Delphi TD4664W Coil Spring Insulator - Rear, Rear Lower or Rear Upper

Delphi Coil Spring Insulator for Rear Suspension

The Delphi TD4664W coil spring insulator is designed as a standard replacement part for rear suspension systems. Engineered to fit specific rear, rear lower, and rear upper positions, this component helps maintain proper suspension function on select GM and related vehicles.

• Standard replacement grade coil spring insulator
• Position-specific fitment: rear, rear lower, and rear upper suspension locations
• Compatible with multiple GM makes and models including Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Oldsmobile
• Durable material designed to reduce noise and vibration
• Part number TD4664W for precise identification and ordering

The Delphi TD4664W coil spring insulator is manufactured to meet OEM specifications, ensuring reliable performance in the rear suspension of vehicles such as the Chevrolet Avalanche, Cadillac Escalade, GMC Yukon, and Hummer H2. This insulator cushions the coil spring, minimizing metal-to-metal contact and reducing suspension noise and harshness. Its design accommodates installation in rear, rear lower, and rear upper positions, depending on the vehicle's suspension setup. Using the correct coil spring insulator helps maintain ride quality and suspension integrity over time.

Compatible Vehicles and Applications

This coil spring insulator is compatible with a range of GM and related models, including Buick Rainier, Cadillac Escalade EXT, Chevrolet Suburban 1500, GMC Envoy XL, Hummer H2, Isuzu Ascender, and Oldsmobile Bravada. It is intended for use in rear suspension assemblies where position-specific insulators are required to ensure proper fit and function.

• Reduces suspension noise and vibration
• Prevents coil spring damage and wear
• Maintains proper spring alignment and positioning
• Helps extend suspension component life
• Addresses issues related to worn or damaged insulators

Installation Notes and Tips

When replacing the coil spring insulator TD4664W, ensure the correct position is identified—rear, rear lower, or rear upper—based on your vehicle’s suspension design. Proper installation is critical to avoid premature wear or noise issues. It is recommended to inspect the coil springs and related suspension components during replacement to confirm overall system condition.

Quality Assurance and Warranty

Delphi coil spring insulators are manufactured to meet or exceed OEM standards for durability and performance. The TD4664W part undergoes quality control testing to ensure consistent fit and function. While specific warranty details may vary, Delphi products typically come with a limited warranty against defects in materials and workmanship.