Engine Parts & Upgrades

The Fleece Performance Charging Circuit Harness for the 2019 Ford 6.7L Power Stroke is a drop-in replacement with no cutting or splicing to fix the common problem of an intermittent or continuously illuminated battery lamp on the dash! Designed and 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 back on the road quickly. Fits 2019 Ford F250/350/450/550 with 6.7L Powerstroke.

Our replacement fan extension harness for the 2011-2018 Ford with 6.7L Power Stroke allows you to repair a broken or damaged harness without needing to replace the entire fan and clutch assembly. This harness is mounted to the fan assembly and connects to the fan and mating chassis harness.

Cooling Fan and Clutch Pigtail 2013-2022 6.7L Cummins

Our replacement fan extension harness for the 2019-2024 Ram with 6.7L Cummins allows you to repair a broken or damaged harness without needing to replace the entire fan and clutch assembly.

Hard to find replacement connector with 6" pigtail for use on the 2020+ Ford Powerstroke cooling fan clutch. 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 back on the road quickly.

A common failure point on the Ford platform, our replacement connector and pigtail for the heated seat module will get you back on the road quickly! 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 for your car or truck.

Replacement fuel pump pigtail for the 2017-2024 6.7L Powerstroke. Includes heat-sealable butt-style connectors.

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

Ford's Engine Oil Dipstick for your 2003-2004 6.0L Powerstroke

Ford's Engine Oil Dipstick for your 2004.5-2007 6.0L Powerstroke

Ford's Engine Oil Dipstick for your 2008-2010 6.4L Powerstroke

Ford's Engine Oil Dipstick for your 2011-2016 6.7L Powerstroke

Ford's Engine Oil Dipstick Tube O-Ring for your 2008-2010 6.4L Powerstroke

Ford's Engine Oil Dipstick Tube for your 2008-2010 6.4L Powerstroke

Ford's Engine Oil Dipstick Tube for your 2011-2016 6.7L Powerstroke

OEM exhaust manifold to up-pipe gasket from GM for your GM/Chevy 6.6L Duramax 2001-2016 diesel pickup.

The GM 11611132 Up-Pipe Bolt is a genuine OEM replacement for the seized, stripped or broken up pipe bolts in your 2001-2016 GM 6.6L Duramax. This bolt will connect the up-pipes to the exhaust manifolds and the up-pipes to the turbo pedestal.

The Sinister Diesel LML Intake Bridge replaces the restrictive stock piping on your for the 2011-Early 2015 GMC/Chevy 6.6L Duramax Diesel with larger diameter CNC mandrel bent aluminum tubing that optimizes airflow after the throttle valve and heater.

Install a set of these high-flow stainless tubular headers on your 2003-2007 Ford Powerstroke! These have added 27 hp / 56 lbs-ft of torque on a stock tune Powerstroke. Sinister Diesel headers produce power in the low RPM power band, making these perfect for towing. This kit has a raw pipe finish.

Replace the weak OEM head bolts on your 2011-2021 6.7L Powerstroke with the XDP X220 Series Head Stud Kit XD3018HS. Upgrading the factory head bolts is a must when you start adding horsepower and torque to your Super Duty.

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.

The Ford Motorcraft KC3Z-6079-CA (EVG-1) 18mm Head Gasket & Upper Seal Kit comes with everything needed to reassemble the top end of your 2003-2006 Ford 6.0L Powerstroke engine. The head bolts on the 6.0L engine are known to stretch and it can blow out the head gaskets.

Reseal the cylinder head and upper engine in your 2003-2006 Ford 6.0L Powerstroke with the MAHLE HS54450 Cylinder Head Gasket Set.

The Ford Motorcraft 6.0L 18mm Head Gasket kit is a factory replacement for your 2003-2007 Powerstroke truck.

The Ford Motorcraft 6.0L Head Gasket kit is a factory replacement for your 2005-2007 Powerstroke truck.

The Sinister Diesel intake elbow for the 1998.5-2002 Dodge 5.9L Cummins 24V replaces the restrictive stock piping with larger diameter CNC mandrel bent aluminum tubing, increasing performance and turbo spooling while allowing higher boost levels.

The XDP Exhaust Manifold Installation Bolt Kit is made with all brand new stainless steel hardware for your 1989-2018 Dodge Ram 5.9L/6.7L Cummins truck.

Get maintained reliability with the Hamilton Cams Flat Tappet Conversion Kit With Camshaft 07-CC-24V19+. In 2019 the diesel engine in the Ram 2500/3500 changed to a hydraulic roller valvetrain. Although used for many years in the automotive industry, it has not made good impressions in terms of reliability in these hard-working trucks like its predecessor that used flat tappet style valvetrain.

Mag-Hytec Universal Drain Plug

The Mahle Head Gasket Set for your 6.7L Cummins features an OEM quality design that meets or exceeds factory specifications

The Mahle Head Gasket Set for your Dodge 6.7L Cummins 2007.5-2018, features an OEM quality design that meets or exceeds factory specifications

The Sinister Diesel intake elbow for the 2003-2007 Dodge 5.9L Cummins replaces the restrictive stock piping with larger diameter CNC mandrel bent aluminum tubing, increasing performance and turbo spooling while allowing higher boost levels.

XDP Driver Side Exhaust Manifold for 2001-2016 GMC/Chevy 6.6L Duramax trucks, replaces the "dented" manifold on 2001-2010 models.

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.

Bulletproof Diesel's heavy duty oil cooler upgrade kit with gaskets is a direct fit for your 2011-2019 6.7L Ford diesel truck.

Bulletproof Diesel's oil cooler shield is a direct fit for your 2011-2019 6.7L Ford diesel truck's Bulletproof oil cooler.