Coil Spring - Front RA3418 KYB

The main function of this coil spring is to support the weight of the vehicle, maintain the correct ride height, and absorb shocks from the road surface to provide a comfortable and stable ride.

This product is typically sold as the coil spring itself. It does not usually include other suspension components like shock absorbers, struts, or isolators, which may need to be purchased separately or are reused from the original assembly.

Yes, it is strongly recommended to replace coil springs in pairs on the same axle (both front or both rear) to ensure balanced handling, maintain consistent ride height, and prevent uneven tire wear.

K-Flex refers to a specific design or technology used by KYB in their suspension springs. While the exact technical differences can be complex, it generally relates to the spring's material, manufacturing process, and performance characteristics, often optimized for ride comfort and durability.

The most reliable way is to use the vehicle fitment tool available on most parts websites by entering your vehicle's make, model, year, and engine size. You can also compare the part number (RA3418) with your existing part or consult your vehicle's service manual, or contact customer support with your VIN.

The KYB Coil Spring RA3418 weighs approximately 1.93 kg.

Verify that the coil spring is correctly seated on both the lower control arm and the strut mount. Ensure no debris is present in the spring seats. If the issue persists, the spring may have fatigued or there could be an issue with the other side's suspension components.

Check that the spring is properly seated and that any spring isolators or rubber seats are intact and correctly positioned. Inspect other suspension components, such as bushings, ball joints, and shock absorbers, for wear or damage.

A broken or visibly damaged coil spring requires immediate replacement. Do not drive the vehicle. Replace the affected spring and inspect the corresponding spring on the opposite side of the axle, as it may also be compromised.