Wiring Harnesses
Choose wiring harnesses for the specific component, control system and application. Check connector types, wire lengths and electrical requirements, and confirm whether relays, switches or adapters are included.
Related categories: Wiring Components · Wiring Connectors · Ignitions and Electrical
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![Bench-Top EFI Test Harness Engine Wiring Harnesses Holley EFI]()
![Bench-Top EFI Test Harness Engine Wiring Harnesses Holley EFI]()
Vendor:Holley EFIBench-Top EFI Test Harness- Regular price
- £279.94
- Regular price
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£279.94 - Sale price
- £279.94
- Unit price
- per
Bench-Top EFI Test HarnessWiring Harness - Bench Top Test - Holley EFI - Each -
Vendor:Holley EFI10-Pin Harness - Sniper TBI
- Regular price
- £69.31
- Regular price
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£69.31 - Sale price
- £69.31
- Unit price
- per
10-Pin Harness - Sniper TBIEFI Wiring Harness - Input / Output Harness - Holley Sniper EFI - Each -
![Wire Harness Kit - EFI Terminator I/O Fuel Injector Harnesses Holley EFI]()
![Wire Harness Kit - EFI Terminator I/O Fuel Injector Harnesses Holley EFI]()
Vendor:Holley EFIWire Harness Kit - EFI Terminator I/O- Regular price
- £63.00
- Regular price
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£63.00 - Sale price
- £63.00
- Unit price
- per
Wire Harness Kit - EFI Terminator I/OEFI Wiring Harness - Input / Output - Holley Terminator EFI - Each -
![7-Pin Main Harness - Sniper TBI Engine Wiring Harnesses Holley EFI]()
![7-Pin Main Harness - Sniper TBI Engine Wiring Harnesses Holley EFI]()
Vendor:Holley EFI7-Pin Main Harness - Sniper TBI- Regular price
- £176.34
- Regular price
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£176.34 - Sale price
- £176.34
- Unit price
- per
7-Pin Main Harness - Sniper TBIEFI Wiring Harness - Main Battery Harness - Fuse / Fuel Pump Relays - Kit -
![Wiring Harness - EFI Digital Dash I/O Adapter Gauge Wiring Harnesses Holley EFI]()
![Wiring Harness - EFI Digital Dash I/O Adapter Gauge Wiring Harnesses Holley EFI]()
Vendor:Holley EFIWiring Harness - EFI Digital Dash I/O Adapter- Regular price
- £419.94
- Regular price
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£419.94 - Sale price
- £419.94
- Unit price
- per
Wiring Harness - EFI Digital Dash I/O AdapterGauge Wiring Harness - EFI Digital Dash - Kit -
![EFI Gauge Module Anolog Style Can Gauges Gauge Wiring Harnesses Holley EFI]()
![EFI Gauge Module Anolog Style Can Gauges Gauge Wiring Harnesses Holley EFI]()
Vendor:Holley EFIEFI Gauge Module Anolog Style Can Gauges- Regular price
- £174.66
- Regular price
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£174.66 - Sale price
- £174.66
- Unit price
- per
EFI Gauge Module Anolog Style Can GaugesGauge Wiring Harness - Analog Gauges - Holley EFI CAN Gauges - Universal - Each -
![Wire Harness LS to SS Map Adapter Engine Wiring Harnesses Holley EFI]()
![Wire Harness LS to SS Map Adapter Engine Wiring Harnesses Holley EFI]()
Vendor:Holley EFIWire Harness LS to SS Map Adapter- Regular price
- £22.34
- Regular price
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£22.34 - Sale price
- £22.34
- Unit price
- per
Wire Harness LS to SS Map AdapterWiring Harness Adapter - Delphi M/P 3 Pin to Delphi GT 3 Pin - GM LS-Series - Each -
![J1A/B Input/Output Connector Engine Wiring Harnesses Holley EFI]()
![J1A/B Input/Output Connector Engine Wiring Harnesses Holley EFI]()
Vendor:Holley EFIJ1A/B Input/Output Connector- Regular price
- £152.26
- Regular price
