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Fuel Injection System Wiring Harnesses

Individual Parts
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Results 101 - 125 of 149

FAST XFI Fuel Injector Harnesses 301201

FAST XFI Fuel Injector Harnesses 301201

FAST XFI Fuel Injector Harnesses 301201

Wiring Harness, Fuel Injector, FAST XFI, Chevy, 18736542 Firing Order, Each

Part Number: FST-301201

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Standard Motor Diesel Fuel Injector Harnesses IFH4

Standard Motor Diesel Fuel Injector Harnesses IFH4

Standard Motor Diesel Fuel Injector Harnesses IFH4

Diesel Fuel Injection Harness

Part Number: SMP-IFH4

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Holley Main Power Harnesses 558-319

Holley Main Power Harnesses 558-319

Holley Main Power Harnesses 558-319

Fuel Injection System Wiring Harnesses, Holley EFI, Main Power Harness, Coyote Ti-VCT, Plug-and-Play, for Dominator/HP EFI Systems, Ford, 5.0L, Each

Part Number: HLY-558-319

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Holley Replacement Fuel Injector Wiring Harnesses 558-500

Holley Replacement Fuel Injector Wiring Harnesses 558-500

Holley Replacement Fuel Injector Wiring Harnesses 558-500

Fuel Injection System Wiring Harnesses, Holley EFI, GM LS 24X Crank Sensor, Includes Power, LS1 Injector, Main Harnesses, for HP, Dominator ECUs, Kit

Part Number: HLY-558-500

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Haltech Nexus Rebel LS Terminated Harnesses HT-186500

Haltech Nexus Rebel LS Terminated Harnesses HT-186500

Haltech Nexus Rebel LS Terminated Harnesses HT-186500

Wiring Harness, Nexus Rebel, ECU, Plug-and-Play, Standard Length, Chevy, LS, Each

Part Number: HTH-HT-186500

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Holley EFI Systems Wiring Harnesses 558-115

Holley EFI Systems Wiring Harnesses 558-115

Holley EFI Systems Wiring Harnesses 558-115

Wiring Harnesses, Holley EFI, Gen III Hemi, Throttle Position, Idle Air Controls, Factory Connectors, Chrysler, Dodge, Jeep, Hemi, Early Model, Each

Part Number: HLY-558-115

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Holley EFI Systems Wiring Harnesses 558-203

Holley EFI Systems Wiring Harnesses 558-203

Holley EFI Systems Wiring Harnesses 558-203

Fuel Injection System Wiring Harnesses, Holley EFI, 6 Cylinder, MPFI, SFI, TBI, Injector Harness, for HP, Dominator EFI Systems, Universal, Each

Part Number: HLY-558-203

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Holley EFI Systems Wiring Harnesses 558-113

Holley EFI Systems Wiring Harnesses 558-113

Holley EFI Systems Wiring Harnesses 558-113

Wiring Harnesses, Holley EFI, Ford 2V/4V Modular, Main Harness, Multi-Port Fuel Injection, for Holley Smart Coils, HP EFI System, Ford, 4.6-5.4L, Each

Part Number: HLY-558-113

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

The Detail Zone Ford 5.0 EFI Direct-Fit Wiring Systems TDZ75

The Detail Zone Ford 5.0 EFI Direct-Fit Wiring Systems TDZ75

The Detail Zone Ford 5.0 EFI Direct-Fit Wiring Systems TDZ75

Wiring Harness, Direct-Fit, EFI, Mass Airflow, Ford, Kit

Part Number: RFW-TDZ75

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

Holley EFI Systems Wiring Harnesses 558-101

Holley EFI Systems Wiring Harnesses 558-101

Holley EFI Systems Wiring Harnesses 558-101

Wiring Harnesses, Holley EFI, Replacement Harness, Multi-Port, Speed Density Metered, for Avenger, HP, Dominator, EFI Systems, with Stealth Ram, Each

Part Number: HLY-558-101

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

FAST Analog Input Kits 301402

FAST Analog Input Kits 301402

FAST Analog Input Kits 301402

HARNESS, FAST ANALOG INPUT KIT

Part Number: FST-301402

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

Nitrous Outlet Fuel Injection System Wiring Harnesses 00-52042

Made in the USA Nitrous Outlet Fuel Injection System Wiring Harnesses 00-52042

Nitrous Outlet Fuel Injection System Wiring Harnesses 00-52042

LS2/LS3 Extension Harness With TPS Output wire

Part Number: NXO-00-52042

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Holley Drive-By-Wire Throttle Body Wiring Harnesses 558-417

