King SPR375-16-350 Coil Spring 3.75" ID x 16" Length 350 lb Rate

The King SPR375-16-350 is a high-performance coil spring engineered for off-road shock applications. This universal spring features a 3.75-inch inside diameter, 16-inch free length, and a 350 lb/inch spring rate, making it compatible with 3.0-inch outside diameter coil-over shocks from King and other manufacturers.

Key Features:

• 3.75-inch inside diameter fits 3.0" coil-over shocks
• 16-inch free length
• 350 lb/inch spring rate for precise suspension tuning
• Manufactured in the USA using high-tensile chrome silicon wire
• Closed and ground ends sit flat and deflect true
• Spring rate etched on top for easy identification after hard use
• Specifically wound for off-road applications, not repackaged car springs
• Powder coated for corrosion resistance

King coil springs are developed through extensive real-world testing on all types of terrain, from Baja to Dakar race conditions. The spring rate indicates the amount of force in pounds required to compress the coil one inch—this 350 lb rate means consistent, linear compression characteristics for predictable suspension performance. Backed by King's lifetime warranty against sagging and breakage to the original purchaser.