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£152.26 - Sale price
- £152.26
- Unit price
- per
J1A/B Input/Output ConnectorEFI Wiring Harness - J1A/B - Holley Dominator EFI - Each -
![Auxiliary Harness J2A Connector Engine Wiring Harnesses Holley EFI]()
![Auxiliary Harness J2A Connector Engine Wiring Harnesses Holley EFI]()
Vendor:Holley EFIAuxiliary Harness J2A Connector- Regular price
- £272.10
- Regular price
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£272.10 - Sale price
- £272.10
- Unit price
- per
Auxiliary Harness J2A ConnectorEFI Wiring Harness - J2A Auxiliary Connector Harness - Holley Dominator EFI - Universal - Kit -
![J2B Auxiliary Harness Kit Engine Wiring Harnesses Holley EFI]()
![J2B Auxiliary Harness Kit Engine Wiring Harnesses Holley EFI]()
Vendor:Holley EFIJ2B Auxiliary Harness Kit- Regular price
- £209.38
- Regular price
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£209.38 - Sale price
- £209.38
- Unit price
- per
J2B Auxiliary Harness KitEFI Wiring Harness - J2B Auxiliary Connector Harness - Holley Dominator EFI - Universal - Kit -
![GM LS Coil Sub Harnesses Ignition Wiring Harnesses Holley EFI]()
![GM LS Coil Sub Harnesses Ignition Wiring Harnesses Holley EFI]()
Vendor:Holley EFIGM LS Coil Sub Harnesses- Regular price
- £232.90
- Regular price
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£232.90 - Sale price
- £232.90
- Unit price
- per
GM LS Coil Sub HarnessesIgnition Wiring Harness - Factory Replacement - Injector Sub Harness - GM LS-Series - Pair -
![Sub-Harness Mopar Gen-3 Hemi VVT & SRV Engine Wiring Harnesses Holley EFI]()
![Sub-Harness Mopar Gen-3 Hemi VVT & SRV Engine Wiring Harnesses Holley EFI]()
Vendor:Holley EFISub-Harness Mopar Gen-3 Hemi VVT & SRV- Regular price
- £194.82
- Regular price
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£194.82 - Sale price
- £194.82
- Unit price
- per
Sub-Harness Mopar Gen-3 Hemi VVT & SRVEFI Wiring Harness - Terminator X - Variable Valve Timing - Mopar Gen III Hemi - Each -
![Map Sensor Adapter LS1 & LS2 to LS3 Engine Wiring Harnesses Holley EFI]()
![Map Sensor Adapter LS1 & LS2 to LS3 Engine Wiring Harnesses Holley EFI]()
Vendor:Holley EFIMap Sensor Adapter LS1 & LS2 to LS3- Regular price
- £48.01
- Regular price
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£48.01 - Sale price
- £48.01
- Unit price
- per
Map Sensor Adapter LS1 & LS2 to LS3Wiring Harness Adapter - LS Main Harness to LS3 Map Sensor - Each -
![EFI Pro-Billet Ignition Adapter Ignition Wiring Harnesses Holley EFI]()
![EFI Pro-Billet Ignition Adapter Ignition Wiring Harnesses Holley EFI]()
Vendor:Holley EFIEFI Pro-Billet Ignition Adapter- Regular price
- £47.15
- Regular price
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£47.15 - Sale price
- £47.15
- Unit price
- per
EFI Pro-Billet Ignition AdapterEFI Wiring Harness - Ignition Adapter Harness - MSD Distributors to Holley EFI - Each -
![Wiring Harness Adapter Hyperspark Ignition Ignition Wiring Harnesses Holley EFI]()
![Wiring Harness Adapter Hyperspark Ignition Ignition Wiring Harnesses Holley EFI]()
Vendor:Holley EFIWiring Harness Adapter Hyperspark Ignition- Regular price
- £55.94
- Regular price
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£55.94 - Sale price
- £55.94
- Unit price
- per
Wiring Harness Adapter Hyperspark IgnitionEFI Wiring Harness - Ignition Adapter Harness - HyperSpark Distributors to Holley EFI - Each -
![HP EFI Sub-Harnesses - Smart Coil Ignition Wiring Harnesses Holley EFI]()
![HP EFI Sub-Harnesses - Smart Coil Ignition Wiring Harnesses Holley EFI]()
Vendor:Holley EFIHP EFI Sub-Harnesses - Smart Coil- Regular price
