KYB SM5413 Coil Spring Insulator - Front Upper

KYB SM5413 Coil Spring Insulator

KYB SM5413 is a front upper coil spring insulator for suspension service on select Toyota, Lexus, Chevrolet, GMC, and Isuzu applications. It is built to replace hardened or worn spring seats that can transmit noise and vibration into the chassis.

For drivers searching for a front upper coil spring insulator for Toyota 4Runner, Toyota Tacoma, or Lexus GX460 suspension repair, KYB Mount Components are designed to restore proper spring seating and reduce unwanted movement at the mount.

Key Features

• Replacement spring insulator engineered for suspension noise control
• Helps reduce squeaks, rattles, and vibration transfer from the spring seat
• Built to match or exceed original equipment design and quality
• OE-quality replacement component for front upper suspension service
• Part number SM5413 for accurate ordering and fitment lookup

Product Details

KYB Mount Components focus on restoring the interface between the coil spring and the suspension mount. This spring seat and insulator is intended to replace aged rubber components that harden over time, creating extra noise and reducing isolation. The result is a more controlled spring mount with OE-style fit and function. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Compatible With 2003-2023 Toyota 4Runner, front upper; 1995-2023 Toyota Tacoma, front upper; 2010-2017 and 2019-2023 Lexus GX460, front upper; 2003-2009 Lexus GX470, front upper; 2007-2014 Toyota FJ Cruiser, front upper; 2004-2012 Chevrolet Colorado, front upper; 2004-2012 GMC Canyon, front upper; 2006-2007 Isuzu i-280 and i-290, front upper.

Common Issues It May Address

• Front suspension squeaks from worn spring insulators
• Rattles caused by hardened or cracked coil spring seats
• Vibration noise transferred through the upper spring mount
• Poor spring isolation during suspension compression and rebound
• Noise complaints after replacing shocks or struts without renewing mount components

Installation Notes and Tips

Inspect the upper spring seat, insulator, and surrounding mount hardware during suspension service. Replace worn mount components as a set when the rubber has hardened, split, or compressed unevenly. Verify vehicle configuration before ordering, including Lexus GX460 models without Adaptive Variable Suspension and Chevrolet Colorado/GMC Canyon models without Off Road Suspension.

Quality Assurance

KYB spring seats and insulators are designed as OE-quality replacement components for the listed applications. KYB is known for suspension mount components that follow original equipment design targets for fit, noise isolation, and durability.