KYB SM5904 Suspension Shock Absorber Mount - Rear Upper

KYB Rear Upper Strut Mount for Ford and Lincoln

KYB SM5904 is a rear upper suspension shock absorber mount built for specific Ford and Lincoln applications. It replaces worn vibration insulators and bearing support components that can transmit noise, harshness, and steering-related movement into the cabin.

Key Features

• OE-quality replacement strut mount from KYB Mount Components
• Helps isolate road vibration and reduce suspension noise
• Supports rear upper suspension mounting points
• Front bearing plate design supports steering performance and wheel alignment where applicable
• Direct-fit application coverage for select Ford Edge, Ford Mustang, Lincoln Aviator, Lincoln Nautilus, and Lincoln MKX models

Product Details

The KYB SM5904 strut mount is engineered for rear upper suspension locations on select Ford and Lincoln vehicles. KYB designs these mounts to replace hardened or deteriorated vibration insulators that can cause clunks, rattles, and excess road feel. This part number is listed for 2015-2023 Ford Edge rear upper, 2020-2023 Lincoln Aviator rear upper, 2019-2023 Lincoln Nautilus rear upper, 2020-2022 Ford Mustang rear upper without Electronic Suspension, 2015-2019 Ford Mustang rear upper, and 2016-2018 Lincoln MKX rear upper. This part cross-references Ford F2GZ18A161A and FR3Z18A161A for the same application.

What It Helps Address

• Rear suspension noise from worn mount components
• Excess vibration transferred into the vehicle body
• Harsh impact feel over bumps and rough pavement
• Loose or degraded upper strut support
• Alignment and steering concerns tied to worn bearing support on applicable setups

Installation Notes

Verify vehicle fitment by year, make, model, and suspension configuration before installation. This listing includes a 2020-2022 Ford Mustang rear upper application without Electronic Suspension, so confirm the vehicle’s equipment before ordering. Inspect related suspension parts, including the strut assembly and surrounding mounting points, during replacement.

Quality Assurance

KYB is known for OE-style suspension replacement components, and the SM5904 follows that approach with application-specific fitment and construction for the listed vehicles. KYB strut mounts and bearing plates are used to restore proper suspension support and reduce noise from worn original parts.