-
Fleece Performance
Fleece Performance GM Automatic Transmission 20-Pin Pigtail - FPE-HAR-GM-AT-20-PT
$99.99 -
Fleece Performance
Fleece Performance Universal 6in Fuel Pressure Regulator & Multiuse Pigtail - FPE-HAR-FPR-PT
$27.99 -
Fleece Performance
Fleece Performance 11-16 GM 2500/3500 LML Duramax MAF Sensor Pigtail - FPE-HAR-DMAX-MAF-1116-PT
$29.99 -
Fleece Performance
Fleece Performance 11-16 GM 2500-3500 Duramax Fuel Rail Pressure Harness - FPE-HAR-DMAX-LML-RP
$69.99 -
Fleece Performance
Fleece Performance 11-16 GM 2500/3500 Duramax LML Fan Extension Harness - FPE-HAR-DMAX-FAN-LML
$45.99 -
Fleece Performance
Fleece Performance 11-2016 GM 6.6L Duramax CP3 Regulator Extension Harness - FPE-HAR-CP3-EXT
$29.99 -
Fleece Performance
Fleece Performance 01-16 GM Duramax 2500/3500 Fuel Primer Bulb Sealing Kit - FPE-GM-FFPD-0116
$49.99 -
Fleece Performance
Fleece Performance 11-16 GM 2500/3500 LML Duramax Return Fuel Pressure Test Port - FPE-FPTP-GM-1116
$29.99 -
-
-
-
2011 - 2016 6.6L DURAMAX LML

The GMC 6.6L Duramax LML, produced from 2011 to 2016, marked a major advancement in diesel technology. Designed to meet stricter emissions standards, it introduced a selective catalytic reduction (SCR) system and diesel exhaust fluid (DEF) injection, significantly reducing harmful emissions. With 397 horsepower and 765 lb-ft of torque, the LML delivered impressive power and towing capacity. Despite some challenges with its fuel system, the LML remained a reliable and popular choice in GM’s heavy-duty trucks, balancing strong performance with environmental compliance.
SHOP PARTS FOR 2011 - 2016 6.6L DURAMAX LML
Choose a category
13 categories in 2011 - 2016 6.6L DURAMAX LML- ACCESSORIES Shop now →
- EXHAUST Shop now →
- STEERING Shop now →
- SUSPENSION Shop now →
- TRANSMISSION & DRIVETRAIN Shop now →
- AIR INTAKES Shop now →
- COOLING SYSTEM Shop now →
- ELECTRICAL Shop now →
- ENGINE COMPONENTS Shop now →
- FUEL SYSTEM Shop now →
- GASKETS Shop now →
- INJECTORS Shop now →
- TURBOS & COMPONENTS Shop now →