Engine Sensors & Wiring Systems

Fleece's Replacement connector with 6" pigtail for use on the 6.6L Duramax engine and other vehicle applications. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement parts you need to get your truck or car back on the road quickly.

Fleece's OEM Replacement Fuel Injector Connector 4.5" Pigtail ensures high quality parts for your 2017-2022 GMC/Chevy 6.6L Duramax truck.

Fleece Performance's OEM Replacement Sensor Connector w/ 4.5" Pigtail ensures high quality parts for your 2001-2022 GMC/Chevy 6.6L Duramax truck.

Fleece Performance Fuel Rail Pressure Sensor Extension Harness is designed to add additional flexibility in the harness routings and ensures quality of parts and performance for your 2003-2012 Dodge 5.9L/6.7L Cummins & 2001-2016 GMC/Chevy 6.6L Duramax truck.

Fleece Performance's Intake Air Temperature Sensor Extension Harness ensures quality of parts and performance for your 2013-2018 Dodge 6.7L Cummins truck.

Fleece Performance Crankshaft & Camshaft Sensor Pigtail is produced in-house and ensures quality of parts and performance for your 1998.5-2002 Dodge 5.9L Cummins truck.

Fleece Performance Cummins Crankshaft & Camshaft Sensor Extension Harness ensures quality of parts and performance for your 2013-2018 Dodge 5.9L/6.7L Cummins truck.

Fleece Performance Bosch CP3 Regulator Extension Harness ensures quality of parts and performance for your 2011-2016 GMC/Chevy 6.6L Duramax truck.

The Fluidampr Sensor Relocation kit relocates the engine speed sensor when running a Fluidampr performance diesel series damper on your 1992-1998 Dodge 5.9L Cummins truck.

The Dorman Injection Control Pressure Sensor (ICP) Pigtail allows you to replace just the sensor pigtail on you 1994-2007 7.3L/6.0L Powerstroke pickup.

The Dorman Engine Oil/ Coolant/Fuel Temperature Sensor Pigtail is engineered to meet factory standards in your 2004-2010 6.0L/6.4L Ford truck.

Cooling Fan and Clutch Pigtail 2013-2022 6.7L Cummins

MAF Sensor Pigtail 2013-2018 6.7L Cummins

MAF Sensor Pigtail 2013-2018 6.7L Cummins and 2017-2022 6.6L Duramax

Holset HE300VG Turbocharger Actuator Pigtail 2013-2022 6.7L Cummins

Don't let injector harness issue keep your 2017-2022 L5P Duramax down, repair it with Fleeece Performance's Fuel Injector Connector Pigtail.

Don't let injector harness issue keep your 2017-2022 L5P Duramax down, repair it with Fleeece Performance's Fuel Injector Connector Pigtail.

Fleece's replacement turbine shaft speed sensor works on all 6.7L Cummins Holset HE351VE, HE300VE/VG, and HE400VG / HE451VE turbochargers.

BD's replacement connector with pigtail for the fuel injectors will get your 2017-2023 6.6L Duramax back on the road quickly.

BD's replacement connector with pigtail for the fuel injectors will get your 2017-2023 6.6L Duramax back on the road quickly.

Fleece perofrmance's Internal Wire Harness Connector Seal for Allison LCT and GM 4T65-E. Fits 2001-2019 6.6L Duramax trucks.

Fleece perofrmance's Internal Wire Harness Connector Seal for Allison LCT and GM 4T65-E. Fits 2001-2019 6.6L Duramax trucks. Pack of 7.

Replacement crankshaft position sensor connector with 6" Pigtail for the 2004-2016 6.6L Duramax engines. Includes heat-sealable butt-style connectors.

Produced in-house at Fleece Performance, this replacement connector with a 6" pigtail for your Duamax includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement parts you need.

Produced in-house at Fleece Performance, this replacement connector with a 6" pigtail for your Duamax includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement parts you need.

OEM Motorcraft Fuel Rail Pressure Sensor for your 2017-2019 6.7L Powerstroke truck.