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-QA1 2-1/2in ID High Travel Spring - 10in Length x 400lbs/in - Silver Powder Coated-Coilover Springs-QA1
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QA1 2-1/2in ID High Travel Spring - 10in Length x 400lbs/in - Silver Powder Coated

QA1
QAP10HT400
806990112781
Coilover Springs
20+ Units In Stock - Ships Next Business Day
$ 88.57 $ 79.95
$ 79.95

SKU: 10HT400 | UPC: 806990112781

QA1 2-1/2in ID High Travel Spring - 10in Length x 400lbs/in - Silver Powder Coated

QA1 10HT400 delivers a high travel coil spring designed for coilover suspensions in racing, drag racing, street performance and street rodding applications. This 2-1/2 inch inner diameter spring measures 10 inches in free length with a 400 lb/in rate, crafted from chrome silicon alloy for reduced weight and extended travel. It drops unsprung mass, improves suspension response and handles coil bind without rate loss or height change.

Key Features

  • Chrome Silicon Construction: High-tensile alloy wire enables fewer coils, smaller diameter and lighter weight while boosting fatigue life through heat treatment, shot peening and post-processing.
  • Increased Travel Design: Larger spacing between coils provides more suspension travel, quicker reaction times and optimized performance in high-demand setups.
  • Silver Powder Coat Finish: Durable coating resists corrosion and ensures long-lasting appearance under racing conditions.
  • Ground and Squared Ends: Precision grinding at both ends delivers straight, consistent seating and accurate operation in coilover assemblies.
  • Marked Specifications: Clearly labeled free length and rate for fast identification during installs or inventory.

Product Notes

  • Compresses to coil bind without impacting spring rate or free height.
  • Lifetime guarantee keeps free height and rate within 2% under normal use.
  • Special order item, verify stock before purchase.

Installation Notes

  • Professional installation recommended.
  • Requires 2.5in ID coilover body or compatible strut insert.
  • Use factory or QA1 hardware for secure mounting. torque to spec.

This Part Fits

Year Make Model Submodel
Universal - Coilover Applications Racing/Drag/Street Performance

Why Choose QA1?

  • Over 30 years leading rod ends, bearings and suspension for motorsports.
  • 83,000 sq ft USA facility manufactures consistent, durable components.
  • Innovates with carbon fiber driveshafts and high-performance springs.

Frequently Asked Questions

  • Q: What applications does the QA1 10HT400 fit?
    A: Universal for 2.5in ID coilovers in circle track, drag racing, street performance and rodding vehicles.
  • Q: What material and finish are used?
    A: Chrome silicon steel, cold wound, heat treated, shot peened with silver powder coat for strength and corrosion resistance.
  • Q: What is the warranty coverage?
    A: Lifetime guarantee to hold within 2% of original free height and rate under normal operating conditions.

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Protective box, 12in x 4in x 4in
  • Weight: 5.3 lbs

Request For Information

Have questions about QA1 2-1/2in ID High Travel Spring - 10in Length x 400lbs/in - Silver Powder Coated? Fill out the form below and we'll get back to you by the next business day.
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