Coilover Spring 12in x 2.5in 150/400 Prog

Name: Coilover Spring 12in x 2.5in 150/400 Prog
Brand: Swift
SKU: S01E 120-250-400 V
Price: 147.48 USD
Availability: InStock

$171.00 $147.48 Save $23.52

SKU: S01E 120-250-400 V

In Stock

Ships by Jun 8

Free Shipping

Non-Returnable Item

DIY PRO SHOP

Easy — 1–2 hours

Description

The Swift Standard Coilover Progressive Spring is a 12-inch length spring designed for motorsports applications. It features a 2.5-inch inner diameter and a progressive spring rate of 150/400 lbs/inch. Developed to eliminate the need for spring rubbers, it offers a true progressive rate.

Constructed with Swift's proprietary HS5.TW material, this spring is engineered for optimal performance and responsiveness. It has a usable stroke of 5.7 inches, a max stroke of 6.3 inches, and a max load capacity of 1,744 lbs.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	Swift
Part Number	S01E 120-250-400 V

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy