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The Duramax Rocker Spacer Kit was designed to eliminate the factory springs in between the rockers to keep the rockers properly aligned to OE spec under high load and high rpm conditions.
The factory springs allow the rocker arm shafts to move around which can cause improper valve lift and irregular wear on the valves and rocker arms.
Our high performance rocker arm spacers prevent this from happening and allow your engine to operate more efficiently and more reliably under high stress conditions.
This kit is deigned to work with 2001-2004 LB7, 2004.5-2005 LLY, 2006-2007 LBZ, 2007.5-2010 LMM, 2011-2016 LML Duramax engines.
Features:
Designed to work with 2001-2004 LB7, 2004.5-2005 LLY, 2006-2007 LBZ, 2007.5-2010 LMM, 2011-2016 LML Duramax engines.
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, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.
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.
Coops Custom offers custom products and custom bundles with certain products, if you have a major project and you need more than one part please contact us at 800-214-6218.
Fender Flares: | Available in color match colors. |
Colored Matched Bud Shields: | Most of our AVS bug shield are avialble in color match. |
Power Combos: | We offer bundles of tuners, exhausts and air intakes. |
wheels and Tires: | Coops offers mounted and balanced Wheel and Tire Combos. |
Coops Customs General Aftermarket Auto Part FAQ.