{"product_id":"d-504-24v-12","title":"1999-19 5.9L 24 Valve Cummins - Series 5 Pushrod, Performance Upgraded Tube Diameter 7\/16 x .120 Wall, Factory Length - 1 Set of 12","description":"\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManton 1999-19 5.9L 24 Valve Cummins Pushrods Series 5\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eProven in top motorsports, Series 5 pushrods are the strongest and most durable chromoly options available. Upgrade your 24v Cummins pushrods for improved valve train stability and performance. Stock 3\/8 diameter pushrods, nearly 11.5 inches long, aren’t adequate beyond stock applications. When pushrod stress exceeds reasonable limits, OEM pushrods can’t support additional valve train loads.\u003c\/p\u003e\u003cp\u003eWe offer 3\/8 and 7\/16 diameter 3-piece pushrods made from 4130\/4135 seamless Chromoly tubing Heat treated. Standard billet steel tip ends are CNC machined from 86L20 bar stock, then core hardened and triple tempered for durability. These materials and treatments extend pushrod service life and enhance valve train performance. Our engineering adapts to your engine’s needs, ensuring optimal fit and function.\u003c\/p\u003e\u003cp\u003eWe prioritize larger diameter pushrods to distribute loads without cylinder head port binding. The 7\/16 diameter nearly doubles loading capacity before pushrod deflection, making it ideal for Cummins engines. Opt for our Series 5 pushrods in competition engines for enhanced strength and performance. Series 5 provides an extra 105,000 p.s.i. tensile strength over Series 3, improving valve timing accuracy and surge resistance.\u003c\/p\u003e\u003cp\u003eFor custom engine configurations, use our pushrod length checking tools to maintain stock rocker geometry. Correct pushrod length ensures proper rocker arm contact with the valve bridge, preserving valve lift accuracy. Pushrods are crucial for optimal valve train function and longevity, often overlooked in pursuit of performance gains.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFor assistance, contact us at (951)245-6565.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNotify us of any switch to aftermarket tappets needing hybrid Cummins pushrods with different tappet ends.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Manton Diesel","offers":[{"title":"Default Title","offer_id":67809863139527,"sku":"D-504-24V-12","price":492.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/1953\/2743\/files\/IMG_2570__97427.jpg?v=1790952205","url":"https:\/\/mantonpushrods.com\/products\/d-504-24v-12","provider":"Manton Racing Products","version":"1.0","type":"link"}