Fuel Injection System Wiring Harnesses

Harness Adapter, IAC to FAST EFI, Chevy, Pontiac, Each

Part Number: FST-308023

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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

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Estimated Ship Date: Oct 1, 2025 if ordered today

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Fuel Injection System Wiring Harnesses, Holley EFI, Coyote Ti-VCT, with Main, Power, Injector, Coil Harnesses, for HP, Dominator ECU, Ford, 5.0L, Kit

Part Number: HLY-558-510

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Estimated Ship Date: Oct 3, 2025 if ordered today

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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: Nov 21, 2025 if ordered today

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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

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Estimated Ship Date: Oct 2, 2025 if ordered today

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

Part Number: HTH-HT-186500

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Wiring Harness, EGR Adapter Harness, Chevy, Each

Part Number: PRF-60119

4.0 out of 5 stars ( 1 )

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Harness, Fuel Injection, Standard Replacement, BlueBird, Crane Carrier, Ford, Freightliner, Kenworth, Peterbilt, Pierce, Sterling, Ea

Part Number: RNB-904-479

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Estimated Ship Date: Oct 3, 2025 if ordered today

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Wiring Harness, Fuel Injector, FAST XFI, Chevy, 18436572 Firing Order, Each

Part Number: FST-301200

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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

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Estimated Ship Date: Oct 1, 2025 if ordered today

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Wiring Harness, Fuel Injection, GM, TPI, Front Mount Fuse Block, Spade Fuse, Extra-Long Harness, Universal, Kit

Part Number: PRF-60203

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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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

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Estimated Ship Date: Oct 1, 2025 if ordered today

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Fuel Injection System Wiring Harnesses, Holley EFI, Ford V8, Universal MPFI, with Main, Power, Injector Harnesses, for HP, Dominator ECU, Kit

Part Number: HLY-558-508

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Estimated Ship Date: Oct 1, 2025 if ordered today

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HARNESS, FAST ANALOG INPUT KIT

Part Number: FST-301402

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Estimated Ship Date: Nov 21, 2025 if ordered today

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Mini Delphi Multec 2 Injector Harness Extension 9" 8pcs

Part Number: ICB-WEINJ31X8-9

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Fuel Injection System Wiring Harnesses, Holley EFI, Unterminated, Ignition Harness, with Pins, Seals, Connector, for HP, Dominator EFI Systems, Kit

Part Number: HLY-558-306

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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

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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

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Estimated Ship Date: Oct 3, 2025 if ordered today

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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

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Estimated Ship Date: Oct 1, 2025 if ordered today

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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

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Estimated Ship Date: Oct 1, 2025 if ordered today

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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

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Estimated Ship Date: Oct 1, 2025 if ordered today

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

Part Number: PRF-60312

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Harness, Fuel Injection, Standard Replacement, Direct Injection, Pulse Width Modulation, IC Coorporation, International, Medium/Heavy Duty, Each

Part Number: RNB-904-476

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Estimated Ship Date: Oct 3, 2025 if ordered today

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

Part Number: PRF-60322

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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LS2/LS3 Extension Harness With TPS Output wire

Part Number: NXO-00-52042

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Estimated Ship Date: Sep 29, 2025 if ordered today

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