KYB SM5807 Coil Spring Insulator - Front Lower

KYB SM5807 Mount Components Overview

KYB SM5807 is a suspension mount component built for front lower applications on select Buick, Cadillac, and Chevrolet vehicles. It addresses the noise, vibration, and harshness that can develop when original vibration insulators harden with age.

For drivers searching for a front lower coil spring insulator for a 2011-2017 Buick Regal, 2014-2018 Chevrolet Impala, or 2013-2019 Cadillac XTS, this KYB Mount Components part is an OE-quality replacement designed around the specific application.

Key Features

• OE-quality replacement strut mount component for the listed application
• Superior rubber construction helps reduce noise, vibration, and harshness
• Mount bearings support smoother steering response and front-end alignment retention
• Matched-grade studs and nuts for proper fitment details as specified by KYB
• Engineered to restore suspension isolation after original insulators harden or wear

Product Details

KYB’s Mount Components line focuses on suspension service parts that restore factory-style ride control and steering feel. The SM5807 is part of that line and is built to replace worn front lower mount components on vehicles such as the Chevrolet Cruze, Chevrolet Malibu, Buick LaCrosse, and Cadillac ELR. By replacing a deteriorated insulator or mount assembly, the suspension can better absorb road impacts and reduce the jarring transfer of vibration into the cabin.

This part cross-references General Motors 20859338 and 22837396 for the same application.

What It Helps Address

• Clunking or knocking from worn front suspension mount components
• Excess cabin vibration from hardened rubber insulators
• Harsh ride quality over bumps and uneven pavement
• Steering looseness related to worn mount bearings
• Front-end alignment concerns caused by degraded support hardware

Installation Notes and Tips

Fits 2016-2019 Buick Cascada, Front Lower; 2013-2019 Cadillac XTS, Front Lower; 2014-2018 Chevrolet Impala, Front Lower; 2011-2017 Buick Regal, Front Lower; 2012-2017 Buick Verano, Front Lower; 2010-2016 Buick LaCrosse, Front Lower; 2014-2016 Cadillac ELR, Front Lower; 2016 Chevrolet Cruze Limited, Front Lower; 2016 Chevrolet Malibu Limited, Front Lower; 2011-2015 Chevrolet Cruze, Front Lower; 2013-2015 Chevrolet Malibu, Front Lower; 2011-2015 Chevrolet Volt, Front Lower.

Verify the vehicle’s front lower suspension configuration before installation and compare the original part to the replacement component. Proper torque procedures and alignment checks after suspension service help maintain steering accuracy and tire wear patterns.

Quality Assurance

KYB is known for OE-style suspension replacement parts, and the SM5807 is built to meet application-specific fitment and performance requirements for the listed vehicles. The design emphasizes rubber isolation and steering support where the original mount component has worn or hardened.