- £335.94
- Regular price
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£335.94 - Sale price
- £335.94
- Unit price
- per
HP EFI Sub-Harnesses - Smart CoilEFI Wiring Harness - Smart Coil - Ignition Coil Wiring - Holley HP / Dominator EFI - Universal - Each -
![Pro-Dash Harness Un-terminated IO Dash Wiring Harnesses Holley EFI]()
![Pro-Dash Harness Un-terminated IO Dash Wiring Harnesses Holley EFI]()
Vendor:Holley EFIPro-Dash Harness Un-terminated IO- Regular price
- £335.94
- Regular price
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£335.94 - Sale price
- £335.94
- Unit price
- per
Pro-Dash Harness Un-terminated IODash Wiring Harness - Pins / Plugs / Wires Included - Kit -
![Coil-Near-Plug Sub Harness - Big Wire Ignition Wiring Harnesses Holley EFI]()
![Coil-Near-Plug Sub Harness - Big Wire Ignition Wiring Harnesses Holley EFI]()
Vendor:Holley EFICoil-Near-Plug Sub Harness - Big Wire- Regular price
- £341.54
- Regular price
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£341.54 - Sale price
- £341.54
- Unit price
- per
Coil-Near-Plug Sub Harness - Big WireIgnition Wiring Harness - Big Wire C-N-P Sub Harness - V8 - Each -
![Flying Lead Main Harness Ignition Wiring Harnesses Holley EFI]()
![Flying Lead Main Harness Ignition Wiring Harnesses Holley EFI]()
Vendor:Holley EFIFlying Lead Main Harness- Regular price
- £503.94
- Regular price
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£503.94 - Sale price
- £503.94
- Unit price
- per
Flying Lead Main HarnessEngine Wiring Harness - Flying Lead - 15 ft Long - Crimped - Universal - Kit -
![Ford TFI Ignition Harness Ignition Wiring Harnesses Holley EFI]()
![Ford TFI Ignition Harness Ignition Wiring Harnesses Holley EFI]()
Vendor:Holley EFIFord TFI Ignition Harness- Regular price
- £150.02
- Regular price
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£150.02 - Sale price
- £150.02
- Unit price
- per
Ford TFI Ignition HarnessEFI Wiring Harness - Ignition Adapter Harness - Ford TFI Distributor to Holley Avenger / HP / Dominator EFI - Each -
![LS Coil On Plug Harness Universal Ignition Wiring Harnesses Holley EFI]()
![LS Coil On Plug Harness Universal Ignition Wiring Harnesses Holley EFI]()
Vendor:Holley EFILS Coil On Plug Harness Universal- Regular price
- £223.94
- Regular price
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£223.94 - Sale price
- £223.94
- Unit price
- per
LS Coil On Plug Harness UniversalIgnition Wiring Harness - Coil-On-Plug to Sub Harness - Holley HP / Dominator EFI - Each -
![EFI Main Power Harness Engine Wiring Harnesses Holley EFI]()
![EFI Main Power Harness Engine Wiring Harnesses Holley EFI]()
Vendor:Holley EFIEFI Main Power Harness- Regular price
- £124.26
- Regular price
-
£124.26 - Sale price
- £124.26
- Unit price
- per
EFI Main Power HarnessEFI Wiring Harness - Main Power - Holley Dominator EFI - Each -
![J3 Connector & Harness Fuel Injector Harnesses Holley EFI]()
![J3 Connector & Harness Fuel Injector Harnesses Holley EFI]()
Vendor:Holley EFIJ3 Connector & Harness- Regular price
- £209.38
- Regular price
-
£209.38 - Sale price
- £209.38
- Unit price
- per
J3 Connector & HarnessWiring Harness - J3 Auxiliary Input / Output Connector - Dominator EFI - Each -
![J4 Connector & Harness Fuel Injector Harnesses Holley EFI]()
![J4 Connector & Harness Fuel Injector Harnesses Holley EFI]()
Vendor:Holley EFIJ4 Connector & Harness- Regular price
- £267.62
- Regular price
-
£267.62 - Sale price
- £267.62
- Unit price
- per
J4 Connector & HarnessEFI Wiring Harness - J4 Auxiliary Harness - Holley Dominator EFI - Each
Showing 121 -144 of 884 items
