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UnderDog Diesel

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Engine & Performance

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Fleece Performance Fuel Pressure Regulator and Multiuse Pigtail - FPE-HAR-FPR-PT

Engine & Performance

Fleece Performance Fuel Pressure Regulator and Multiuse Pigtail - FPE-HAR-FPR-PT

$27.99

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Fleece Performance Fuel Pressure Regulator Wiring Harness for 2006-2010 6.6L Duramax - FPE-HAR-DMAX-FPR

Engine & Performance

Fleece Performance Fuel Pressure Regulator Wiring Harness for 2006-2010 6.6L Duramax - FPE-HAR-DMAX-FPR

$69.99

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Fleece Performance Fuel System Upgrade Kit with PowerFlo Lift Pump for 03-04 Dodge Cummins - FPE-34755

Engine & Performance

Fleece Performance Fuel System Upgrade Kit with PowerFlo Lift Pump for 03-04 Dodge Cummins - FPE-34755

$1,099.00

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Fleece Performance Fuel System Upgrade Kit with PowerFlo Lift Pump for 98.5-2002 Dodge Cummins - FPE-34754

Engine & Performance

Fleece Performance Fuel System Upgrade Kit with PowerFlo Lift Pump for 98.5-2002 Dodge Cummins - FPE-34754

$1,049.00

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Fleece Performance GM Duramax Oil Cooler Adapter Kit - FPE-DMAX-OCADPT

Engine & Performance

Fleece Performance GM Duramax Oil Cooler Adapter Kit - FPE-DMAX-OCADPT

$99.00

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Fleece Performance Green Anodized Billet Fuel Cap For 2013-2018 Cummins - FPE-FC-1316-GRN

Engine & Performance

Fleece Performance Green Anodized Billet Fuel Cap For 2013-2018 Cummins - FPE-FC-1316-GRN

$37.14

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Fleece Performance HE351 CW Actuator Solenoid Plug w/ Boost Reference - FPE-34804

Engine & Performance

Fleece Performance HE351 CW Actuator Solenoid Plug w/ Boost Reference - FPE-34804

$28.91

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Fleece Performance HE351VE and HE300VE/VG Turbine Shaft Speed Sensor - FPE-351-SP-SEN

Engine & Performance

Fleece Performance HE351VE and HE300VE/VG Turbine Shaft Speed Sensor - FPE-351-SP-SEN

$139.99

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Fleece Performance HE400VG/HE451VE Turbocharger for Cummins ISX - 64mm - FPE-HE4-64

Engine & Performance

Fleece Performance HE400VG/HE451VE Turbocharger for Cummins ISX - 64mm - FPE-HE4-64

$4,499.00

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Fleece Performance HE400VG/HE451VE Turbocharger for Cummins ISX - 67mm - FPE-HE4-67

Engine & Performance

Fleece Performance HE400VG/HE451VE Turbocharger for Cummins ISX - 67mm - FPE-HE4-67

$4,499.00

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Fleece Performance Holset HE300VE/VG Turbocharger Actuator Pigtail - FPE-HAR-CUMM-VGT-PT

Engine & Performance

Fleece Performance Holset HE300VE/VG Turbocharger Actuator Pigtail - FPE-HAR-CUMM-VGT-PT

$27.99

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Fleece Performance HP Fuel Line Adaptation Kit - 5.9L to 6.7L Cummins CP3 - FPE-CUMM-CP3-FL-ADPT-KIT

Engine & Performance

Fleece Performance HP Fuel Line Adaptation Kit - 5.9L to 6.7L Cummins CP3 - FPE-CUMM-CP3-FL-ADPT-KIT

$119.99

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Fleece Performance Injector Connector with Pigtail for 2006-Present RAM Cummins 5.9/6.7L - FPE-HAR-CUMM-INJ-PT

Engine & Performance

Fleece Performance Injector Connector with Pigtail for 2006-Present RAM Cummins 5.9/6.7L - FPE-HAR-CUMM-INJ-PT

$22.99

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Fleece Performance Internal Wire Harness Connector and Seal for Allison LCT and GM 4T65-E - FPE-HAR-GM-LCT-SEAL

Engine & Performance

Fleece Performance Internal Wire Harness Connector and Seal for Allison LCT and GM 4T65-E - FPE-HAR-GM-LCT-SEAL

$22.99

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Fleece Performance Internal Wire Harness Seal and O-ring for Allison LCT and GM 4T65-E 7-Pack - FPE-HAR-GM-LCT-SEAL-7P

Engine & Performance

Fleece Performance Internal Wire Harness Seal and O-ring for Allison LCT and GM 4T65-E 7-Pack - FPE-HAR-GM-LCT-SEAL-7P

