{"product_id":"firestone-coil-rite-air-helper-spring-kit-4155","title":"Firestone Coil-Rite Air Helper Spring Kit (MPN: 4155)","description":"\u003ch2\u003eEnhance vehicle stability and comfort with adjustable air springs.\u003c\/h2\u003e\r\n\u003cp\u003eThe Firestone Coil-Rite Air Helper Spring Kit is designed to improve the ride quality, handling, and braking performance of vehicles equipped with coil spring suspensions. This innovative air spring system fits inside existing coil springs, providing additional support and creating a variable rate spring that adapts to varying loads and road conditions. Made from durable polyurethane, these air helper springs are engineered to withstand the demands of coil-sprung suspensions, ensuring long-lasting performance and comfort.\u003c\/p\u003e\r\n\u003cp\u003eWith a leveling capacity of 500 to 1000 pounds, the Coil-Rite air helper springs allow for precise adjustment of air pressure between 5 to 35 PSI, enabling users to tailor the suspension to their specific needs. This feature not only enhances vehicle stability but also absorbs road shocks, resulting in a smoother ride for both passengers and cargo. The system helps maintain a level vehicle stance, improving steering control, braking effectiveness, and reducing tire wear.\u003c\/p\u003e\r\n\u003cp\u003eInstallation is straightforward, requiring no drilling, and includes all necessary components such as air springs, brackets, air line, and hardware for a quick setup. The Firestone Coil-Rite Air Helper Spring Kit is an effective solution for those looking to optimize their vehicle's performance under heavy loads and challenging driving conditions.\u003c\/p\u003e\r\n\u003ch3\u003eFeatures\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003eMade Of Durable Polyurethane To Withstand The Rigors Of Coil-Sprung Suspensions\u003c\/li\u003e\r\n    \u003cli\u003eIncrease Vehicle Stability: Absorbs Road Shock Providing A Smooth Ride For Passengers And Load\u003c\/li\u003e\r\n    \u003cli\u003eKeep The Vehicle Level: Improves Steering Control And Braking Effectiveness, Levels Headlight Beams And Reduces Tire Wear\u003c\/li\u003e\r\n    \u003cli\u003eReduce Bottoming Out: Protective Air Cushion Softens Contact Between The Axle And Frame\u003c\/li\u003e\r\n    \u003cli\u003eDiscover The Difference Coil-Rite Air Helper Springs Can Make In Improving The Ride, Handling And Braking Of Your Vehicle\u003c\/li\u003e\r\n    \u003cli\u003eNo Drill Installation\u003c\/li\u003e\r\n    \u003cli\u003eEverything Is Included For A Quick, Easy Installation. Brackets, Air Springs, Hardware, Air Line, And Separate Valves For Manual Inflation\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003eManufacturer: Firestone Industrial\u003c\/li\u003e\r\n    \u003cli\u003eManufacturer Part Number: 4155\u003c\/li\u003e\r\n    \u003cli\u003eType: Air Spring\u003c\/li\u003e\r\n    \u003cli\u003eLoad Capacity: 1000 Pound\u003c\/li\u003e\r\n    \u003cli\u003eWith Air Compressor: No\u003c\/li\u003e\r\n    \u003cli\u003eColor: Black\u003c\/li\u003e\r\n    \u003cli\u003eQuantity: Set Of 2\u003c\/li\u003e\r\n    \u003cli\u003ePressure Range: 5 To 35 Pounds Per Square Inch\u003c\/li\u003e\r\n    \u003cli\u003eMaterial: Urethane\u003c\/li\u003e\r\n    \u003cli\u003eMounting Type: Coil Spring Mount\u003c\/li\u003e\r\n    \u003cli\u003eWith Bellows: No\u003c\/li\u003e\r\n    \u003cli\u003eWith Air Line: Yes\u003c\/li\u003e\r\n    \u003cli\u003eWith Roll Plate: No\u003c\/li\u003e\r\n    \u003cli\u003eWith Valve: Yes\u003c\/li\u003e\r\n    \u003cli\u003eRemote Type: Not Applicable\u003c\/li\u003e\r\n    \u003cli\u003eWith Mounting Hardware: Yes\u003c\/li\u003e\r\n    \u003cli\u003eEstimated Install Time (Hours): 1\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eCompatibility \/ Fit\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003e2005-2007 Buick Terraza\u003c\/li\u003e\r\n    \u003cli\u003e2005-2008 Chevrolet Uplander\u003c\/li\u003e\r\n    \u003cli\u003e2005-2007 Saturn Relay\u003c\/li\u003e\r\n    \u003cli\u003e2004-2025 Toyota Sienna\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eTechnical Documents\u003c\/h3\u003e\n\u003cul\u003e\r\n    \u003cli\u003e\u003ca href=\"https:\/\/vehiclepartimages.com\/PMDT\/FRS\/InstallationInstructions\/W237604155.pdf\" target=\"_blank\"\u003eW237604155.pdf\u003c\/a\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eProduct Videos\u003c\/h3\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/vehiclepartimages.com\/PMDT\/FRS\/Videos\/Firestone%20%20Benefits%20of%20Air%20Springs%20360p.mp4?autoplay=0\" loading=\"lazy\" style=\"max-width: 560px; width: 100%; aspect-ratio: 560\/360;\" frameborder=\"0\" allow=\"accelerometer; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\r\n","brand":"NTP-Stag","offers":[{"title":"Default Title","offer_id":47196080079087,"sku":"F364155","price":183.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1583\/3619\/files\/4155.png?v=1767376763","url":"https:\/\/www.sprinterpartsdepot.com\/products\/firestone-coil-rite-air-helper-spring-kit-4155","provider":"Sprinter Parts Depot","version":"1.0","type":"link"}