SWIFT SPRINGS 040-250-400 Swift Springs 040-250-400 Coil-Over Barrel Spring, 400 lb/in, Steel, Black Powder Coat

The Swift Springs 040-250-400 coil-over barrel spring is designed for suspension applications that require consistent spring performance, dependable construction, and precise rate selection. With a 400 lb/in spring rate, this steel coil spring supports controlled suspension response while helping maintain predictable handling characteristics during driving and competition use. Its barrel-style design is suited for compatible coil-over shock and suspension assemblies.
The spring is manufactured from durable steel and finished with a black powder coat for added surface protection and a clean, professional appearance. The finish helps resist common handling wear and environmental exposure, while the precision-formed coil supports reliable operation through repeated suspension cycles. This spring is supplied individually, making it suitable for replacement, setup changes, or suspension tuning when matched to the vehicle and coil-over system requirements.
Use the Swift Springs part number 040-250-400 when confirming compatibility with your suspension setup. Verify the required inner diameter, free length, spring rate, installed height, and available travel before installation, as coil-over components must be selected to match the shock body, spring hardware, vehicle weight, and intended use. Professional installation and proper suspension adjustment are recommended to ensure correct preload, clearance, and safe operating performance.

Features:

• Brand: Swift Springs

• Part Number: 040-250-400

• Application: Coil-over suspension systems

• Spring Style: Barrel coil spring

• Spring Rate: 400 lb/in

• Construction: Durable steel

• Finish: Black powder coat

• Packaging: Sold individually