$139.99

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Fleece Performance L5P Fuel Filter Upgrade Kit (17-19 Short & Long Bed / 20-24 Long Bed)

Engine & Performance

Fleece Performance L5P Fuel Filter Upgrade Kit (17-19 Short & Long Bed / 20-24 Long Bed)

$249.00

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Fleece Performance L5P Fuel Filter Upgrade Kit (20-25 Short Bed)

Engine & Performance

Fleece Performance L5P Fuel Filter Upgrade Kit (20-25 Short Bed)

$249.00

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Fleece Performance LB7 Duramax Injection Lines Complete Set 8 - FPE-34611

Engine & Performance

Fleece Performance LB7 Duramax Injection Lines Complete Set 8 - FPE-34611

$379.05

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Fleece Performance LB7 Duramax Intake Air Heater Delete Plug - FPE-LB7-IAH-DELETE

Engine & Performance

Fleece Performance LB7 Duramax Intake Air Heater Delete Plug - FPE-LB7-IAH-DELETE

$37.95

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Fleece Performance LB7 Duramax Outer Injector Connector Pigtail - FPE-HAR-DMAX-LB7-INJ-PT

Engine & Performance

Fleece Performance LB7 Duramax Outer Injector Connector Pigtail - FPE-HAR-DMAX-LB7-INJ-PT

$29.99

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Fleece Performance LB7 High Pressure Injection Line (1 and 8) Fleece - FPE-FL-LB7-18

Engine & Performance

Fleece Performance LB7 High Pressure Injection Line (1 and 8) Fleece - FPE-FL-LB7-18

$68.99

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Fleece Performance LB7 High Pressure Injection Line (2 and 7) For 01-04 Duramax LB7 Fleece - FPE-FL-LB7-27

Engine & Performance

Fleece Performance LB7 High Pressure Injection Line (2 and 7) For 01-04 Duramax LB7 Fleece - FPE-FL-LB7-27

$68.99

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Fleece Performance LB7 High Pressure Injection Line (3 and 6) For 01-04 Duramax LB7 Fleece - FPE-FL-LB7-36

Engine & Performance

Fleece Performance LB7 High Pressure Injection Line (3 and 6) For 01-04 Duramax LB7 Fleece - FPE-FL-LB7-36

$68.99

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Fleece Performance LB7 High Pressure Injection Line for 01-04 Duramax LB& (4 and 5) Fleece - FPE-FL-LB7-45

Engine & Performance

Fleece Performance LB7 High Pressure Injection Line for 01-04 Duramax LB& (4 and 5) Fleece - FPE-FL-LB7-45

$68.99

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Fleece Performance LBZ/LMM Duramax High Pressure Injection Line Kit - FPE-FL-DMAX-LBZLMM-SET

Engine & Performance

Fleece Performance LBZ/LMM Duramax High Pressure Injection Line Kit - FPE-FL-DMAX-LBZLMM-SET

$569.00

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Fleece Performance LBZ/LMM Duramax High Pressure Injection Line (Number 1 and Number 8) - FPE-FL-LBZLMM-18

Engine & Performance

Fleece Performance LBZ/LMM Duramax High Pressure Injection Line (Number 1 and Number 8) - FPE-FL-LBZLMM-18

$79.99

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Fleece Performance LBZ/LMM Duramax High Pressure Injection Line (Number 2 and Number 7) - FPE-FL-LBZLMM-27

Engine & Performance

Fleece Performance LBZ/LMM Duramax High Pressure Injection Line (Number 2 and Number 7) - FPE-FL-LBZLMM-27

$79.99

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Fleece Performance LBZ/LMM Duramax High Pressure Injection Line (Number 3 and Number 6) - FPE-FL-LBZLMM-36

Engine & Performance

Fleece Performance LBZ/LMM Duramax High Pressure Injection Line (Number 3 and Number 6) - FPE-FL-LBZLMM-36

$79.99

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Fleece Performance LBZ/LMM Duramax High Pressure Injection Line (Number 4 and Number 5) - FPE-FL-LBZLMM-45

Engine & Performance

Fleece Performance LBZ/LMM Duramax High Pressure Injection Line (Number 4 and Number 5) - FPE-FL-LBZLMM-45

$79.99

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

Engine & Performance

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

$489.00

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Fleece Performance LLY Duramax High Pressure Injection Line (Number 1 and Number 8) - FPE-FL-LLY-18

Engine & Performance

Fleece Performance LLY Duramax High Pressure Injection Line (Number 1 and Number 8) - FPE-FL-LLY-18

$69.99

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Fleece Performance LLY Duramax High Pressure Injection Line (Number 2 and Number 7) - FPE-FL-LLY-27

