2011-2016 LML CP3 Conversion Kit
SKU: 42635075152

2011-2016 LML CP3 Conversion Kit

Sale price$364.95 Regular price$405.50
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Ships within 48 hours Β· Estimated delivery Jul 6 - Jul 11

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Description

2011-2016 LML CP3 Conversion KitWhy convert your LML's Fuel System from a CP4 to a CP3 Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms, resulting in costly repairs for owners when a CP4 fails. Our CP3 conversion kit lets you easily adapt a CP3 to your 2011 2016 Duramax. In conjunction with the piezoelectric injectors, a CP3K conversion is capable of supporting 600+ rwhp and a PowerFlo 750 conversion is

Why convert your LML's Fuel System from a CP4 to a CP3

Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms, resulting in costly repairs for owners when a CP4 fails. Our CP3 conversion kit lets you easily adapt a CP3 to your 2011-2016 Duramax. In conjunction with the piezoelectric injectors, a CP3K conversion is capable of supporting 600+ rwhp and a PowerFlo 750 conversion is capable of supporting nearly 850+ rwhp.

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 LineΒ 
  • 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

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WARNING

  • This product is not legal in the state of California.
  • When used incorrectly this product may violate local, state, and federal laws pertaining to emissions, traffic, registration, and safety.
  • Use of this product may damage or destroy mechanical and/or electrical components of this vehicle.
  • Use of this product may void or nullify the vehicles factory warranty.
  • User understands that motorsports are dangerous, and that installation of this product may subsequently require special driving skills or techniques to safely operate the vehicle.
  • User assumes sole responsibility for the safe, proper, and legal use of the vehicle at all times.
  • The purchaser and end user releases, indemnifies, discharges, and holds harmless Fleece Performance Engineering, Inc. from any and all claims, damages, causes of action, injuries, or expenses resulting from or relating to the use or installation of this product that is in violation of the terms and conditions on this page, the product disclaimer, and/or the product installation instructions. Fleece Performance Engineering, Inc. will not be liable for any direct, indirect, consequential, exemplary, punitive, statutory, or incidental damages or fines cause by the use or installation of this product.
  • This product may not work with the EGR cooler installed. It may need to be removed.
  • This product MUST be used in conjunction with custom tuning calibrations from Fleece Performance.Β Failure to install the correct calibrations can result in engine damage.

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Prop 65WARNING: Cancer & Reproductive Harm -Β P65Warnings.ca.govΒ 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42635075152

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Pamela S. Brown
Whiting, US
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Great value
Size: 9.5, Color: Black
I absolutely adore these sandals. They are comfortable and super urban. Worth there value all the way around!
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Ashlyn Keller Silver
Boise, US
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Soooo comfy!
Size: 9.5, Color: Chestnut Suede
These run a tad big but comfy and great for wide feet or to hide bunions ( like mine).
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Reviewed in the United States on May 19, 2026
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Angela R.
West Palm Beach, US
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Best shoes eve
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Very comfortable
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kelli a taylor
Draper, US
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Super cute, but you could break your ankle
Size: 8.5, Color: Chestnut Suede
I gave these a five star because they are very comfortable and very stylish. However, beware you could potentially roll or break your ankle in these. There is not a lot of support and they feel mushy and you may just be walking through your house and your ankle will be on the ground.
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Wilson
Chelsea, US
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Comfy and perfect for every day wear
Size: 10, Color: Smoke Plume Suede
Love the shoes! My new favorite pair to wear. Extremely comfortable and soft. Highly recommend purchasing if you have a wider foot or need comfortable casual shoes
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