Prothane 8-1703-BL Front Upper Coil Spring Isolator Kit Black

The Prothane 8-1703-BL is a front upper coil spring isolator kit crafted from high-performance polyurethane, designed as a direct upgrade over worn or deteriorated OEM rubber isolators. These isolators cushion the interface between the coil spring and the upper spring perch, helping to reduce noise, vibration, and harshness transmitted into the chassis.

Prothane's polyurethane compound is significantly more durable than factory rubber, resisting compression set, oil, and weathering for a longer service life. The black color variant includes a small amount of graphite blended into the polyurethane, which aids in reducing squeaking. Proper application of the included pre-lube grease at installation is recommended to ensure quiet, long-lasting performance.

Key Features:

• Upper front coil spring isolator kit — includes 2 isolator bushings
• Polyurethane construction — more durable and longer-lasting than OEM rubber
• Black (BL) color — graphite-infused formula for added squeak resistance
• Direct OEM replacement fit — no modifications required
• Includes pre-lube grease for proper installation
• Made in the USA
• Lifetime warranty — Prothane guarantees against defects in materials and workmanship for the life of the vehicle under original ownership

Prothane coil spring isolators are a straightforward suspension upgrade that helps restore ride quality and reduce unwanted noise from the front suspension. Professional installation is recommended.