KYB Suspension Strut Mount P/N:SM5303

Be the first to review this product
$61.99
MPN: SM5303
UPC: 781552953036
Item Package Quantity: 1
Adding to cart… The item has been added

Have questions?

KYB Suspension Strut Mount P/N:SM5303
KYB Suspension Strut Mount P/N:SM5303
$61.99

Tame the noise and vibration of worn, hardened mounts with the KYB strut mount SM5303, a front, left-hand suspension strut mount that drops in as a direct-fit replacement on the 1986-1991 Mazda RX-7. Often searched as a KYB shock mount or KYB top mount, this unit replaces the original insulator that stiffens with age and passes more road impact, noise and vibration into the cabin, offering OE-quality replacement built for this application.

On this front position, the bearing plate acts as the steering pivot and helps support vehicle weight, so it plays a critical role in steering feel and wheel alignment.

  • Superior rubber: helps reduce the noise, vibration and harshness that tired, hardened mounts transmit into the vehicle.
  • Mount bearing: provides smoother steering and helps retain front-end alignment.
  • Front bearing plate: serves as the steering pivot and helps support vehicle weight.
  • Matched-grade studs and nuts: included for secure fastening.

Interchange: 142645 · FB0134380C · 902974

This part cross-references / interchanges with the following part numbers:

142645, FB0134380C, 902974

Frequently Asked Questions

What does the KYB SM5303 strut mount do?

It's a front strut mount for the 1986-1991 Mazda RX-7. It cushions road impacts, and its bearing plate acts as the steering pivot while helping support vehicle weight and retain front-end alignment.

Which vehicle does the KYB SM5303 fit?

It's a direct-fit replacement for the front, left-hand position on the 1986-1991 Mazda RX-7. Check the Buyer's Guide tab to confirm your exact vehicle.

What are the signs a strut mount may need replacing?

Signs may include clunking or knocking over bumps, increased noise and vibration through the body, and poor steering return or alignment. Diagnose the cause before replacing, as other parts can share these symptoms.

Does the KYB SM5303 include mounting hardware?

Yes. This KYB strut mount comes with matched-grade studs and nuts for installation.

Should I replace both strut mounts at once?

Replacing the left and right mounts together is good practice for balanced ride and steering feel, though it isn't strictly required. This listing covers one front, left-hand mount.