MN580143 Mitsubishi INSULATORFRSUSPSTRUT, Price: 43.38$, Weight: 0.96kg

Front Strut Insulator for Mitsubishi Vehicles

This upper mount insulator is a key part of the front MacPherson strut assembly on many Mitsubishi models. It cushions the body from road shock, keeps the strut centered in the tower, and helps the spring seat align correctly. With fresh, OEM-grade rubber and steel reinforcement, it restores quiet, precise steering and a smooth ride ️.

Why you need it

• Blocks vibration and road noise (NVH) from entering the cabin.
• Prevents metal-to-metal contact between strut and body.
• Maintains correct camber and caster geometry for even tire wear.
• Supports steering rotation on strut-type front suspension.

How it works

The insulator sits at the top of the shock/coil assembly. Its rubber isolator, bonded to a rigid plate, absorbs impacts while the integrated seat and bearing area allow the strut shaft/spring to rotate smoothly during steering. This design reduces harshness and keeps the upper mount stable under braking and cornering.

What happens if it’s broken ⚠️

• Clunking over bumps, creaks when turning the wheel.
• Steering bind or memory steer; the wheel doesn’t self-center well.
• Vibration at speed, poor ride comfort, and wandering.
• Uneven tire wear and stress on the strut, spring, and strut tower.

Tech notes & install tips ✅

• Replace in axle pairs; inspect the bearing, spring seat, bump stop, and dust boot.
• Torque the top mount with the car at ride height to avoid bushing preload.
• Perform wheel alignment after installation.
• Ideal upgrade when fitting new shocks/struts for a complete suspension refresh.