King SPR375-12-500 Coil Spring 3.75" ID x 12" Length x 500 lb Rate

The King SPR375-12-500 is a high-performance coil spring designed specifically for off-road and racing applications. This coil spring features a 3.75-inch inside diameter, 12-inch free length, and a 500 lb/inch spring rate, making it compatible with 3.0-inch outside diameter coil-over shocks from King and other manufacturers.

Key Features:

• Manufactured in the USA from premium high-tensile chrome silicon wire for superior strength and durability
• Spring rate etched on top for clear identification even after hard use
• Closed and ground ends for flat seating and true deflection
• Specifically wound for off-road applications with spring rates, wire diameters, and coil lengths developed through extensive real-world testing
• Universal fit - compatible with King and all other brands of coil-over shocks
• Lifetime warranty to original purchaser against sagging and breakage

This coil spring delivers the consistent performance and reliability that King Shocks is known for, with race-proven designs tested from Baja to Dakar. The 500 lb spring rate means it takes 500 pounds of force to compress the spring one inch, providing predictable, linear spring characteristics for precise suspension tuning.