FASS Fuel Systems Diesel System 2015-2016 GM Duramax LML 6.6L Titanium Signature Series 165GPH (TSC12165G)Part No: TSC12165G A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is because your Duramax doesn't come with a factory System...

FASS Fuel Systems Diesel System 2015-2016 GM Duramax LML 6.6L Titanium Signature Series 100GPH (TSC12100G) Part No: TSC12100G A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is because your Duramax doesn't come with a factory...

Make installation and removal of the dosing injector fuel line on 2011-2016 LML Duramax engines a breeze with our fuel line disconnect tool. Fits: 2011-2016 Duramax Vehicle Fitments GMC Sierra 2500 HD 2011 to 2016 GMC Sierra 3500 HD 2011 to 2016 Chevrolet Silverado...

PureFlow Raptor 11-14 Chevrolet 6.6L Duramax RP-4G-100 Fuel Pump

PureFlow Raptor 11-14 Chevrolet 6.6L Duramax RP-4G-150 Fuel Pump

PureFlow Raptor 15-16 Chevrolet 6.6L Duramax RP-4G-100 Fuel Pump

PureFlow Raptor 15-16 Chevrolet 6.6L Duramax RP-4G-150 Fuel Pump

The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 pump failures. When installed in the return fuel system, it allows for a pressure gauge to be...

Problem: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fuel tank to accommodate a sump. Each of these has some pretty significant drawbacks including the ?...

Problem: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fuel tank to accommodate a sump. Each of these has some pretty significant drawbacks including the ?...

The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance. The PowerFlo is the only in-tank lift pump capable of supporting up to 800 hp! The LML when delivered from the factory relies on vacuum...

The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance. The PowerFlo is the only in-tank lift pump capable of supporting up to 800 hp! The LML when delivered from the factory relies on vacuum...

Ditch the grit. Get rid the dirtiest oil left in the valley of your stock pan from all your previous oil changes. The stock Duramax engine oil pan is stamped steel (very poor heat dissipation) and there is a valley in the pan which...

Ditch the grit. Get rid the dirtiest oil left in the valley of your stock pan from all your previous oil changes. The stock Duramax engine oil pan is stamped steel (very poor heat dissipation) and there is a valley in the pan which...

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...

Our replacement fan extension harness for the 2011-2016 LML Duramax allows you to repair a broken or damaged harness without needing to replace the entire fan assembly. This harness is mounted to the fan assembly and connects to the fan and chassis harness. Produced...

Replacement CP3 fuel return hose for the Fleece Performance LML CP3 Conversion Kits. Fits all prior and current models. Vehicle Fitments GMC Sierra 2500 HD 2011 to 2016 GMC Sierra 3500 HD 2011 to 2016 Chevrolet Silverado 2500 HD 2011 to 2016 Chevrolet Silverado...

Replacement CP3 fuel feed hose for the Fleece Performance LML CP3 Conversion Kits. Fits all prior and current models. Vehicle Fitments GMC Sierra 2500 HD 2011 to 2016 GMC Sierra 3500 HD 2011 to 2016 Chevrolet Silverado 2500 HD 2011 to 2016 Chevrolet Silverado...

Want to get rid of that big ugly resonator under the hood of your LML? This billet aluminum plate, anodized in black with Fleece engraved across the top will take its place and give your truck some personality. Our resonator delete plate is designed...

The BRAND NEW NO CORE CHARGE 63mm FMW Duramax VNT Cheetah Turbocharger is a drop-in replacement turbocharger for 2011-2016 Duramax diesels. It comes with a Fleece Performance Engineered 63mm FMW compressor wheel and high flow Cheetah turbine wheel. This drop-in replacement turbo is guaranteed...