Skip to main content
UnderDog Diesel

Category

Engine & Performance

Showing 1,777-1,824 of 2,949 products

Fleece Performance Cummins Coolant Bypass Kit 003-05 Auto Trans with Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-0305-SS

Engine & Performance

Fleece Performance Cummins Coolant Bypass Kit 003-05 Auto Trans with Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-0305-SS

$379.00

View Details
Fleece Performance Cummins Coolant Bypass Kit 03-07 Manual Transmission w/ Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-MAN-SS

Engine & Performance

Fleece Performance Cummins Coolant Bypass Kit 03-07 Manual Transmission w/ Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-MAN-SS

$379.00

View Details
Fleece Performance Cummins Coolant Bypass Kit 06-07 Auto Trans with Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-0607-SS

Engine & Performance

Fleece Performance Cummins Coolant Bypass Kit 06-07 Auto Trans with Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-0607-SS

$379.00

View Details
Fleece Performance Cummins Coolant Bypass Kit 12V 94-98 with Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-12V-SS

Engine & Performance

Fleece Performance Cummins Coolant Bypass Kit 12V 94-98 with Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-12V-SS

$379.00

View Details
Fleece Performance Cummins Coolant Bypass Kit 2003-2005 Auto Trans - FPE-CLNTBYPS-CUMMINS-0305

Engine & Performance

Fleece Performance Cummins Coolant Bypass Kit 2003-2005 Auto Trans - FPE-CLNTBYPS-CUMMINS-0305

$379.00

View Details
Fleece Performance Cummins Coolant Bypass Kit 2003-2007 Manual Transmission - FPE-CLNTBYPS-CUMMINS-MAN

Engine & Performance

Fleece Performance Cummins Coolant Bypass Kit 2003-2007 Manual Transmission - FPE-CLNTBYPS-CUMMINS-MAN

$379.00

View Details
Fleece Performance Cummins Coolant Bypass Kit 2006-2007 Auto Trans - FPE-CLNTBYPS-CUMMINS-0607

Engine & Performance

Fleece Performance Cummins Coolant Bypass Kit 2006-2007 Auto Trans - FPE-CLNTBYPS-CUMMINS-0607

$379.00

View Details
Fleece Performance Cummins Coolant Bypass Kit VP 98.5-02 with Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-VP-SS

Engine & Performance

Fleece Performance Cummins Coolant Bypass Kit VP 98.5-02 with Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-VP-SS

$379.00

View Details
Fleece Performance Cummins Cooling Fan Pigtail (2013-2022) - FPE-HAR-CUMM-CF-1322

Engine & Performance

Fleece Performance Cummins Cooling Fan Pigtail (2013-2022) - FPE-HAR-CUMM-CF-1322

$59.99

View Details
Fleece Performance Cummins Crankcase Pressure Sensor Pigtail - FPE-HAR-CUMM-CCP-PT

Engine & Performance

Fleece Performance Cummins Crankcase Pressure Sensor Pigtail - FPE-HAR-CUMM-CCP-PT

$25.99

View Details
Fleece Performance Cummins Crankshaft and Camshaft Sensor Pigtail 2003-2018 Dodge 2500/3500 - FPE-HAR-CUMM-CC-PT

Engine & Performance

Fleece Performance Cummins Crankshaft and Camshaft Sensor Pigtail 2003-2018 Dodge 2500/3500 - FPE-HAR-CUMM-CC-PT

$29.99

View Details
Fleece Performance Cummins Crankshaft Position Sensor Extension Harness 2003-2018 Dodge 2500/3500 - FPE-HAR-CUMM-CC-EXT

Engine & Performance

Fleece Performance Cummins Crankshaft Position Sensor Extension Harness 2003-2018 Dodge 2500/3500 - FPE-HAR-CUMM-CC-EXT

$59.99

View Details
Fleece Performance Cummins Cylinder Head Dowels - FPE-CUMM-CYLHD-KIT

Engine & Performance

Fleece Performance Cummins Cylinder Head Dowels - FPE-CUMM-CYLHD-KIT

$20.99

View Details
Fleece Performance Cummins Dual Pump Controller - FPE-CDPC

Engine & Performance

Fleece Performance Cummins Dual Pump Controller - FPE-CDPC

$179.55

View Details
Fleece Performance Cummins Dual Pump Idler Pulley Spacer and Bolt For use with FPE-34022 - FPE-34277

Engine & Performance

Fleece Performance Cummins Dual Pump Idler Pulley Spacer and Bolt For use with FPE-34022 - FPE-34277

$48.98

View Details
Fleece Performance Cummins EGR Valve Pigtail - FPE-HAR-CUMM-EGR-PT

Engine & Performance

Fleece Performance Cummins EGR Valve Pigtail - FPE-HAR-CUMM-EGR-PT

$39.99

View Details
Fleece Performance Cummins Front Gear Housing Dowels - FPE-CUMM-FGHD-KIT

