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The XDP Roller Rocker Arm Assembly Set XD326 is the ultimate upgrade for the rocker arms in your 1998.5-2018 Dodge 5.9L/6.7L Cummins. Your valvetrain components are on borrowed time if your engine is heavily modified.
The XD326 addresses multiple weak points to give you a valvetrain that will support extreme horsepower while giving you the durability and reliability that you've come to expect from your Cummins diesel engine. This set is built using the same materials, components, and manufacturing processes that have been tested and proven in top fuel and blown alcohol racing engines.
The XD326 lets you take the performance and reliability of your truck to the next level. This system is a direct bolt-on and can be used on any application including stock engines and competition/race builds.
Roller Rocker Arm Assemblies
The XDP Roller Rocker Arms feature a revised design with added mass that triples strength over the factory rocker arms. Manufactured from a proprietary grade of heat-treated tool steel for extreme durability. The roller tips drastically reduce friction between the valve bridge and rocker arm, while reducing side thrust on the valve guides to decrease wear. The high load bronze bushing provides a replaceable wear surface and friction reduction when compared to the OEM rocker arms.
Billet Tool Steel Adjusting Screws
The XDP Roller Rocker Arms come with ultra-durable high-quality adjusting screws manufactured from H-13 tool steel that has been heat-treated, triple-tempered, and nitride coated to for long-lasting performance and reliability.
Rocker Arm Trunnion Set
Your OEM Rocker Arm Trunnions are only made to handle stock power levels. Added stress from aftermarket upgrades and increased power quickly maxes out the capabilities and oil flow of the stock trunnions. The XDP Rocker Arm Trunnion set is made from premium tool steel that is hardened and nitride coated. The upgraded trunnions have been machined to increase oil supply for maximum lubrication in the most extreme applications.
Billet Rocker Arm Bridges
The XD326 Roller Rocker Arm Assembly Set is made for serious power and dependability, your factory rocker arm bridges are not. Featuring a CNC machined 4140 billet chromoly construction, the billet rocker arm bridges are able to withstand the added stress from your modified Cummins engine.
Includes: XDP Roller Rocker Arms and Adjustment Screws, XDP Billet Bridges, and XDP Rocker Arm Trunnions
Features:
Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Items with weights ove 100 lbs will be subject to a freight and handling fee.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
These items are not returnable or refundable. Please be aware of this when purchasing
-Opened or Damaged Packages
-Truck Freight items
-Special order items (Any Non Diesel item is Special Order)
-Powder Coated / Custom / Painted Products
-Tuning
-Programmers and Related
-Products containing electrical components.
-Emissions Defeating electronics or equipment (No Exceptions)
Products that ship direct from the manufacturer may have delayed tracking upto 2-3 days or more..
If a product is out of stock or shipping direct from the manufacturer, we will send a notifacation email.
Frequently Asked Question.
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