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WEHRLI Street Series CP3 Conversion Kit 2011-2016 Duramax LML
Billet Anodized CP3 Pump Mount Plate
-High Pressure Fuel Line
-High Pressure Rail Plug & Cap
-Fuel line and Clamps
-Stainless CP3 Feed and Return Barb Fittings
-9th Injector Line Plug
-Stainless Hardware
-Requires Custom ECM Tuning
The Factory CP4.2 Pump Found on 2011 and newer Duramax's has been known to be a problematic component. Even the slightest amount of fuel or water contamination can ruin the pumps internals leading to metal debris flushing throughout the entire fuel system. When these pumps fail it can lead to a repair job usually including all new injectors, fuel system sensors, fuel lines, and complete cleaning of the fuel tank and costing $8,000+. We set out to develop a solution for this issue and came to market with the first CP3 Conversion kit in 2013. The WCFab kit is tried and true and offers some items that other kits on the market today do not. A common issue we encountered is customers installing the CP3 Pump would break the brittle cast aluminum OEM pump mount bracket, so we designed a stronger Billet Aluminum piece to replace it and have not had an issue since.
The street kit is recommended for use with Stock and Sportsman CP3 Pumps and mild performance builds. Any truck that is used in a performance application and is no longer under warranty we strongly recommend replacing the pump with the more robust and proven CP3 pump from WCFab. If your setup needs more power, we recommend stepping up to our Race Series Kit which uses a longer and larger I.D. High-Pressure Line than the Street Series Kit and ALL other CP3 Conversion Kits offered on the market, which allows for more fuel volume and is ideal for use with 10mm, 12mm, and 14mm pumps. The high pressure fitting at the rail is also a larger I.D. as compared to the standard location that the Street Kit & other manufactures feed to, which allows for more flow!
Requires Custom ECM Tuning
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.
