OEM fit and finish for easy installation! All parts are premium ISO/TS 16949 quality. Our parts are engineered and manufactured to meet or exceed the standards of the Original Equipment. Each part is run through rigorous testing before it leaves the factory. As one of the world’s largest automotive parts suppliers, our parts are trusted every day by mechanics and vehicle owners worldwide. This Air Suspension Helper Spring Kit is manufactured and tested to the strictest OE car and truck standards for unparalleled performance. Built for trouble-free ownership and 100% visually inspected and quality tested, this Air Suspension Helper Spring Kit is backed by our 100% satisfaction guarantee. Part Type: Air Suspension Helper Spring Kit. Pre Runner – RWD – Rear. OEM Fit and Finish. Our parts are expertly built and cataloged. Your order will fit your vehicle exactly as an OEM part would, allowing for easy installation. We are here to help! Return your order for any reason, within 60 days. 30+ years of Experience! BuyAutoParts has offered an extensive selection of auto parts, performance parts, and automotive accessories since 1989.