Engine & Performance

Fleece Performance Cummins Front Gear Housing Dowels - FPE-CUMM-FGHD-KIT

$18.99

View Details
Fleece Performance Cummins Fuel Filter Delete, Water in Fuel Sensor Plug (M14x2.0) - FPE-34143-A

Engine & Performance

Fleece Performance Cummins Fuel Filter Delete, Water in Fuel Sensor Plug (M14x2.0) - FPE-34143-A

$12.33

View Details
Fleece Performance Cummins Mechanical Fuel Pump Block Off Plate - FPE-CUMM-FBOP

Engine & Performance

Fleece Performance Cummins Mechanical Fuel Pump Block Off Plate - FPE-CUMM-FBOP

$34.99

View Details
Fleece Performance Cummins Multiuse Sensor Pigtail 2 1997-2019 Dodge 2500/3500 - FPE-HAR-MU-PT-2

Engine & Performance

Fleece Performance Cummins Multiuse Sensor Pigtail 2 1997-2019 Dodge 2500/3500 - FPE-HAR-MU-PT-2

$32.99

View Details
Fleece Performance Cummins Multiuse Sensor Pigtail 3 2007.5-2020 Dodge 2500/3500 - FPE-HAR-MU-PT-3

Engine & Performance

Fleece Performance Cummins Multiuse Sensor Pigtail 3 2007.5-2020 Dodge 2500/3500 - FPE-HAR-MU-PT-3

$33.99

View Details
Fleece Performance Cummins Multiuse Sensor Pigtail 4 1995-2020 Dodge 2500/3500 - FPE-HAR-MU-PT-4

Engine & Performance

Fleece Performance Cummins Multiuse Sensor Pigtail 4 1995-2020 Dodge 2500/3500 - FPE-HAR-MU-PT-4

$29.99

View Details
Fleece Performance Cummins S300-S400 Turbo Installation Kit 2003-2007 - FPE-TURBO-INST-KIT-CUMM59

Engine & Performance

Fleece Performance Cummins S300-S400 Turbo Installation Kit 2003-2007 - FPE-TURBO-INST-KIT-CUMM59

$180.00

View Details
Fleece Performance Cummins S300-S400 Turbo Installation Kit 2007.5-2012 - FPE-TURBO-INST-KIT-CUMM67

Engine & Performance

Fleece Performance Cummins S300-S400 Turbo Installation Kit 2007.5-2012 - FPE-TURBO-INST-KIT-CUMM67

$209.00

View Details
Fleece Performance Cummins Temperature Sensor Pigtail 2007.5-2022 Dodge 2500/3500 - FPE-HAR-CUMM-IAT-PT

Engine & Performance

Fleece Performance Cummins Temperature Sensor Pigtail 2007.5-2022 Dodge 2500/3500 - FPE-HAR-CUMM-IAT-PT

$26.99

View Details
Fleece Performance Cummins Turbo Drain Adapter to 7/8 Inch Hose For 98.5-21 RAM 2500/3500 - FPE-CTDA-78HS

Engine & Performance

Fleece Performance Cummins Turbo Drain Adapter to 7/8 Inch Hose For 98.5-21 RAM 2500/3500 - FPE-CTDA-78HS

$19.99

View Details
Fleece Performance Cummins Turbo Drain Tube Adapter - FPE-CTDA-10AN

Engine & Performance

Fleece Performance Cummins Turbo Drain Tube Adapter - FPE-CTDA-10AN

$19.99

View Details
Fleece Performance Cummins Turbo Drain Tube Kit For 2nd Gen Swaps - FPE-CTDT-KIT

Engine & Performance

Fleece Performance Cummins Turbo Drain Tube Kit For 2nd Gen Swaps - FPE-CTDT-KIT

$99.95

View Details
Fleece Performance Donaldson P553203 Case of 12 Fuel Filters for Fleece L5P Duramax Fuel Filter Kits and 1998.5-2018 Dodge Ram Cummins Auxiliary Fuel Filter Kits - FPE-DON-P553203-12

Engine & Performance

Fleece Performance Donaldson P553203 Case of 12 Fuel Filters for Fleece L5P Duramax Fuel Filter Kits and 1998.5-2018 Dodge Ram Cummins Auxiliary Fuel Filter Kits - FPE-DON-P553203-12

$279.99

View Details
Fleece Performance Dosing Injector Fuel Line Disconnect Tool for 11-16 Duramax - FPE-LML-QCDT

Engine & Performance

Fleece Performance Dosing Injector Fuel Line Disconnect Tool for 11-16 Duramax - FPE-LML-QCDT

$15.99

View Details
Fleece Performance Duramax Billet Coolant Block Off Plate 2001-2023- FPE-DMAX-CBOP

Engine & Performance

Fleece Performance Duramax Billet Coolant Block Off Plate 2001-2023- FPE-DMAX-CBOP

