{"product_id":"5658294-cummins-x15-single-cam-cylinder-head-stage-3-inconel-valves","title":"5658294 Cummins X15 Single Cam Cylinder Head Stage 3 Inconel Intake \u0026 Exhaust Valves","description":"\u003cp\u003e\u003cspan\u003eJAK's Stage 3 X15 Single Cam Cylinder Head with Full Inconel Valves JAK's Stage 3 X15 Cylinder Head represents the pinnacle of performance and durability for X15 engines, offering a robust upgrade for high-demand applications. Engineered for seamless compatibility with X15 engines, this head features an OE-equivalent casting material enhanced with premium Inconel valves on both the intake and exhaust sides. Unlike the Stage 1, which uses standard valves, or the Stage 2, which incorporates Inconel valves only on the intake side, the Stage 3 delivers maximum resilience with Inconel valves throughout, providing superior resistance to extreme heat, pressure, corrosion, pitting, and fracturing. The use of Inconel valves for both intake and exhaust ensures exceptional performance under the most intense conditions, such as those encountered with high-horsepower modifications like marine camshafts, high-flow injectors, or large turbochargers. These valves withstand blistering temperatures and high-pressure environments, preventing common issues like valve fracturing, which can occur with standard valves in performance-tuned engines. This makes the Stage 3 ideal for heavy-duty applications, including fleet trucks, marine vessels, or racing setups, where reliability and longevity are critical. The Stage 3 cylinder head combines cost-effective engineering with top-tier materials, offering unmatched durability and performance for enthusiasts and professionals pushing their X15 engines to the limit. Note: Any references to OEM names, product IDs, descriptions, or model numbers are used solely for identification purposes and do not imply that this is an OEM part.\u003c\/span\u003e\u003c\/p\u003e","brand":"JAK's Diesel","offers":[{"title":"Default Title","offer_id":45762011168953,"sku":null,"price":4038.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6171\/4361\/files\/J4298234IV.png?v=1766804927","url":"https:\/\/www.jaksdiesel.com\/products\/5658294-cummins-x15-single-cam-cylinder-head-stage-3-inconel-valves","provider":"JAKs Diesel","version":"1.0","type":"link"}