Holley Drive-By-Wire Throttle Body Wiring Harnesses 558-417

Holley Drive-By-Wire Throttle Body Wiring Harnesses 558-417

Fuel Injections System Wiring Harnesses, Gen III Hemi, Drive-By-Wire Harness, Early Pedal, OE Connectors, Plug-and-Play, Chrysler, Dodge, Jeep, Kit

Part Number: HLY-558-417

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

FAST Fuel Injection System Wiring Harnesses 43227

FAST Fuel Injection System Wiring Harnesses 43227

FAST Fuel Injection System Wiring Harnesses 43227

MAIN HARNESS

Part Number: FST-43227

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Holley Drive-By-Wire Throttle Body Wiring Harnesses 558-418

Holley Drive-By-Wire Throttle Body Wiring Harnesses 558-418

Holley Drive-By-Wire Throttle Body Wiring Harnesses 558-418

Fuel Injections System Wiring Harnesses, Gen III Hemi, Drive-By-Wire Harness, Late Pedal, OE Connectors, Plug-and-Play, Chrysler, Dodge, Jeep, Kit

Part Number: HLY-558-418

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Holley EFI Systems Wiring Harnesses 558-439

Holley EFI Systems Wiring Harnesses 558-439

Holley EFI Systems Wiring Harnesses 558-439

Fuel Injection System Wiring Harnesses, Holley EFI, Terminator, Throttle Body Systems, Plug-and-Play, Upgrade Harness, for 205 lb./hr. Injectors, Each

Part Number: HLY-558-439

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Holley Terminator Stealth 2x4 Primary Throttle Body Sub Harnesses 558-459

Holley Terminator Stealth 2x4 Primary Throttle Body Sub Harnesses 558-459

Holley Terminator Stealth 2x4 Primary Throttle Body Sub Harnesses 558-459

Fuel Injection System Wiring Harnesses, Holley EFI, Terminator Stealth 2X4, Primary Throttle Body Sub Harness, Pre-Terminated, Plug-and-Play, Each

Part Number: HLY-558-459

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Painless Performance Fuel Injection Harnesses 60312

Made in the USA Painless Performance Fuel Injection Harnesses 60312

Painless Performance Fuel Injection Harnesses 60312

Wiring Harness, Fuel Injection, Emission Harness, Multi-Port, Mass Airflow, Chevy, Pontiac, 5.7L, V8, Each

Part Number: PRF-60312

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

AEM Electronics CD-7 Plug and Play Adapter Cables 30-2214

AEM Electronics CD-7 Plug and Play Adapter Cables 30-2214

AEM Electronics CD-7 Plug and Play Adapter Cables 30-2214

Adapter cable, CD-7/CD-7L Plug & Play Adapter Harness for Holley Dominator and HP EFI, Each

Part Number: AVM-30-2214

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Standard Motor Diesel Fuel Injector Harnesses IFH8

Standard Motor Diesel Fuel Injector Harnesses IFH8

Standard Motor Diesel Fuel Injector Harnesses IFH8

Diesel Fuel Injection Harness

Part Number: SMP-IFH8

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Painless Performance Fuel Injection Harnesses 60322

Made in the USA Painless Performance Fuel Injection Harnesses 60322

Painless Performance Fuel Injection Harnesses 60322

Wiring Harness, Gen III Vortec, Chevy, Small Block, Each

Part Number: PRF-60322

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Painless Performance Emission Device Control Harnesses 60320

Made in the USA Painless Performance Emission Device Control Harnesses 60320

Painless Performance Emission Device Control Harnesses 60320

Emission Wiring Harness, Rear Oxygen Sensor and Fuel Tank Pressure Sensor, Each

Part Number: PRF-60320

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Fleece Performance Fuel Injection Wiring Harnesses FPE-CP3X2

Fleece Performance Fuel Injection Wiring Harnesses FPE-CP3X2

Fleece Performance Fuel Injection Wiring Harnesses FPE-CP3X2

Fuel pump harness, Dual CP3, Cummins, Each

Part Number: FLE-FPE-CP3X2

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

The Detail Zone Telorvek GM Ram Jet EFI Wiring Harnesses RJ42

The Detail Zone Telorvek GM Ram Jet EFI Wiring Harnesses RJ42

The Detail Zone Telorvek GM Ram Jet EFI Wiring Harnesses RJ42

Wiring Harness, EFI, Speed Density, GM Ram Jet, Kit

Part Number: RFW-RJ42

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Painless Performance Fuel Injection Harnesses 60324

Made in the USA Painless Performance Fuel Injection Harnesses 60324

Painless Performance Fuel Injection Harnesses 60324

Wiring Harness, Gen III Vortec, Chevy, Small Block, LS1, Each

Part Number: PRF-60324

Not Yet Reviewed

Estimated Ship Date: Today

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