Engine & Performance

Fleece Performance LLY Duramax High Pressure Injection Line (Number 2 and Number 7) - FPE-FL-LLY-27

$69.99

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Fleece Performance LLY Duramax High Pressure Injection Line (Number 3 and Number 6) - FPE-FL-LLY-36

Engine & Performance

Fleece Performance LLY Duramax High Pressure Injection Line (Number 3 and Number 6) - FPE-FL-LLY-36

$69.99

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Fleece Performance LLY Duramax High Pressure Injection Line (Number 4 and Number 5) - FPE-FL-LLY-45

Engine & Performance

Fleece Performance LLY Duramax High Pressure Injection Line (Number 4 and Number 5) - FPE-FL-LLY-45

$69.99

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Fleece Performance MAF Sensor Pigtail for 6.7 Cummins - FPE-HAR-CUMM-MAF-PT

Engine & Performance

Fleece Performance MAF Sensor Pigtail for 6.7 Cummins - FPE-HAR-CUMM-MAF-PT

$29.99

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Fleece Performance MAP Sensor and Airbox Control Valve Pigtail - FPE-HAR-MU-PT-7

Engine & Performance

Fleece Performance MAP Sensor and Airbox Control Valve Pigtail - FPE-HAR-MU-PT-7

$28.99

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Fleece Performance MAP Sensor Spacer and Boost Reference Port for L5P Duramax - FPE-L5P-MAP-SPR

Engine & Performance

Fleece Performance MAP Sensor Spacer and Boost Reference Port for L5P Duramax - FPE-L5P-MAP-SPR

$68.99

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Fleece Performance Modified LB7 Intake Horn - FPE-INTAKEHORN

Engine & Performance

Fleece Performance Modified LB7 Intake Horn - FPE-INTAKEHORN

$99.75

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Fleece Performance MOPAR Pressure Sensor Pigtail - FPE-HAR-MOPAR-PS-0209

Engine & Performance

Fleece Performance MOPAR Pressure Sensor Pigtail - FPE-HAR-MOPAR-PS-0209

$27.99

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Fleece Performance Multi-Use Sensor Pigtail 9 - FPE-HAR-MU-PT-9

Engine & Performance

Fleece Performance Multi-Use Sensor Pigtail 9 - FPE-HAR-MU-PT-9

$29.99

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Fleece Performance Multi-Use Sensor Pigtail - No 8 - FPE-HAR-MU-PT-8

Engine & Performance

Fleece Performance Multi-Use Sensor Pigtail - No 8 - FPE-HAR-MU-PT-8

$14.99

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Fleece Performance Multiuse Pressure Sensor 36 Inch Pigtail - FPE-HAR-MU-PT-6

Engine & Performance

Fleece Performance Multiuse Pressure Sensor 36 Inch Pigtail - FPE-HAR-MU-PT-6

$24.99

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Fleece Performance Multiuse Sensor 6 Inch Pigtail - FPE-HAR-MU-PT-5

Engine & Performance

Fleece Performance Multiuse Sensor 6 Inch Pigtail - FPE-HAR-MU-PT-5

$19.99

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Fleece Performance Multiuse Sensor Pigtail No 11 - FPE-HAR-MU-PT-11

Engine & Performance

Fleece Performance Multiuse Sensor Pigtail No 11 - FPE-HAR-MU-PT-11

$18.99

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Fleece Performance MY 2002 Cummins MAP Sensor Adapter Harness - FPE-HAR-CUMM-ADPT-MAP-02

Engine & Performance

Fleece Performance MY 2002 Cummins MAP Sensor Adapter Harness - FPE-HAR-CUMM-ADPT-MAP-02

$59.95

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Fleece Performance OE Replacement Head Gasket for 5.9L Cummins (Thick) - FPE-CUMM-HG-5.9

Engine & Performance

Fleece Performance OE Replacement Head Gasket for 5.9L Cummins (Thick) - FPE-CUMM-HG-5.9

$159.99

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Fleece Performance OE Replacement Head Gasket for 6.7L Cummins (Standard Thickness) - FPE-CUMM-HG-6.7

Engine & Performance

Fleece Performance OE Replacement Head Gasket for 6.7L Cummins (Standard Thickness) - FPE-CUMM-HG-6.7

$119.99

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Fleece Performance OE Replacement Rocker Arm Assembly for 5.9L and 6.7L Cummins Engines - FPE-CUMM-RAA-CR

Engine & Performance

Fleece Performance OE Replacement Rocker Arm Assembly for 5.9L and 6.7L Cummins Engines - FPE-CUMM-RAA-CR

$119.99

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