{"product_id":"firestone-coil-rite-air-helper-spring-kit-rear-07-17-jeep-wrangler-unlimited-w237604173","title":"Firestone Coil-Rite Air Helper Spring Kit (REAR): Jeep Wrangler 2007-2018 3.8L\/3.6L","description":"\u003ch1\u003eFirestone Coil-Rite Air Helper Spring Kit (REAR)\u003c\/h1\u003e\n\u003ch2\u003e2007–2018 Jeep Wrangler 3.8L V6 \/ 3.6L V6\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart #:\u003c\/strong\u003e 4173\u003c\/p\u003e\n\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Firestone Coil-Rite Air Helper Spring Kit is engineered to enhance the ride quality and handling of Jeep Wrangler models equipped with coil spring suspensions. Designed to fit seamlessly inside your vehicle’s existing rear coil springs, this air helper spring kit provides a variable spring rate that adapts to changing loads and road conditions. Whether you’re carrying heavy cargo or towing, Coil-Rite helps level your Jeep Wrangler, improving stability, braking efficiency, and overall control.\u003c\/p\u003e\n\u003cp\u003eIdeal for Jeep Wrangler owners who demand a smoother, safer ride without sacrificing comfort, the Coil-Rite system allows you to fine-tune your suspension performance by adjusting air pressure as easily as inflating a tire. This flexibility ensures optimal support whether you’re on the highway, off-road, or navigating uneven terrain.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003eThe Firestone Coil-Rite Air Helper Spring Kit offers a range of benefits designed to improve your Jeep Wrangler’s suspension performance:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits inside existing rear coil springs for a clean, factory-like installation\u003c\/li\u003e\n  \u003cli\u003eProvides a variable spring rate that adjusts to load and road conditions\u003c\/li\u003e\n  \u003cli\u003eSupports an additional 500 to 1000 lbs. per set, enhancing load-carrying capacity\u003c\/li\u003e\n  \u003cli\u003eEnables easy air pressure adjustments to customize ride firmness and handling\u003c\/li\u003e\n  \u003cli\u003eImproves vehicle leveling, braking, and handling under heavy loads\u003c\/li\u003e\n  \u003cli\u003eDurable polyurethane construction resists wear, cracking, and weather extremes\u003c\/li\u003e\n  \u003cli\u003eOperates reliably in temperatures ranging from -40°F (-40°C) to 180°F (82°C)\u003c\/li\u003e\n  \u003cli\u003eCompatible with 2007–2011 Jeep Wrangler 3.8L V6, 2012–2017 Jeep Wrangler 3.6L V6, and 2018 Jeep Wrangler JK 3.6L V6 models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConstruction \u0026amp; Design\u003c\/h3\u003e\n\u003cp\u003eFirestone Coil-Rite air helper springs are crafted from high-quality, elastic polyurethane, a material known for its durability and resistance to environmental stressors. This robust construction ensures long-lasting performance and comfort, even under demanding conditions. The air springs are designed to fit snugly inside your Jeep Wrangler’s coil springs, maintaining the original suspension geometry while providing additional support.\u003c\/p\u003e\n\u003cp\u003eThe innovative design allows the air helper springs to compress and expand with your vehicle’s suspension travel, delivering a smooth, controlled ride. The system’s ability to vary spring rate through air pressure adjustments offers a customizable driving experience tailored to your specific load and terrain.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eInstallation of the Firestone Coil-Rite Air Helper Spring Kit is straightforward and requires no permanent modifications to your Jeep Wrangler’s suspension. The kit fits inside the rear coil springs of 2007–2018 Jeep Wrangler models with 3.8L or 3.6L V6 engines. It is compatible with the JK generation and earlier models within the specified years.\u003c\/p\u003e\n\u003cp\u003eMost installations can be completed with basic hand tools and do not require specialized equipment. The system includes all necessary components for mounting and inflation, allowing you to quickly adjust air pressure to suit your load and driving conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo polyurethane air helper springs designed for rear coil springs\u003c\/li\u003e\n  \u003cli\u003eAir lines and fittings for inflation and pressure adjustment\u003c\/li\u003e\n  \u003cli\u003eMounting hardware and installation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cp\u003eThis air helper spring kit is perfect for Jeep Wrangler owners who frequently carry heavy loads, tow trailers, or encounter rough terrain. It is especially beneficial for those seeking improved ride comfort, vehicle leveling, and enhanced handling without upgrading to a full suspension system. Whether you use your Wrangler for daily driving, off-roading, or work-related hauling, the Coil-Rite system provides reliable support and adaptability.\u003c\/p\u003e","brand":"Firestone","offers":[{"title":"Default Title","offer_id":48209052598484,"sku":"4173","price":158.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/10db5603403043c34f37a31842539935_81ec231f-29da-437c-b90f-d2990413fee8.jpg?v=1783234919","url":"https:\/\/fasthemis.com\/products\/firestone-coil-rite-air-helper-spring-kit-rear-07-17-jeep-wrangler-unlimited-w237604173","provider":"FastHemis","version":"1.0","type":"link"}