KYB SM5821 Coil Spring Insulator - Front Lower

KYB SM5821 Front Lower Mount Component

KYB SM5821 is a front lower mount component from KYB Mount Components, built for drivers replacing worn suspension insulators on select Nissan and INFINITI vehicles. It addresses noise, vibration, and steering feel issues caused by hardened or deteriorated original mounts.

Key Features

• OE-quality replacement strut mount component designed for the specific application
• Superior rubber helps reduce noise, vibration, and harshness
• Mount bearing design supports smoother steering response and front-end alignment retention
• Matched-grade studs and nuts for proper fitment
• Engineered to cushion road impacts and reduce jarring transmitted into the cabin

Product Details

The KYB Mount Components line focuses on restoring suspension function with application-specific replacement parts. For vehicles such as the Nissan Murano, Nissan Maxima, Nissan Pathfinder, Nissan Altima, Nissan Quest, INFINITI QX60, and INFINITI JX35, the SM5821 front lower mount component helps replace worn vibration insulators that can affect ride quality and steering precision. KYB designs these components to match original equipment requirements, making KYB SM5821 a practical choice for suspension service on front lower mounting locations.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Clunking or knocking from worn front suspension mounts
• Excess cabin vibration from hardened rubber insulators
• Loose or imprecise steering feel at the front end
• Uneven front-end alignment behavior caused by worn mount bearings
• Harshness over bumps transferred through the suspension

Installation Notes

Install the SM5821 in the front lower position only on confirmed applications. Verify year, make, model, and suspension configuration before service, and inspect related strut and steering components for wear during replacement. Proper alignment checks after installation are recommended whenever front suspension mounting components are replaced.

Quality Assurance

KYB is known for OE-style suspension replacement components, and the Mount Components line is built to meet application-specific requirements for fit and function. The SM5821 follows that approach with materials and bearing support intended to restore original suspension behavior on confirmed Nissan and INFINITI applications.

Compatible With: 2007-2018 Nissan Altima, front lower; 2009-2024 Nissan Murano, front lower; 2009-2014 Nissan Maxima, front lower; 2016-2023 Nissan Maxima, front lower; 2011-2017 Nissan Quest, front lower; 2013-2020 Nissan Pathfinder, front lower; 2022-2023 Nissan Pathfinder, front lower; 2014-2020 INFINITI QX60, front lower; 2013 INFINITI JX35, front lower.