KYB SM5746 Coil Spring Insulator - Rear Lower

KYB SM5746 Coil Spring Insulator

Restore quieter suspension operation with the KYB SM5746 coil spring insulator. This Mount Components part is built to replace worn spring seats and insulators that can create vibration, squeaks, and rattles in the rear suspension.

Compatible with select Hyundai Elantra, Hyundai Tiburon, and Kia Spectra rear lower applications, this OE-style replacement is made to match the original design and support consistent suspension performance.

Key Features

• High-quality replacement coil spring insulator for rear lower suspension locations
• Helps reduce squeaks, rattles, and vibration noise from aged insulators
• Built to match or exceed original equipment design and quality
• Part of KYB Mount Components for suspension service and repair
• Fits select Hyundai Elantra, Hyundai Tiburon, and Kia Spectra applications

Product Details

KYB Mount Components are engineered as OE-quality replacement parts for suspension service. The SM5746 spring insulator is designed to isolate the coil spring from the mounting surface, helping reduce harshness caused by hardened or deteriorated factory insulators. For drivers servicing a 2001-2006 Hyundai Elantra rear lower suspension, a 2003-2008 Hyundai Tiburon rear lower suspension, or a 2005-2009 Kia Spectra rear lower suspension, this part supports a cleaner, quieter ride. This part cross-references Monroe Shocks & Struts 905948 for the same application.

What It Helps Fix

• Squeaking from worn rear spring insulators
• Rattling noises in the suspension area
• Vibration transferred through aged spring seats
• Noise caused by hardened or cracked insulator material
• Loss of original suspension isolation at the rear lower spring mount

Installation Notes

Install the SM5746 in the rear lower spring location only on the listed applications. Inspect the surrounding spring seat, mount surfaces, and related suspension parts for wear before reassembly. Proper alignment of the insulator with the coil spring and seat is important for noise control and fitment accuracy.

Quality Assurance

KYB positions Mount Components as OE-quality replacement suspension parts, with design and material standards intended to match or exceed original equipment for the specified application. The SM5746 is built to address the noise and vibration issues commonly caused by aged spring insulators.