SKU: 51752073577

Fleece Performance 11-16 GM 2500/3500 Duramax LML CP3 Conversion Kit w/CP3

$43731.00 $48590.00
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Description

Fleece Performance 11-16 GM 2500/3500 Duramax LML CP3 Conversion Kit w/CP3Convert your LML's fuel system from a CP4 to a CP3. Improve your LML Duramax's reliability and fueling capability with a CP3 conversion. Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms. Failures of the CP4 are extremely costly and require replacement of the entire fuel system. Avoid a costly failure down the road and convert your CP4 to a CP3 with our complete, no tuning

Convert your LML's fuel system from a CP4 to a CP3. Improve your LML Duramax's reliability and fueling capability with a CP3 conversion. Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms. Failures of the CP4 are extremely costly and require replacement of the entire fuel system. Avoid a costly failure down the road and convert your CP4 to a CP3 with our complete, no tuning required kit for the 2011-2016 LML Duramax platform. Our kits provide you with OEM quality components including a brand new Bosch CP3, Fleece exclusive molded hoses for the fuel feed and return, high flow CP3 fuel fittings, and our valley feed line to support aftermarket lift pump and filter applications. Features: New Bosch CP3 High flow CP3 feed and return fittings Preformed feed and return fuel lines 50-state compliant EO# D-834-1 Kit Contents: New Bosch CP3 high pressure injection pump CP3 to rail high pressure fuel line High flow CP3 feed and return fuel fittings Preformed feed and return fuel lines CP3 mounting adapter Dosing injector feed line Regulator extension harness Fuel temperature sensor mounting bracket Low pressure fuel feed lines Hardware kit Patent Pending

Installation Instructions
Datasheet
Warranty

This Part Fits:

Year Make Model Submodel
2015-2016 Chevrolet Silverado 2500 HD High Country
2011-2016 Chevrolet Silverado 2500 HD LT
2011-2016 Chevrolet Silverado 2500 HD LTZ
2011-2016 Chevrolet Silverado 2500 HD WT
2015-2016 Chevrolet Silverado 3500 HD High Country
2011-2016 Chevrolet Silverado 3500 HD LT
2011-2016 Chevrolet Silverado 3500 HD LTZ
2011-2016 Chevrolet Silverado 3500 HD WT
2015-2016 GMC Sierra 2500 HD Base
2011-2016 GMC Sierra 2500 HD Denali
2011-2016 GMC Sierra 2500 HD SLE
2011-2016 GMC Sierra 2500 HD SLT
2011-2014 GMC Sierra 2500 HD WT
2015-2016 GMC Sierra 3500 HD Base
2011-2016 GMC Sierra 3500 HD Denali
2011-2016 GMC Sierra 3500 HD SLE
2011-2016 GMC Sierra 3500 HD SLT
2011-2014 GMC Sierra 3500 HD WT
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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: 51752073577

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4.0 ★★★★★
Based on 12 reviews
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Product Reviews
S
Verified Purchase
sicario
Belleville, US
★★★★★ 5
Excellent Product and Exceptional Quality and Service – Highly Recommend!
I recently purchased the LISEN Car Phone Holder Mount [Military Stable] and couldn’t be more impressed! From the moment I unboxed it, I could tell it was built to last. The design is sleek and modern, and it holds my iPhone 15 Pro Max securely without any wobbling, even during bumpy rides. The military-grade stability lives up to its promise—this mount stays firmly in place, and the adjustable clamps fit my phone perfectly. What really stood out to me was the ease of installation. It attaches to my car vent effortlessly, with no tools required, and doesn’t block any air flow, which is a huge plus. It’s also compatible with various phone models, including the latest iPhone 16, so I know it will be a long-term solution for my future upgrades. In addition to the great product, the customer service from Linsen was outstanding. They provided timely and clear communication, answering all my questions before I made the purchase. It’s rare to experience such excellent support these days, and it made my buying experience even better. If you’re looking for a reliable, sturdy, and easy-to-use car phone holder, this is the one to get! https://www.amazon.com/dp/B0CXLQDY5B Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 10, 2024
O
Verified Purchase
OBSSD
Alexandria, US
★★★★★ 4
Well made, but not a good fit for Volvo XC40
One issue with this style of holder, is that the swing arm and holder add a fair amount of weight and extends that weight away from the vent, applying quite a bit more leverage on the vent. It may not be as much of an issue on horizontal vents, but the vertical vents on an XC40 will want to swing side-to-side with all that weight. As for the build of this particular holder, my only real gripe is the adjustment for the swing arm - after tightening the knob, there will still be some play in the arm...you have to jiggle it while tightening it down to fully secure it. The position of the release button allows one-handed removal of the phone, but really only works by pinching with your thumb on the screen. The clip for the vent accommodates relatively wide fins and the tabs can be rotated to help with stability or removed to provide more clearance (though rubberized tabs would be much more helpful).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2024
M
Verified Purchase
MRF
Massapequa, US
★★★★★ 5
Good solid product
Purchased in February of 2025. Very solid item. Use it constantly in our 2011 4Runner and 2017 CX5. This unit attaches firmly to vent fins in both cars. I use iPhone for maps programs and streaming music. When traveling I'm constantly rotating device 90 degrees to use phone in portrait and landscape positions. Unit has shown no signs of losing ability to firmly hold desired position despite frequent rotations. It holds firmly where you place it. Initially I had concerns about placement on dash and blocking view of radio face, clock, MPG indicator, and other displays. Didn't take too long to realize the flexibility of this thing and the many, many positions you can place it due to multiple rotational joints. Pricing was fair. If this ever wears out, I will want to buy another.
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Reviewed in the United States on December 8, 2025
B
Verified Purchase
bspeakes
Lake Worth, US
★★★★★ 5
Happy with purchase, easy to install, exactly what I needed
For many years, I'd been using a similar item with a wedge-type vent mount that finally stretched out and became unusable. When searching for a replacement, I wanted to try one with a different type of mount and I looked at many brands/types of holders. This one seemed to be the best item for the price ($8.99 at the time). So far, I'm very happy with it. I got it in a timely manner, and it was exactly as advertised. I had no problems attaching the hook to the vent fin and securing it. I use it for a GPS, and since the holder is designed to stand out away from the vent a bit, my device is easier to see than previously and details are easier to read. It wobbles, occasionally, but the holder's not loose, at all, and it doesn't affect my ability to read the device. The frame is barely just big enough to hold my GPS, but so far that hasn't been a problem. The device slides into the frame easily, locks securely, and stays put. The holder pops open at the touch of a button on the back, and the device can be removed easily, without issue.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2023
M
Verified Purchase
Marooned
Omaha, US
★★★★★ 3
Prevents me from adjusting the air vent up or down
It's true that it doesn't block the air flow. I had to put it on the left passenger side vent to retain the ability to point the driver's air vents where I want. With it over there, I have to turn my head too far to the right when I'm driving to see my phone, and the passenger can't adjust the vent up or down. Also, phone can't tilt as far left and right as other ones. Good price, unique design, easy to install, feels sturdy, holds iPhone SE fine, and doesn't block my view of the entertainment system.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026

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