rear disc brakes, wheel cylinders aren’t applicable, those vehicles use calliper pistons, and service focuses on seals, slides, and pads rather than drum hydraulics.

Popular questions about 1993 Mitsubishi Pajero brake wheel cylinders

How can they tell if their 1993 Pajero has wheel cylinders?
Check the rear brakes: if there’s a drum (closed round housing) behind the wheel, it’s drum brake with a wheel cylinder. If there’s a visible calliper and ventilated rotor, it’s disc and there’s no wheel cylinder. The vehicle’s build plate, parts catalogue look-up by VIN, or the factory manual for NH/NJ models will also confirm the setup.

What are the signs a Pajero’s wheel cylinders need replacing?
Tell-tales include dampness under the dust boots, fluid on the backing plate, a soft or sinking pedal, the car pulling to one side under braking, or brake shoes contaminated with fluid. On a service, any corrosion inside the bore or sticky pistons is reason enough to replace, ideally in axle pairs.

Do they need to bleed the whole system after replacing a wheel cylinder?
At minimum, bleed the affected circuit until clean, bubble-free fluid runs. On older fluid or if air may have tracked further, a full-system bleed is smart. Keep to DOT 3 or DOT 4 as specified, don’t mix in silicone DOT 5, and maintain the correct bleed order per the Pajero NH/NJ service procedure.