What does the spring rate (550 lbs/in) mean for my vehicle?

The 550 lbs/in spring rate indicates how much force is required to compress the spring by one inch. A higher number means a stiffer spring, which generally results in less body roll and a firmer ride. This rate is chosen to complement the valving of compatible Fox shocks.

What are the key dimensions of this coilover spring?

This Fox coilover spring measures 17.640 inches in length and has an inner diameter of 3.66 inches. These dimensions are critical for ensuring it fits correctly onto the shock body and any associated hardware.

Is this spring sold individually or as a set?

This product listing is for a single Fox coilover spring. If your application requires multiple springs, please ensure you order the correct quantity.

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Specifications

Brand: FOX
Part #: 039-00-470

Fox Coilover Spring 17.640 TLG X 3.66 ID X 550 lbs/in. Black

Name: Fox Coilover Spring 17.640 TLG X 3.66 ID X 550 lbs/in. Black
Brand: FOX
SKU: fox-fox-coilover-spring-17-640-tlg-x-3-66-id-x-550-lbs-in-black-t14-459827
Price: 110.00 USD
Availability: BackOrder

$110.00

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

Fits Suspension > Coilover Springs
Brand: FOX
Part Number: 039-00-470
Spring Rate: 550 lbs/in
Length: 17.640 inches
Inner Diameter: 3.66 inches

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About this part

Product Details

This is a Fox 550 lb/in coilover spring, measuring 17.640 inches long with a 3.66 inch inner diameter. It comes in a black finish and is designed for use with Fox coilover systems. The spring rate is a key factor in how your suspension handles bumps and body roll, and this specific rate is chosen to work with the valving and travel of compatible Fox shocks.

When selecting a spring, the length, inner diameter, and spring rate all need to match the intended application and the shock body it will be installed on. This particular spring is well-built and intended to provide consistent performance for your suspension setup. Ensure your existing Fox coilover system is designed to accept this spring's specifications for proper fitment and function.