K-Tuned

8-Inch 65mm ID 10.0kg/mm Coilover Spring

$238.00

SKU: Z65-203-100

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

This specific model, Z65-203-100, offers an 8-inch length with a 65mm inner diameter and a spring rate of 10.0kgf/mm (560 lbs/inch). Constructed from K-Tuned's proprietary HS5.TW material, these springs are designed to offer superior performance and durability compared to traditional materials. This advanced material helps reduce unsprung weight while maintaining structural integrity under demanding conditions. The spring provides a usable stroke of 100mm and a maximum stroke of 125mm, allowing for effective damping and wheel travel management. These springs are sold exclusively in pairs. While the image may not reflect the exact color coordination for this specific ID, the dimensions and specifications are accurate for the Z65-203-100 part number.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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

BrandK-Tuned
Part NumberZ65-203-100
CategorySuspension and Components

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

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

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy