Shop LML CP4 to CP3 Conversion Fleece

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$2,600.00
2011-2016 Duramax LML CP3 Conversion Kit - No Tuning Required - S&S Diesel Motorsport
InjectorsDirect.com
$2,600.00
2011-2016 Duramax LML CP3 Conversion Kit - No Tuning Required - S&S Diesel Motorsport
InjectorsDirect.com
$2,098.95
Fleece Performance CP3 Conversion Kit With CP3 For 2011-2016 LML Duramax
Mark DeCola Diesel Performance LLC
$2,098.95
Fleece Performance CP3 Conversion Kit With CP3 For 2011-2016 LML Duramax
Mark DeCola Diesel Performance LLC
$1,999.00
CP3 Conversion Kit With CP3 For 2011-2016 LML Duramax Fleece Performance
DK Diesel
8
$1,999.00
CP3 Conversion Kit With CP3 For 2011-2016 LML Duramax Fleece Performance
DK Diesel
$19.99
Replacement CP3 Return Hose For LML CP3 Conversion Kit Fleece Performance
Diesel Auto Power - July 7th 2025
8
$19.99
Replacement CP3 Return Hose For LML CP3 Conversion Kit Fleece Performance
Diesel Auto Power - July 7th 2025
$786.45
Fleece Performance CP3 Conversion Hardware Kit (No Pump) For 2011-2016 LML Duramax
Mark DeCola Diesel Performance LLC
$786.45
Fleece Performance CP3 Conversion Hardware Kit (No Pump) For 2011-2016 LML Duramax
Mark DeCola Diesel Performance LLC
$2,749.00
LML CP3 Conversion Kit With Heavy Duty CP3 For 2011-2016 Duramax Fleece Performance
Diesel Auto Power - July 7th 2025
5
$2,749.00
LML CP3 Conversion Kit With Heavy Duty CP3 For 2011-2016 Duramax Fleece Performance
Diesel Auto Power - July 7th 2025
$2,095.00
Fleece Performance CP3 Conversion Kit 11-16 6.6L GM LML Duramax Kit With Pump
Diesel Power Products
8
$2,095.00
Fleece Performance CP3 Conversion Kit 11-16 6.6L GM LML Duramax Kit With Pump
Diesel Power Products
$2,095.00
2011-2016 LML CP3 Conversion Kit With CP3K Pump Fleece Performance
Norcal Diesel Performance
8
Free shipping
$2,095.00
2011-2016 LML CP3 Conversion Kit With CP3K Pump Fleece Performance
Norcal Diesel Performance
$1,608.00
DAP 11-16 LML CP4 CP3 Conversion Kit- Pump Optional CP3:Oereman
Diesel Auto Power - July 7th 2025
$1,608.00
DAP 11-16 LML CP4 CP3 Conversion Kit- Pump Optional CP3:Oereman
Diesel Auto Power - July 7th 2025
$2,095.00
$2,199.75
Fleece FPE-LML-CP3-WP Emissions Compliant CP3 Conversion Kit, 2011-2016 GM 6.6L Duramax LML
ZZ Diesel
$2,095.00
$2,199.75
Fleece FPE-LML-CP3-WP Emissions Compliant CP3 Conversion Kit, 2011-2016 GM 6.6L Duramax LML
ZZ Diesel
$20.99
Fleece Performance Replacement CP3 Return Hose For LML CP3 Conversion Kit
Mark DeCola Diesel Performance LLC
$20.99
Fleece Performance Replacement CP3 Return Hose For LML CP3 Conversion Kit
Mark DeCola Diesel Performance LLC
$37.65
$41.42
Fleece Replacement CP3 Return Hose | 2011-2016 LML Duramax CP3 Conversion
SuspensionLifts.com
8
$37.65
$41.42
Fleece Replacement CP3 Return Hose | 2011-2016 LML Duramax CP3 Conversion
SuspensionLifts.com
$19.99
Replacement CP3 Return Hose For LML CP3 Conversion Kit Fleece Performance
DK Diesel
8
$19.99
Replacement CP3 Return Hose For LML CP3 Conversion Kit Fleece Performance
DK Diesel
$5,399.99
2011-2016 Duramax LML CP3 Conversion Kit + Pump Failure Kit - No Tuning Required - No Gasket
InjectorsDirect.com
$5,399.99
2011-2016 Duramax LML CP3 Conversion Kit + Pump Failure Kit - No Tuning Required - No Gasket
InjectorsDirect.com
$19.99
Replacement CP3 Feed Hose For LML CP3 Conversion Kit Fleece Performance
Diesel Auto Power - July 7th 2025
$19.99
Replacement CP3 Feed Hose For LML CP3 Conversion Kit Fleece Performance
Diesel Auto Power - July 7th 2025
$525.00
ZZ Diesel CP4 To CP3 Conversion Kit, 2011-2016 GM 6.6L Duramax LML
ZZ Diesel
$525.00
ZZ Diesel CP4 To CP3 Conversion Kit, 2011-2016 GM 6.6L Duramax LML
ZZ Diesel
$749.00
CP3 Conversion Hardware Kit (No Pump) For 2011-2016 LML Duramax Fleece Performance
DK Diesel
$749.00
CP3 Conversion Hardware Kit (No Pump) For 2011-2016 LML Duramax Fleece Performance
DK Diesel
$2,749.00
Fleece Performance CP3 Conversion Kit With Heavy Duty 10mm Injection Pump 11-16 GM 6.6L LML Duramax
Diesel Power Products
5
$2,749.00
Fleece Performance CP3 Conversion Kit With Heavy Duty 10mm Injection Pump 11-16 GM 6.6L LML Duramax
Diesel Power Products
$140.99
$171.94
Cp4 To Cp3 Injection Pump Upgrade Conversion For 11-16 Gm 6.6 Lml
eBay
Free shipping
18% off
$140.99
$171.94
Cp4 To Cp3 Injection Pump Upgrade Conversion For 11-16 Gm 6.6 Lml
eBay
$2,095.00
Fleece Performance FPE-LML-CP3-WP LML CP3 Conversion Kit With CP3 -
Tameless Performance
8
$2,095.00
Fleece Performance FPE-LML-CP3-WP LML CP3 Conversion Kit With CP3 -
Tameless Performance
$2,222.27
$2,444.50
Fleece CP3 Conversion Kit W/ Pump | 2011-2016 LML Duramax
SuspensionLifts.com
6
$2,222.27
$2,444.50
Fleece CP3 Conversion Kit W/ Pump | 2011-2016 LML Duramax
SuspensionLifts.com
$2,749.00
Fleece Cp3 Conversion Kit With Heavy Duty Cp3 For 2011-2016 Lml Duramax
Blessed Performance
5
$2,749.00
Fleece Cp3 Conversion Kit With Heavy Duty Cp3 For 2011-2016 Lml Duramax
Blessed Performance
$20.99
Fleece Performance Replacement CP3 Feed Hose For LML CP3 Conversion Kit
Mark DeCola Diesel Performance LLC
$20.99
Fleece Performance Replacement CP3 Feed Hose For LML CP3 Conversion Kit
Mark DeCola Diesel Performance LLC
$19.99
Replacement CP3 Feed Hose For LML CP3 Conversion Kit Fleece Performance
DK Diesel
$19.99
Replacement CP3 Feed Hose For LML CP3 Conversion Kit Fleece Performance
DK Diesel
$749.00
2011-2016 LML CP3 Conversion Kit W/O Pump Fleece Performance
Norcal Diesel Performance
7
Free shipping
$749.00
2011-2016 LML CP3 Conversion Kit W/O Pump Fleece Performance
Norcal Diesel Performance
$2,095.00
Fleece Cp3 Conversion Kit 2011 To 2016 6.6L Lml Duramax
Blessed Performance
8
$2,095.00
Fleece Cp3 Conversion Kit 2011 To 2016 6.6L Lml Duramax
Blessed Performance
$2,749.00
Fleece Performance FPE-LML-CP3-10 2011-2016 LML CP3 Conversion Kit
Tameless Performance
5
$2,749.00
Fleece Performance FPE-LML-CP3-10 2011-2016 LML CP3 Conversion Kit
Tameless Performance
$842.40
$926.64
Fleece CP3 Conversion Hardware Kit (Pump-Less) | 2011-2016 LML Duramax
SuspensionLifts.com
$842.40
$926.64
Fleece CP3 Conversion Hardware Kit (Pump-Less) | 2011-2016 LML Duramax
SuspensionLifts.com
$749.00
Fleece Performance Cp3 Conversion Kit For 2011 To 2016 6.6L Lml Duramax
Blessed Performance
$749.00
Fleece Performance Cp3 Conversion Kit For 2011 To 2016 6.6L Lml Duramax
Blessed Performance
$19.99
Fleece Performance Replacement CP3 Conversion Fuel Feed Hose 11-16 GM 6.6L Duramax LML
Diesel Power Products
$19.99
Fleece Performance Replacement CP3 Conversion Fuel Feed Hose 11-16 GM 6.6L Duramax LML
Diesel Power Products
$2,095.00
Fleece Performance FPE-LML-CP3-WP CP3 Conversion Kit For 2011-2016 LML Duramax Diesel
VividRacing
8
$2,095.00
Fleece Performance FPE-LML-CP3-WP CP3 Conversion Kit For 2011-2016 LML Duramax Diesel
VividRacing
$749.00
Fleece Lml Cp3 Conversion Hardware Kit (No Pump)- 2011-2016 6.6L Chevy/Gmc Duramax
Blessed Performance
$749.00
Fleece Lml Cp3 Conversion Hardware Kit (No Pump)- 2011-2016 6.6L Chevy/Gmc Duramax
Blessed Performance
$1,794.45
11-16 LML Duramax CP4 To CP3 Conversion Kit W/CP3 Pump - Tuning Req
Pure Diesel Power
7
$1,794.45
11-16 LML Duramax CP4 To CP3 Conversion Kit W/CP3 Pump - Tuning Req
Pure Diesel Power
$2,884.61
$3,173.07
Universal Fleece LML CP3-Conversion Kit W/ Powerflo 750 | 2011-2016 Duramax
SuspensionLifts.com
2
$2,884.61
$3,173.07
Universal Fleece LML CP3-Conversion Kit W/ Powerflo 750 | 2011-2016 Duramax
SuspensionLifts.com
$678.95
Industrial Injection 436402 CP4 To CP3 Conversion Kit (No Pump) 11-16 6.6L GM Duramax LML
Diesel Power Products
$678.95
Industrial Injection 436402 CP4 To CP3 Conversion Kit (No Pump) 11-16 6.6L GM Duramax LML
Diesel Power Products
$19.99
Fleece Performance Replacement CP3 Return Hose For LML CP3 Conversion
Tameless Performance
8
$19.99
Fleece Performance Replacement CP3 Return Hose For LML CP3 Conversion
Tameless Performance
Fleece LML CP3 Conversion Hardware Kit: No Pump
Fleece LML CP3 Conversion Hardware Kit: No Pump
Jan 31, 2022
fleeceperformance.com
Dynoing a customer's LML today featuring our CP3 conversion and sS463 turbo! Expect to see more of this beautiful truck soon! #fleeceperformance #lml #PowerFlo750 | Fleece Performance Engineering
0:15
Dynoing a customer's LML today featuring our CP3 conversion and sS463 turbo! Expect to see more of this beautiful truck soon! #fleeceperformance #lml #PowerFlo750 | Fleece Performance Engineering
10.6K viewsApr 27, 2016
FacebookFleece Performance Engineering
LML CP3 conversion
LML CP3 conversion
Nov 14, 2023
yellowbullet.com
Fleece LML CP3 Conversion Kit w/ CP3 for 11-16 Chevy/GMC Duramax
Fleece LML CP3 Conversion Kit w/ CP3 for 11-16 Chevy/GMC Duramax
Jan 18, 2025
fleeceperformance.com
It’s junk! CP3 conversion on this LML Duramax | Dave's Engines
0:18
It’s junk! CP3 conversion on this LML Duramax | Dave's Engines
372K viewsFeb 6, 2025
FacebookDave's Engines
2016 LML Duramax CP4 to CP3 Conversion
2016 LML Duramax CP4 to CP3 Conversion
Apr 11, 2024
duramaxforum.com
WCFab LML CP3 Conversion Kit; We offer TWO different styles kits, and we often get asked, what is the difference? In this video we explain, Street Series Vs Race! What is a CP3 Conversion? 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 usua
1:58
WCFab LML CP3 Conversion Kit; We offer TWO different styles kits, and we often get asked, what is the difference? In this video we explain, Street Series Vs Race! What is a CP3 Conversion? 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 usua
2.6K viewsMay 6, 2020
FacebookWehrli Custom Fabrication Inc.
6:42
Still running a CP4 in your LML Duramax? Our CP3 Conversion Kit is the upgrade that saves your fuel system before it’s too late. | Wehrli Custom Fabrication Inc.
1.8K views6 months ago
FacebookWehrli Custom Fabrication Inc.
3:41
How to Convert LML Duramax CP4 Injection Pump to CP3
Jul 10, 2021
motortrend.com
3:05
The Exergy Performance Fuel System Savers offers peace of mind to those who own an LML who are not interested in doing a CP3 Conversion. Jason Wehrli explains how the Fuel Saver works! Give us a call: 630-277-8239 | Wehrli Custom Fabrication Inc.
1.9K viewsMar 31, 2020
FacebookWehrli Custom Fabrication Inc.
2:13
Brayden Fleece owner of Fleece Performance Engineering Explains why the Bosch Cp3 fuel pump is better than the Cp4 fuel pump. dieselworldmag.com | Diesel World
10.6K viewsJun 24, 2019
FacebookDiesel World
0:33
Here’s what a CP3 conversion from @Fleece Performance would cost you on your LML Duramax!! • { #duramax #cp3 #cp4 #lml #dieselmechanic }
882 views2 months ago
TikToksmithsdieselperformance
0:13
Prevent CP4 Failure in LML Duramax Trucks
1.1K views2 months ago
TikTokcdadiesel
0:44
Solve Your CP4 Issues with Our CP3 Conversion Kits
3.1K views2 months ago
TikTokutahdieselcenter
11:12
LB7 Duramax CP3 Replacement
32.3K viewsApr 5, 2020
YouTubeRD Performance
27:56
Duramax CP3 Removal, LMM, Part 2
58.4K viewsJan 17, 2016
YouTubePterassic NW
2:39
LML Duramax Cp4 Pump Timing
63.1K viewsJan 28, 2016
YouTubeToxic Diesel
19:16
DURAMAX LLY 2004 CP3 PUMP REPLACEMENT
70.5K viewsDec 18, 2020
YouTubeJosh “the artisan mechanic” Logan
6:57
Duramax Injector pump CP3 removal requirements
147.9K viewsNov 7, 2015
YouTubeRancher 96
3:21
WCFab L5P Duramax CP3 Conversion Kit
15.3K viewsDec 9, 2020
YouTubeWCFab
9:21
S&S Diesel Motorsport LML CP3 Conversion Kits Explained
37.7K viewsDec 17, 2019
YouTubeSSfueled
19:02
CP4 TO CP3 CONVERSION ON 5TH GEN CUMMINS!!
5.9K viewsMay 22, 2021
YouTubeEVERYTHANG DIESEL
16:55
6.7 Powerstroke CP4 Disaster Prevention FULL INSTALL
201.2K viewsJan 5, 2021
YouTubeTopCorey
4:57
How To Install a LBZ/LMM Duramax Fuel Injection Pump
170.8K viewsOct 26, 2015
YouTubeToxic Diesel
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Bosch CP4 vs CP3 High Pressure Fuel Pump Comparison
94K viewsApr 17, 2019
YouTubeSSfueled
2:52
Cp4 pump removal lml duramax
15K viewsMar 15, 2021
YouTubeD J
12:44
What it takes to be at 730hp on a Duramax LML?
248.5K viewsJul 20, 2018
YouTubeTruck Master
4:00
Duramax LBZ cp3 pump replacement The RIGHT WAY!
87.5K viewsAug 15, 2020
YouTubeGreg’s VW Garage
6:08
LML CP4 failure tear down and why your 11-16 Duramax needs a lift pump!
79.1K viewsJul 18, 2018
YouTubeRace Ready Fab
20:12
LML Duramax CP4 Fix, S&S 50 State Legal CP3 Conversion Kit Install
125K viewsFeb 2, 2020
YouTubeDmaxStore
See more

Shop LML CP4 to CP3 Conversion Fleece

Sponsored
About our ads
$2,600.00
2011-2016 Duramax LML CP3 Conversion Kit - No Tuning Required - S&S Diesel Motorsport
InjectorsDirect.com
$2,600.00
2011-2016 Duramax LML CP3 Conversion Kit - No Tuning Required - S&S Diesel Motorsport
InjectorsDirect.com
$2,098.95
Fleece Performance CP3 Conversion Kit With CP3 For 2011-2016 LML Duramax
Mark DeCola Diesel Performance LLC
$2,098.95
Fleece Performance CP3 Conversion Kit With CP3 For 2011-2016 LML Duramax
Mark DeCola Diesel Performance LLC
$1,999.00
CP3 Conversion Kit With CP3 For 2011-2016 LML Duramax Fleece Performance
DK Diesel
8
$1,999.00
CP3 Conversion Kit With CP3 For 2011-2016 LML Duramax Fleece Performance
DK Diesel
$19.99
Replacement CP3 Return Hose For LML CP3 Conversion Kit Fleece Performance
Diesel Auto Power - July 7th 2025
8
$19.99
Replacement CP3 Return Hose For LML CP3 Conversion Kit Fleece Performance
Diesel Auto Power - July 7th 2025
$786.45
Fleece Performance CP3 Conversion Hardware Kit (No Pump) For 2011-2016 LML Duramax
Mark DeCola Diesel Performance LLC
$786.45
Fleece Performance CP3 Conversion Hardware Kit (No Pump) For 2011-2016 LML Duramax
Mark DeCola Diesel Performance LLC
$2,749.00
LML CP3 Conversion Kit With Heavy Duty CP3 For 2011-2016 Duramax Fleece Performance
Diesel Auto Power - July 7th 2025
5
$2,749.00
LML CP3 Conversion Kit With Heavy Duty CP3 For 2011-2016 Duramax Fleece Performance
Diesel Auto Power - July 7th 2025
$2,095.00
Fleece Performance CP3 Conversion Kit 11-16 6.6L GM LML Duramax Kit With Pump
Diesel Power Products
8
$2,095.00
Fleece Performance CP3 Conversion Kit 11-16 6.6L GM LML Duramax Kit With Pump
Diesel Power Products
$2,095.00
2011-2016 LML CP3 Conversion Kit With CP3K Pump Fleece Performance
Norcal Diesel Performance
8
Free shipping
$2,095.00
2011-2016 LML CP3 Conversion Kit With CP3K Pump Fleece Performance
Norcal Diesel Performance
$1,608.00
DAP 11-16 LML CP4 CP3 Conversion Kit- Pump Optional CP3:Oereman
Diesel Auto Power - July 7th 2025
$1,608.00
DAP 11-16 LML CP4 CP3 Conversion Kit- Pump Optional CP3:Oereman
Diesel Auto Power - July 7th 2025
$2,095.00
$2,199.75
Fleece FPE-LML-CP3-WP Emissions Compliant CP3 Conversion Kit, 2011-2016 GM 6.6L Duramax LML
ZZ Diesel
$2,095.00
$2,199.75
Fleece FPE-LML-CP3-WP Emissions Compliant CP3 Conversion Kit, 2011-2016 GM 6.6L Duramax LML
ZZ Diesel
$20.99
Fleece Performance Replacement CP3 Return Hose For LML CP3 Conversion Kit
Mark DeCola Diesel Performance LLC
$20.99
Fleece Performance Replacement CP3 Return Hose For LML CP3 Conversion Kit
Mark DeCola Diesel Performance LLC
$37.65
$41.42
Fleece Replacement CP3 Return Hose | 2011-2016 LML Duramax CP3 Conversion
SuspensionLifts.com
8
$37.65
$41.42
Fleece Replacement CP3 Return Hose | 2011-2016 LML Duramax CP3 Conversion
SuspensionLifts.com
$19.99
Replacement CP3 Return Hose For LML CP3 Conversion Kit Fleece Performance
DK Diesel
8
$19.99
Replacement CP3 Return Hose For LML CP3 Conversion Kit Fleece Performance
DK Diesel
$5,399.99
2011-2016 Duramax LML CP3 Conversion Kit + Pump Failure Kit - No Tuning Required - No Gasket
InjectorsDirect.com
$5,399.99
2011-2016 Duramax LML CP3 Conversion Kit + Pump Failure Kit - No Tuning Required - No Gasket
InjectorsDirect.com
$19.99
Replacement CP3 Feed Hose For LML CP3 Conversion Kit Fleece Performance
Diesel Auto Power - July 7th 2025
$19.99
Replacement CP3 Feed Hose For LML CP3 Conversion Kit Fleece Performance
Diesel Auto Power - July 7th 2025
$525.00
ZZ Diesel CP4 To CP3 Conversion Kit, 2011-2016 GM 6.6L Duramax LML
ZZ Diesel
$525.00
ZZ Diesel CP4 To CP3 Conversion Kit, 2011-2016 GM 6.6L Duramax LML
ZZ Diesel
$749.00
CP3 Conversion Hardware Kit (No Pump) For 2011-2016 LML Duramax Fleece Performance
DK Diesel
$749.00
CP3 Conversion Hardware Kit (No Pump) For 2011-2016 LML Duramax Fleece Performance
DK Diesel
$2,749.00
Fleece Performance CP3 Conversion Kit With Heavy Duty 10mm Injection Pump 11-16 GM 6.6L LML Duramax
Diesel Power Products
5
$2,749.00
Fleece Performance CP3 Conversion Kit With Heavy Duty 10mm Injection Pump 11-16 GM 6.6L LML Duramax
Diesel Power Products