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The LML Duramax stock CP4 pump is not only fail prone but is only capable of supporting around 500 horse. One of the many reasons to do a LML CP3 swap is the catastrophic failure the CP4 can cause, when CP4 failure occurs most of the time metal shards are sent through the injector lines to your injectors and if made to the cylinder complete engine failure will happen. The GM Duramax is a beast of a diesel engine and since Fleece has released the CP3 conversion it now easy to swap the faulty, less reliable and less capable CP4 for a reliable CP3 pump. The proven Fleece CP3K swap is capable of supporting 600+ horse and provides the most important thing to your LML, Reliability.
Convert your LML's Fuel System from a error prone CP4 to a rock solid Durmax LML CP3 pump
Kit Contents:
High Pressure Fuel Rail Line
Fuel Rail Plug and Nut
CP3 Block Adapter with O-ring
(3) CP3 Block Adapter Bolts (Flange Head, M8x1.25x35mm)
CP3 Pump Fittings – 3/8”
CP3 Pump Fittings – 1/2"
(2) Sealing Washers
Low Pressure Fuel Feed Line –
3/8”x8” Flexible Fuel Line with Hose Clamps (CP3 Return)
1/2”x30” Flexible Fuel Line with Hose Clamps (Filter to CP3)
3/4” P-Clamp
Fuel Return Line Block Off with O-ring
NO CORE CHARGE ON CP3 PUMP!
No Tuning Required for this LML CP3 Conversion
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.
