King SPR375-22-550 Off-Road Coil Spring 3.75" ID 22" Length 550 lb Rate

The King SPR375-22-550 is a premium off-road coil spring designed for 3.0-inch diameter shock bodies. This high-performance spring features a 3.75-inch internal diameter, 22-inch length, and 550 lb per inch spring rate, making it ideal for demanding off-road applications on trucks, SUVs, and high-performance vehicles.

Key Specifications:

• Internal Diameter: 3.75 inches (fits 3.0-inch shock bodies)
• Length: 22 inches
• Spring Rate: 550 lbs per inch of compression
• Material: High tensile chrome silicon wire
• Closed and ground ends for flat seating and true deflection
• Manufactured in the USA

Premium Construction:

• Specifically wound for off-road applications, not repackaged automotive springs
• Spring rates, wire diameters, and coil lengths developed through extensive real-world testing
• Race-proven designs tested in competitions from Baja to Dakar
• Precision manufactured to King Shocks specifications

Performance Benefits:

• Linear compression rate provides predictable handling characteristics
• High-quality materials ensure consistent performance under extreme conditions
• Closed and ground ends sit flat and deflect true for optimal shock operation
• Compatible with King and most other brands of coil-over shocks

King Shocks backs this coil spring with a lifetime warranty to the original purchaser against sagging and breakage, demonstrating their confidence in the quality and durability of their products. The spring rate of 550 lbs per inch means it takes 550 pounds of force to compress the spring one inch, 1,100 pounds to compress it two inches, and so on in a linear progression.