Rear Engine Support Insulator – Primary Rear Mount

Keep your 4x4 smooth and quiet with this rear engine support insulator ️. Built for heavy-duty use, it isolates engine vibrations from the frame, maintains powertrain height, and keeps driveline angles correct during acceleration, towing, and off-road flex. A healthy rear mount preserves cabin comfort, protects exhaust joints, and extends the life of adjacent mounts and the transfer case .

Why this part is needed

Large inline and V engines generate torque pulses and idle shake. This mount absorbs those forces, preventing metal-to-metal contact and reducing noise, vibration, and harshness. It’s essential for chassis longevity and smooth shifting.

How it works

A rubber–metal sandwich with bonded studs ties the gearbox tail/engine rear bracket to the crossmember. The elastomer works in shear and compression, damping oscillations while holding the powertrain at the correct height. Oil- and heat-resistant compound ensures stable performance.

What happens if it’s broken

Expect harsh vibration at idle, clunks on gear changes, shudder on takeoff, and a tilted drivetrain. Exhaust flex joints strain, hoses stretch, and front mounts overwork. Misalignment can wear U-joints and the transfer case. In severe cases the engine can contact the subframe ⚠️.

Compatibility

• Land Cruiser
• Land Cruiser S/T
• Land Cruiser H/T