Conv Front Spring 5.5in x 9.5in x 1150#

The AFCO Racing Products Conv Front Spring 5.5in x 9.5in x 1150# (model 21150-1B) is a heavy-duty conventional coil spring engineered for high-performance suspension systems in racing and marine applications. Built for serious boaters and performance enthusiasts, this front-mount spring delivers the stiffness needed to maintain control under load while keeping your vessel or vehicle stable in demanding conditions. Whether you're running tight turns at speed or navigating rough water, this 1150 lb/in spring rate provides the responsive handling that separates amateur operators from experienced professionals.

Manufactured from high-grade steel with a black powder-coat finish, the Conv Front Spring resists corrosion and maintains structural integrity in saltwater and freshwater environments alike. The 5.5-inch outer diameter and 9.5-inch length are precisely dimensioned for conventional suspension geometry, while the 1150 lb/in spring rate offers a firm response ideal for front-end support under acceleration and load. The powder-coat finish protects against rust and UV degradation, critical when equipment is exposed to constant moisture and sun. At 14.75 pounds, this spring integrates seamlessly into OEM and aftermarket suspension platforms without adding unnecessary unsprung weight.

This front spring is ideal for racers, marine mechanics, and boating enthusiasts upgrading suspension performance or replacing worn components. The 1150 lb/in rate works best in applications requiring a stiffer front end—common in performance boats, race vehicles, and high-demand water craft where payload and speed demand reliable spring support. Installation requires basic mechanical knowledge and compatibility verification with your vehicle or vessel's suspension specifications. For optimal performance and longevity, pair this spring with matched rear components and ensure proper wheel alignment or trim settings post-installation.