King SPR375-13-300 Off-Road Coil Spring 3.75" ID 13" Length 300 lb Rate

The King SPR375-13-300 is a premium off-road coil spring engineered for demanding racing and off-road suspension applications. This universal coil spring features a 3.75-inch inside diameter, 13-inch free length, and a 300 lb per inch spring rate, making it compatible with 3.0-inch outside diameter coil-over shocks from King and other leading brands.

Key Features:

• Manufactured in the USA from high-tensile chrome silicon wire for superior strength and durability
• Specifically wound for off-road applications with spring rates, wire diameters, and coil lengths developed through extensive real-world testing
• Closed and ground ends sit flat and deflect true for consistent performance
• Spring rate clearly etched on top for easy identification even after hard use
• Linear spring rate delivers predictable force: 300 lbs at 1 inch compression, 600 lbs at 2 inches, 900 lbs at 3 inches
• Compatible with single or dual-rate spring configurations

Specifications:

• Inside Diameter: 3.75 inches
• Free Length: 13 inches
• Spring Rate: 300 lbs per inch
• Fits: 3.0" Outside Diameter Coil-Over Shocks (Universal)

King's race-proven coil springs have been tested in the most demanding conditions from Baja to Dakar, providing consistent spring rates and reliable performance for off-road enthusiasts and professional racers alike. This spring is sold individually and does not include mounting hardware.