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Summit Racing SpeedCard - learn how to get 15% back up to $150

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Extension Harnesses

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Results 1 - 25 of 35

Fleece Performance Fan Extension Harnesses for 2013-2018 2500, 3500 - FPE-HAR-CUMM-FAN-1318

Fleece Performance Fan Extension Harnesses for 2013-2018 2500, 3500 - FPE-HAR-CUMM-FAN-1318

Fleece Performance Fan Extension Harnesses for 2013-2018 2500, 3500 - FPE-HAR-CUMM-FAN-1318

Extension Harness, Cooling Fan, Diesel, Ram, Each

Part Number: FLE-S0541

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Fleece Performance Fan Extension Harnesses FPE-HAR-DMAX-FAN-LML

Fleece Performance Fan Extension Harnesses FPE-HAR-DMAX-FAN-LML

Fleece Performance Fan Extension Harnesses FPE-HAR-DMAX-FAN-LML

Duramax Fan Extension Harness (LML)

Part Number: FLE-S0475

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Fleece Performance Fan Extension Harnesses FPE-HAR-FMC-FAN-1118

Fleece Performance Fan Extension Harnesses FPE-HAR-FMC-FAN-1118

Fleece Performance Fan Extension Harnesses FPE-HAR-FMC-FAN-1118

Extension Harness, Cooling Fan, Diesel, Ford, 6.7L, Each

Part Number: FLE-S0571

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Fleece Performance Fan Extension Harnesses FPE-HAR-DMAX-FAN-L5P

Fleece Performance Fan Extension Harnesses FPE-HAR-DMAX-FAN-L5P

Fleece Performance Fan Extension Harnesses FPE-HAR-DMAX-FAN-L5P

Duramax Fan Extension Harness (L5P)

Part Number: FLE-S0476

Not Yet Reviewed

Estimated Ship Date: Today

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Fleece Performance Fan Extension Harnesses for 2019-2024 2500, 3500 - FPE-HAR-CUMM-FAN-1924

Fleece Performance Fan Extension Harnesses for 2019-2024 2500, 3500 - FPE-HAR-CUMM-FAN-1924

Fleece Performance Fan Extension Harnesses for 2019-2024 2500, 3500 - FPE-HAR-CUMM-FAN-1924

Extension Harness, Cooling Fan, Diesel, Ram, Each

Part Number: FLE-S0566

Not Yet Reviewed

Estimated Ship Date: Today

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Fleece Performance Turbo Vane Position Sensor Harness Adapters FPE-HAR-DMAX-VPS-ADPT

Fleece Performance Turbo Vane Position Sensor Harness Adapters FPE-HAR-DMAX-VPS-ADPT

Fleece Performance Turbo Vane Position Sensor Harness Adapters FPE-HAR-DMAX-VPS-ADPT

Turbo Vane Position Sensor Adapter Harness for LLY Duramax

Part Number: FLE-S0477

Not Yet Reviewed

Estimated Ship Date: Today

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Fleece Performance Fuel Heater Extension Harnesses FPE-FH-FMC-1724-CC-EXT

Fleece Performance Fuel Heater Extension Harnesses FPE-FH-FMC-1724-CC-EXT

Fleece Performance Fuel Heater Extension Harnesses FPE-FH-FMC-1724-CC-EXT

Extension Harness, Fuel Heater, Cab and Chassis with Fleece Performance Fuel Heater, Ford, Each

Part Number: FLE-S0538

Not Yet Reviewed

Estimated Ship Date: Today

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BD Diesel Fuel Pump Driver Relocation Harness 1036533

BD Diesel Fuel Pump Driver Relocation Harness 1036533

BD Diesel Fuel Pump Driver Relocation Harness 1036533

Extension Harness, Fuel Injection Pump Driver Extension Cable, 72 Inch, Each

Part Number: BDD-1036533

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

BD Diesel Fuel Pump Driver Relocation Harness 1036532

BD Diesel Fuel Pump Driver Relocation Harness 1036532

BD Diesel Fuel Pump Driver Relocation Harness 1036532

Extension Harness, Fuel Injection Pump Driver Extension Cable, 40 Inch, Each

Part Number: BDD-1036532

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Bostech Auto Extension Harnesses WH02643

Bostech Auto Extension Harnesses WH02643

Bostech Auto Extension Harnesses WH02643

Harness 2008-2010 Ford 6.4l PowerStroke

Part Number: BTD-WH02643

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH02646

Bostech Auto Extension Harnesses WH02646

Bostech Auto Extension Harnesses WH02646

Harness 2008-2010 Ford 6.4l PowerStroke

Part Number: BTD-WH02646

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH02712

Bostech Auto Extension Harnesses WH02712

Bostech Auto Extension Harnesses WH02712

Harness 2003-2010 Ford 6.0L PowerStroke

Part Number: BTD-WH02712

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH02954

Bostech Auto Extension Harnesses WH02954

Bostech Auto Extension Harnesses WH02954

Harness 2003 Ford 6.0L PowerStroke

Part Number: BTD-WH02954

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH02958

Bostech Auto Extension Harnesses WH02958

Bostech Auto Extension Harnesses WH02958

Harness 2004 Ford 6.0L PowerStroke

Part Number: BTD-WH02958

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH01852

Bostech Auto Extension Harnesses WH01852

Bostech Auto Extension Harnesses WH01852

Harness 1995-2001 General Motors 6.5L

Part Number: BTD-WH01852

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH01853

Bostech Auto Extension Harnesses WH01853

Bostech Auto Extension Harnesses WH01853

Harness 1995-2001 General Motors 6.5L

Part Number: BTD-WH01853

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH01857

Bostech Auto Extension Harnesses WH01857

Bostech Auto Extension Harnesses WH01857

Harness 1995-2001 General Motors 6.5L

Part Number: BTD-WH01857

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH02007

Bostech Auto Extension Harnesses WH02007

Bostech Auto Extension Harnesses WH02007

Harness 2004-2007 Ford 6.0L PowerStroke

Part Number: BTD-WH02007

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH02962

Bostech Auto Extension Harnesses WH02962

Bostech Auto Extension Harnesses WH02962

Harness 2005-2007 Ford 6.0L PowerStroke

Part Number: BTD-WH02962

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH03088

Bostech Auto Extension Harnesses WH03088

Bostech Auto Extension Harnesses WH03088

Harness 2007-2018 Dodge / Ram 6.7L Cummins

Part Number: BTD-WH03088

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH09230

Bostech Auto Extension Harnesses WH09230

Bostech Auto Extension Harnesses WH09230

Harness 2002-2011 Volkswagen 1.9L BEW / BRM

Part Number: BTD-WH09230

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH03093

Bostech Auto Extension Harnesses WH03093

Bostech Auto Extension Harnesses WH03093

Harness Dodge / Ram 5.9L / 6.7L Cummins

Part Number: BTD-WH03093

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH01851

Bostech Auto Extension Harnesses WH01851

Bostech Auto Extension Harnesses WH01851

Harness 1995-2001 General Motors 6.5L

Part Number: BTD-WH01851

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH01856

Bostech Auto Extension Harnesses WH01856

Bostech Auto Extension Harnesses WH01856

Harness 1995-2001 General Motors 6.5L

Part Number: BTD-WH01856

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Bostech Auto Extension Harnesses WH02067

Bostech Auto Extension Harnesses WH02067

Bostech Auto Extension Harnesses WH02067

Harness 1994-2010 Ford 7.3L / 6.0L PowerStroke

Part Number: BTD-WH02067

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

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