{"product_id":"xdp-performance-valve-springs-retainer-kit-for-98-5-18-5-9-6-7-cummins-xd313","title":"XDP Performance Valve Springs \u0026 Retainer Kit For 1998.5-2018 5.9L\/6.7L Cummins 24-Valve","description":"\u003csection data-scroll=\"\" class=\"cmp-product-section cmp-product-description open animate--fade-in\"\u003e\n\u003cdiv class=\"cmp-product-section__inner\"\u003e\n\u003cdiv class=\"cmp-product-description__content\"\u003e\n\u003csection data-scroll=\"\" class=\"cmp-product-section cmp-product-description open animate--fade-in\"\u003e\n\u003cdiv class=\"cmp-product-section__inner\"\u003e\n\u003cdiv class=\"cmp-product-description__content\"\u003e\n\u003cp\u003eControl the valvetrain in your 1998.5–2018 Dodge Ram 5.9L or 6.7L 24-Valve Cummins with the XDP XD313 Performance Valve Springs and Retainer Kit. Factory valve springs are not designed for the elevated boost pressures and higher RPMs that accompany performance upgrades such as aftermarket turbochargers and custom tuning. When exposed to these conditions, stock springs can cause valve float or reversion—allowing exhaust gases to reenter the cylinder and reducing engine performance. The XD313 Kit ensures proper valve control, eliminating float and improving engine stability under boost.\u003c\/p\u003e\n\u003cp\u003eThe XDP Performance Valve Springs feature a conical spring design that enhances control while reducing weight. Each spring is precision load mapped, matched within one pound of seat pressure, and stress-relieved for consistent performance and long-term reliability. This kit can support applications from stock to 2,000 horsepower competition builds, making it a one-time upgrade for any high-performance Cummins build. Each kit includes springs, retainers, and locks for complete installation and is backed by XDP’s 2-Year Unlimited Mileage\u003c\/p\u003e\n\u003cp\u003eThese valve springs require a spring pocket size of 1.190\" or larger. If needed, any competent machine shop will be able to cut a larger spring pocket. In some rare instances the spring pocket may be too small due to OEM machining inconsistencies only on 1998.5–2002 models\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConical spring design increases valve control and reduces weight\u003c\/li\u003e\n\u003cli\u003e100 lb seat pressure ensures valve stability under high boost\u003c\/li\u003e\n\u003cli\u003ePrevents valve float and reversion for improved performance\u003c\/li\u003e\n\u003cli\u003eSupports high-horsepower builds up to 2,000 horsepower\u003c\/li\u003e\n\u003cli\u003eIdeal for turbocharged and tuned Cummins performance engines\u003c\/li\u003e\n\u003cli\u003ePrecision load-matched within 1 lb of seat pressure tolerance\u003c\/li\u003e\n\u003cli\u003eStress-relieved for long-term reliability and consistent pressure\u003c\/li\u003e\n\u003cli\u003eIncludes locks, retainers, and springs for complete installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: XDP (Xtreme Diesel Performance)\u003c\/li\u003e\n\u003cli\u003ePart Number: XD313\u003c\/li\u003e\n\u003cli\u003eApplication: 24-Valve 5.9L \u0026amp; 6.7L Cummins Diesel Engines\u003c\/li\u003e\n\u003cli\u003eSpring Design: Conical\u003c\/li\u003e\n\u003cli\u003eSeat Pressure: 100 lbs\u003c\/li\u003e\n\u003cli\u003eHorsepower Rating: Supports up to 2,000 HP\u003c\/li\u003e\n\u003cli\u003eMaterial: Heat-Treated Spring Steel\u003c\/li\u003e\n\u003cli\u003eFinish: Natural\u003c\/li\u003e\n\u003cli\u003eIncluded Components: Springs, Retainers, Locks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(24) Performance Valve Springs \u003c\/li\u003e\n\u003cli\u003e(24) Retainers \u003c\/li\u003e\n\u003cli\u003e(24) Valve Locks \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitmen\u003c\/strong\u003e\u003cstrong\u003et:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1998.5–2002 Dodge Ram 2500 5.9L 24-Valve Cummins\u003c\/li\u003e\n\u003cli\u003e1998.5–2002 Dodge Ram 3500 5.9L 24-Valve Cummins\u003c\/li\u003e\n\u003cli\u003e2003–2007 Dodge Ram 2500 5.9L 24-Valve Cummins\u003c\/li\u003e\n\u003cli\u003e2003–2007 Dodge Ram 3500 5.9L 24-Valve Cummins\u003c\/li\u003e\n\u003cli\u003e2007.5–2018 Dodge Ram 2500 6.7L 24-Valve Cummins\u003c\/li\u003e\n\u003cli\u003e2007.5–2018 Dodge Ram 3500 6.7L 24-Valve Cummins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 Year \/ Unlimited Mileage Warranty\u003c\/li\u003e\n\u003cli\u003eNot legal for sale or shipment to California\u003c\/li\u003e\n\u003cli\u003eThese valve springs require a spring pocket size of 1.190\" or larger\u003c\/li\u003e\n\u003cli\u003eIf needed, any competent machine shop will be able to cut a larger spring pocket\u003c\/li\u003e\n\u003cli\u003eIn some rare instances the spring pocket may be too small due to OEM machining inconsistencies only on 1998.5–2002 models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch5\u003e\n\u003cimg border=\"0\" align=\"left\" alt=\"\" src=\"https:\/\/www.xtremediesel.com\/images\/icon_1YearWarranty.jpg\"\u003eWARRANTY INFO:\u003c\/h5\u003e\n\u003cdiv\u003eProducts manufactured by XDP carry a 2-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to two (2) year from the date of sale and limited solely to the parts contained within the product's kit. \u003ca href=\"https:\/\/www.xtremediesel.com\/xtreme-diesel-performance-xdp-product-warranty-availability#warranty\"\u003eClick Here for full warranty policy.\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection data-scroll=\"\" class=\"cmp-product-section cmp-product-specification animate--fade-in\"\u003e\u003c\/section\u003e","brand":"XDP","offers":[{"title":"Default Title","offer_id":45074694307997,"sku":"XD313","price":487.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/2504\/1821\/files\/F198707576.jpg?v=1713408870","url":"https:\/\/rudysdiesel.com\/products\/xdp-performance-valve-springs-retainer-kit-for-98-5-18-5-9-6-7-cummins-xd313","provider":"Rudy's Performance Parts","version":"1.0","type":"link"}