{"product_id":"hellwig-helper-spring-kit-3511","title":"Hellwig Helper Spring Kit (MPN: 3511)","description":"\u003ch2\u003eEnhance load capacity with advanced leaf spring technology.\u003c\/h2\u003e\r\n\u003cp\u003eThe Hellwig Helper Spring Kit is engineered to improve the load carrying capacity of full-size pickup trucks and vans. This kit features a leaf spring design that utilizes heat treated ASTM 5160 alloy spring steel, ensuring durability and stability under heavy loads. With a load capacity of 3500 pounds, this spring kit is designed to meet the demands of various applications while maintaining vehicle performance.\u003c\/p\u003e\r\n\u003cp\u003eThe kit includes a set of two springs, available in both progressive and constant rate designs. The progressive design activates under load, providing increased resistance as weight is added, while the constant rate design offers immediate response to load changes. This versatility allows for optimal performance based on the specific needs of the vehicle.\u003c\/p\u003e\r\n\u003cp\u003eInstallation is straightforward with a simple bolt-on design that requires common hand tools, making it accessible for both professional installers and DIY enthusiasts. Note that a mounting kit is required for proper installation, which is sold separately. The Hellwig Helper Spring Kit is a reliable solution for enhancing vehicle load capacity and stability.\u003c\/p\u003e\r\n\u003ch3\u003eFeatures\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003eManufactured With Heat Treated ASTM 5150 Alloy Spring Steel. Increased Spring Rate And Stability\u003c\/li\u003e\r\n    \u003cli\u003eHeavier Loads\u003c\/li\u003e\r\n    \u003cli\u003e4 Leaf Stack\u003c\/li\u003e\r\n    \u003cli\u003e3500 Pounds Level Load Capacity\u003c\/li\u003e\r\n    \u003cli\u003eAvailable In Progressive Or Constant Rate\u003c\/li\u003e\r\n    \u003cli\u003eOffers The Maximum In Carrying Capacity\u003c\/li\u003e\r\n    \u003cli\u003eSimple Bolt-On Design Using Common Hand Tools Provide The Installer Ease Of Installation And The Vehicle Owner Hassle Free Use\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003eManufacturer: Hellwig\u003c\/li\u003e\r\n    \u003cli\u003eManufacturer Part Number: 3511\u003c\/li\u003e\r\n    \u003cli\u003eType: Leaf Spring\u003c\/li\u003e\r\n    \u003cli\u003eLoad Capacity: 3500 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: Not Applicable\u003c\/li\u003e\r\n    \u003cli\u003eMaterial: Steel\u003c\/li\u003e\r\n    \u003cli\u003eMounting Type: Axle Mount\u003c\/li\u003e\r\n    \u003cli\u003eWith Bellows: No\u003c\/li\u003e\r\n    \u003cli\u003eWith Air Line: No\u003c\/li\u003e\r\n    \u003cli\u003eWith Roll Plate: No\u003c\/li\u003e\r\n    \u003cli\u003eWith Valve: No\u003c\/li\u003e\r\n    \u003cli\u003eRemote Type: Not Applicable\u003c\/li\u003e\r\n    \u003cli\u003eWith Mounting Hardware: No\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\u003e2011-2026 Ford F-250 Super Duty\u003c\/li\u003e\r\n    \u003cli\u003e2011-2026 Ford F-350 Super Duty\u003c\/li\u003e\r\n    \u003cli\u003e2016-2026 Ford F-450 Super Duty\u003c\/li\u003e\r\n    \u003cli\u003e2016-2025 Ford F-550 Super Duty\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\/HWG\/InstallationInstructions\/135000208.pdf\" target=\"_blank\"\u003e135000208.pdf\u003c\/a\u003e\u003c\/li\u003e\r\n    \u003cli\u003e\u003ca href=\"https:\/\/vehiclepartimages.com\/PMDT\/HWG\/Warranty\/Hellwig_Warranty1.pdf\" target=\"_blank\"\u003eHellwig_Warranty1.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\/HWG\/Videos\/How%20Helper%20Springs%20Work.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":47223582458095,"sku":"H633511","price":519.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1583\/3619\/files\/3511.jpg?v=1767376338","url":"https:\/\/www.sprinterpartsdepot.com\/products\/hellwig-helper-spring-kit-3511","provider":"Sprinter Parts Depot","version":"1.0","type":"link"}