King SPR375-085-500 3.75" Coil Spring 8.5" Length 500 lb Rate

The King SPR375-085-500 is a high-performance coil spring designed specifically for off-road suspension applications. This 3.75-inch inside diameter coil spring features an 8.5-inch free length and a 500 lb/inch spring rate, making it ideal for 3.0-inch outside diameter coil-over shock systems.

Key Specifications:

• Inside Diameter: 3.75 inches
• Free Length: 8.5 inches
• Spring Rate: 500 lbs per inch
• Fits 3.0" outside diameter coil-over shocks
• Manufactured in the USA

Premium Construction:

• Made from high-tensile chrome silicon wire for maximum durability
• Closed and ground ends to sit flat and deflect true
• Specifically wound for off-road applications, not repackaged automotive springs
• Spring rates and wire diameters developed through extensive real-world testing

Performance Proven: King coil springs have been tested in demanding off-road conditions from Baja to Dakar racing. The 500 lb/inch spring rate means this coil requires 500 pounds of force to compress one inch, providing firm, progressive suspension control for aggressive off-road driving.

Warranty: Backed by King's lifetime warranty to the original purchaser against sagging and breakage, ensuring long-term performance and peace of mind.