Coil spring is a type of spring made of heavy-gauge steel wire used to support the weight of the vehicle. The spring can be found between the control arm and chassis, the axle and chassis, or around a McPherson strut. Coil springs may also be conical or spiral wound, constant rate or variable rate, and wound with variable pitch spacing or variable thickness wire. Coil springs are chiefly for passenger cars.

They are usually made of round bars, 10 to 60 mm in diameter, whether hot or cold coiled. Coil springs are made of either round, square or single shape of different type sections. It also has various shapes, like cylindrical, conical and hourglass. Because of age, coil springs tend to sag and sometimes break.

Replacement in pairs is recommended to maintain even ride height side-to-side. Pro Comp coil springs are available in the auto market. With Pro Comp coil springs, your vehicle will be raised to a new level. You will also find an ample room for aggressive tires inside your newly-spacious wheel wells. You will notice the superior quality Pro Comp coil spring is offering the public. The spring has a protective powder coat finish that prevents corrosion. It is also an ideal replacement for your long-suffering off-road springs. Pro Comp has crafted its coil spring to last. Pro Comp has been designing and manufacturing on and off road suspension systems, shock absorbers, lighting and accessories for trucks and SUVs. Their facility allows them to produce the highest quality products for their customers. Pro Comp continues to adhere to its commitment in producing the utmost quality and durability of its products.