$55.00

View Details
Fleece Performance Duramax CP3K - FPE-DMAX-CP3K

Engine & Performance

Fleece Performance Duramax CP3K - FPE-DMAX-CP3K

$1,349.00

View Details
Fleece Performance Duramax Crankshaft Position Sensor Pigtail (2004.5-2016) - FPE-HAR-DMAX-CPS-0416

Engine & Performance

Fleece Performance Duramax Crankshaft Position Sensor Pigtail (2004.5-2016) - FPE-HAR-DMAX-CPS-0416

$21.99

View Details
Fleece Performance Duramax Fan Extension Harness (L5P) - FPE-HAR-DMAX-FAN-L5P

Engine & Performance

Fleece Performance Duramax Fan Extension Harness (L5P) - FPE-HAR-DMAX-FAN-L5P

$45.99

View Details
Fleece Performance Duramax Fan Extension Harness (LML) - FPE-HAR-DMAX-FAN-LML

Engine & Performance

Fleece Performance Duramax Fan Extension Harness (LML) - FPE-HAR-DMAX-FAN-LML

$45.99

View Details
Fleece Performance Duramax LML Rear Engine Cover Coolant Return Plug - FPE-LML-CP

Engine & Performance

Fleece Performance Duramax LML Rear Engine Cover Coolant Return Plug - FPE-LML-CP

$19.99

View Details
Fleece Performance Duramax MAP/BARO Sensor Pigtail 01-07 - FPE-HAR-DMAX-MAP-0107

Engine & Performance

Fleece Performance Duramax MAP/BARO Sensor Pigtail 01-07 - FPE-HAR-DMAX-MAP-0107

$27.99

View Details
Fleece Performance Duramax Oil Pressure Sensor Pigtail LB7 - FPE-HAR-DMAX-OP-0102

Engine & Performance

Fleece Performance Duramax Oil Pressure Sensor Pigtail LB7 - FPE-HAR-DMAX-OP-0102

$18.99

View Details
Fleece Performance Duramax PowerFlo 750 CP3 - FPE-DMAX-CP3-10MM

Engine & Performance

Fleece Performance Duramax PowerFlo 750 CP3 - FPE-DMAX-CP3-10MM

$2,049.00

View Details
Fleece Performance Duramax Turbo Thermostat Delete Plug - FPE-TURBO-THERM

Engine & Performance

Fleece Performance Duramax Turbo Thermostat Delete Plug - FPE-TURBO-THERM

$37.95

View Details
Fleece Performance Duramax Vane Position Sensor Pigtail LBZ,LMM,LML - FPE-HAR-DMAX-VPS-0616

Engine & Performance

Fleece Performance Duramax Vane Position Sensor Pigtail LBZ,LMM,LML - FPE-HAR-DMAX-VPS-0616

$28.99

View Details
Fleece Performance Duramax Vane Position Sensor Pigtail LLY - FPE-HAR-DMAX-VPS-0405

Engine & Performance

Fleece Performance Duramax Vane Position Sensor Pigtail LLY - FPE-HAR-DMAX-VPS-0405

$28.99

View Details
Fleece Performance Factory Oil Feed Line Fitting for Holset Turbochargers - FPE-HOL-FD-FIT

Engine & Performance

Fleece Performance Factory Oil Feed Line Fitting for Holset Turbochargers - FPE-HOL-FD-FIT

$18.99

View Details
Fleece Performance Freedom Series 12V Cummins Cylinder Head (Street HD) - FPE-61-10013

Engine & Performance

Fleece Performance Freedom Series 12V Cummins Cylinder Head (Street HD) - FPE-61-10013

$1,749.00

View Details
Fleece Performance Freedom Series Duramax Cylinder Head with Cupless Injector Bore for 2001-2004 LB7 (Driver Side) - FPE-61-10001-D-CL

Engine & Performance

Fleece Performance Freedom Series Duramax Cylinder Head with Cupless Injector Bore for 2001-2004 LB7 (Driver Side) - FPE-61-10001-D-CL

$1,199.00

View Details
Fleece Performance Freedom Series Duramax Cylinder Head with Cupless Injector Bore for 2001-2004 LB7 (Passenger Side) - FPE-61-10001-P-CL

Engine & Performance

Fleece Performance Freedom Series Duramax Cylinder Head with Cupless Injector Bore for 2001-2004 LB7 (Passenger Side) - FPE-61-10001-P-CL

$1,199.00

View Details
Fleece Performance Fuel Filter Delete 2019-Present 5th Gen Dodge Ram with Cummins - FPE-FFD-RO-5G

Engine & Performance

Fleece Performance Fuel Filter Delete 2019-Present 5th Gen Dodge Ram with Cummins - FPE-FFD-RO-5G

$64.95

View Details
Fleece Performance Fuel Heater Connector and 6 Inch Pigtail for RAM Cummins 5.9/6.7L - FPE-HAR-CUMM-FH-PT

Engine & Performance

Fleece Performance Fuel Heater Connector and 6 Inch Pigtail for RAM Cummins 5.9/6.7L - FPE-HAR-CUMM-FH-PT

$17.99

View Details