Size Chart
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Build or service a suspension, steering, or fabrication assembly with this QA1 coilover springs. Manufacturer part number 12CS300 uses the listed 2-1/2in ID Spring - 12in Length x 300lbs/in - Chrome Plated configuration, and compatibility is determined by exact dimensions, threads, mounts, travel, load, and mating components rather than vehicle name alone.
Key Features
Fitment
| Fitment Basis | Universal or interface-specific |
|---|---|
| Required Verification | Confirm dimensions, thread size and direction, mounting style, travel, spring rate, load, clearance, and mating components |
| YMM Status | No vehicle model is assigned when compatibility is determined by physical interface |
Specifications
| Brand | QA1 |
|---|---|
| Manufacturer Part Number | 12CS300 |
| Product Type | Coilover Springs |
| Listed Configuration | 2-1/2in ID Spring - 12in Length x 300lbs/in - Chrome Plated |
| Compatibility Basis | Universal |
| Condition | New |
What's Included
One new QA1 coilover springs identified by manufacturer part number 12CS300, with only the components and hardware supplied by QA1 for that exact part number.
About QA1
QA1 develops suspension, steering, driveline, rod-end, bearing, spring, and chassis components for street, performance, racing, restoration, and custom vehicle applications.
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Frequently Asked Questions
How do I confirm QA1 12CS300 is compatible with my build?
Compare every listed dimension, thread size and direction, mount, travel range, spring rate or load requirement, clearance, and mating component with the planned assembly.
What measurements matter when ordering QA1 12CS300?
Verify the dimensions and interfaces named in this listing, including thread size and direction, extended and compressed length, bore, spring dimensions or rate, mounting style, and available clearance as applicable.
Does QA1 12CS300 require setup after installation?
Suspension and steering work commonly requires torque verification, clearance and travel checks, ride-height or damping setup when adjustable, and a professional alignment before road use.
Installation
Follow the current QA1 instructions for this exact part number. Support the vehicle safely, compare every component before disassembly, use the specified hardware and torque values, verify thread engagement and mounting orientation, cycle the suspension through its operating range, check brake and wheel clearance, and complete an alignment when the installation changes suspension or steering geometry.
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