TOYOTA 48257-60020 Rear Coil Spring Insulator

The genuine TOYOTA 48257-60020 rear coil spring insulator (pad) is a premium-quality original part that plays a vital role in the vehicle's rear suspension system. Positioned between the spring seat and the coil spring, this vibration-damping element prevents direct metal-to-metal contact, significantly improving ride comfort and protecting suspension components against premature wear.

Key Functions and Features:

• Noise and Vibration Damping (NVH Reduction): Absorbs micro-vibrations caused by road irregularities and minimizes rolling noise transmitted from the suspension.
• Prevention of Metal-to-Metal Contact: Protects the coil spring and the vehicle body mating surfaces from direct friction, preventing corrosion and structural weakening.
• Precise Fit: As an authentic OEM component, it features an exact geometric shape, ensuring a stable, slip-free position for the coil spring.

Technical Specifications:

• Fitting Position: Rear axle (Rear), coil spring seat
• Material: High-density, weather- and ozone-resistant vulcanized rubber / elastomer
• Manufacturer: TOYOTA (Original Equipment Manufacturer)

Signs of Wear and Importance:

Over time, rubber components degrade, harden, or crack due to continuous load and environmental conditions (moisture, mud, road salt). A worn or damaged coil spring insulator can cause the following symptoms:

• Knocking, squeaking, or metallic noises from the rear suspension, particularly over uneven road surfaces.
• Slight sagging of the vehicle rear or instability during cornering.
• Increased vibration transmitted into the passenger cabin.

When replacing springs or overhauling rear shock absorbers, replacing the coil spring insulators is strongly recommended to restore optimal suspension performance.