Coil Spring - Pro-Coil - Coil-Over - 4.125 in ID - 11 in Length - 300 lb/in Spring Rate - Steel - Silver Powder Coat - Each

QA1 4-1/8in ID Tapered High Travel Spring - 11in Length x 300lbs/in - Silver Powder Coated

Additional Information

Coil spring with a 300 lb spring rate. Tapered end. Made with chrome silicon and has a silver powder coated finish. 4.125" inner diameter and a 11" length.

Part Type

Coil Spring

Product Overview

These silver powder coated springs fit perfectly with QA1's Pro Coil Shock Systems. These springs are available with flat and pigtail ends and in 10" and 11" free lengths. Made with the highest quality materials, QA1 springs are strong, consistent and have a long life. All QA1 springs are manufactured using the highest quality materials for high strength, consistency and long life. They are cold wound, heat treated and shot peened to ensure consistency, accuracy and durability. All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation. They are either silver powder coated for excellent longevity, or are polished and chrome plated for the ultimate in appearance. Lengths and rates are clearly marked for quick and easy identification. All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.

• Designed to be as light as possible with maximum travel and superb performance
• Durable powdercoated finish
• Lifetime guarantee to remain within 2% of their original free height
• Made in the USA

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Product Details

Reference Information

Coilover Spring, Pro, Flat Style, 300 lbs./in. Rate, 11 in. Length, 4.10/2.50 in. I.D., Silver Powdercoated, Each

QA1 Pro coilover springs fit perfectly with QA1's front Pro Coil Shock Systems. These springs are available with flat or pigtail ends and in 10 or 11 in. free lengths. Made with the highest quality materials, QA1 springs are strong, consistent, and have a long life. Order the style, size, and spring rate options needed for your application.

Additional details:
• Chrome Silicon steel (CrS) construction for high strength, consistency, and long life
• Cold wound, heat-treated, and shot peened to ensure consistency, accuracy, and durability
• Silver powdercoated for excellent longevity
• High Travel (HT) options have fewer coils and a smaller wire diameter; as a result, they're lighter and have increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance
• Springs are clearly marked with the free length of the spring and spring rate for quick and easy identification
• All QA1 springs are lifetime guaranteed to remain within 2 percent of the original free height and rate under normal operating conditions
• For Mustang struts or rear Pro Coils, see QA1's 2.5 in. I.D. springs