Fleece Performance

Fleece Performance Coolant Bypass Fits 5.9L Cummins FPE-CLNTBYPS-CUMMINS-VP-SS

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling...

Fleece Performance

Fleece Performance M22 Thermostat Plug FPE-CUMM-CYL-M22-PG

Replacement M22 thermostat plug for use on Cummins cylinder heads.  Includes O-ring. Replaces Cummins part number 3089238.

Fleece Performance

Fleece Performance Return Fuel Pressure Test Port FPE-FPTP-GM-1116

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...

Fleece Performance

Fleece Performance Cummins Dual Pump Controller FPE-CDPC

Cummins Dual Pump Controller (5.9L and 6.7L CP3 or 6.7L and 6.7L CP3)

Fleece Performance

Fleece Performance HP Fuel Line Adaptation Kit FPE-CUMM-CP3-FL-ADPT-KIT

Convert your 5.9L CP3 to a newer 6.7L CP3 style pump with our Fleece Performance exclusive 5.9L to 6.7L adaptation kit.  The kit includes a new high-pressure fuel line, high flow feed and return fittings for the CP3, CP3 feed line and hose clamps. ...

Fleece Performance

Fleece Performance SureFlo Sending Unit Fits 2005-2009 Ram FPE-SF-CUMM-0509

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 ¼ tank...

Fleece Performance

Fleece Performance Fuel Filter Delete Fits 2010-2018 Dodge/Cummins FPE-FFD-RO-4G

Upgrade your fuel system with this fuel filter delete from Fleece Performance Engineering. If you have an aftermarket fuel filtration system such as an Air Dog or a FASS, your factory fuel filter is no longer necessary. The factory fuel filter only...

Fleece Performance

Fleece Performance Thermostat Housing FPE-CUMM-TH-1318

The Fleece Performance replacement thermostat housing with auxiliary port is a direct replacement part for model years 1998.5-2007 RAM with 5.9L Cummins and 2013-2018 RAM with 6.7L Cummins. The auxiliary port is threaded to accept a -10AN (7/8""-14)...

Fleece Performance

Fleece Performance Service Kit FPE-FMC-FF-RLK-1724-SER

Service your 2017-2024 Fleece Performance Injector Return Repair fitting (FPE-FMC-FF-RLK-1724) with our service kit that includes new O-rings and locking ring. Kit includes 2 O-rings, 1 locking ring, and 1 locking external body.

Fleece Performance

Fleece Performance CP3 Adapter Fits 6.6L Duramax FPE-DMAX-CP3-ADPT

Replacement CP3 adapter machined from billet aluminum for the 2001-2016 GM Duramax. Includes new O-rings for the CP3 pump snout and CP3 adapter. APPLICATION NOTES Direct replacement for GM part number 97328578 and 97188692 Direct replacement for Sierra...

Fleece Performance

Fleece Performance Thermostat Housing Upgrade FPE-FMC-TH-1125

Upgrade your plastic OEM or aftermarket engine coolant thermostat housing on your 6.7L Power Stroke with our more durable cast aluminum model! Our direct replacement thermostat housing works with all factory and replacement thermostats.  New O-rings...

Fleece Performance

Fleece Performance High Pressure Injection Line Kit FPE-FL-DMAX-LBZLMM-SET

Replacement high pressure fuel lines from Fleece Performance.  These are a direct replacement for your cracked, broken, or leaking injector lines. This kit includes a complete set of 8 lines. Application Notes Replaces GM Part # 98006523 (qty 2) Replaces...