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Engine Wiring Harnesses

Engine Wiring Harnesses

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  • Adapter Harness Wideband Terminator-X
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    Adapter Harness Wideband Terminator-X

    HOLLEY

    $66.75
    Wiring Harness Adapter - Terminator X - Wideband - Each
    HLY558-463
    $66.75
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    $66.75
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  • Crank/Cam Ignition Harness
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    Crank/Cam Ignition Harness

    HOLLEY

    $103.95
    EFI Wiring Harness - Camshaft Ignition Harness - Holley HP / Dominator EFI - Universal - Kit
    HLY558-431
    $103.95
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    $103.95
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  • Can Adapter- New Device to 2-Pin Main Harness
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    Can Adapter- New Device to 2-Pin Main Harness

    HOLLEY

    $44.74
    Data Transfer Cable Adapter - 2 Pin Harness to CAN - Each
    HLY558-430
    $44.74
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    $44.74
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  • Dominator EFI DBW Harness - Early Truck
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    Dominator EFI DBW Harness - Early Truck

    HOLLEY

    $285.95
    EFI Wiring Harness - Drive by Wire - Holley Dominator EFI - GM - Each
    HLY558-429
    $285.95
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    $285.95
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  • CAN Extension Harness 9in Length
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    CAN Extension Harness 9in Length

    HOLLEY

    $56.25
    CAN Wiring Harness - Extension Harness - 9 in Long - Black Rubber Coated - Each
    HLY558-428
    $56.25
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    $56.25
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  • Can Extension Harness 12ft
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    Can Extension Harness 12ft

    HOLLEY

    $84.29
    CAN Wiring Harness - Extension Harness - 12 ft Long - Black Rubber Coated - Each
    HLY558-426
    $84.29
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    $84.29
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  • CAN Extension Harness 8ft Length
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    CAN Extension Harness 8ft Length

    HOLLEY

    $70.19
    CAN Wiring Harness - Extension Harness - 8 ft Long - Black Rubber Coated - Each
    HLY558-425
    $70.19
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    $70.19
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  • Map Sensor Adapter LS1 & LS2 to LS3
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    Map Sensor Adapter LS1 & LS2 to LS3

    HOLLEY

    $42.87
    Wiring Harness Adapter - LS Main Harness to LS3 Map Sensor - Each
    HLY558-416
    $42.87
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    $42.87
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  • Drive By Wire Harness GM
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    Drive By Wire Harness GM

    HOLLEY

    $259.95
    EFI Wiring Harness - Drive by Wire - Holley Dominator EFI - GM - Each
    HLY558-406
    $259.95
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    $259.95
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  • Trans Wiring Harness GM 4L60/80E
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    Trans Wiring Harness GM 4L60/80E

    HOLLEY

    $318.95
    EFI Wiring Harness - Transmission - Holley Dominator EFI - GM 4L60E / 4L80E - Each
    HLY558-405
    $318.95
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    $318.95
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  • J2B Auxiliary Harness Kit
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    J2B Auxiliary Harness Kit

    HOLLEY

    $186.95
    EFI Wiring Harness - J2B Auxiliary Connector Harness - Holley Dominator EFI - Universal - Kit
    HLY558-402
    $186.95
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    $186.95
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  • Auxiliary Harness J2A Connector
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    Auxiliary Harness J2A Connector

    HOLLEY

    $242.95
    EFI Wiring Harness - J2A Auxiliary Connector Harness - Holley Dominator EFI - Universal - Kit
    HLY558-401
    $242.95
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    $242.95
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  • J1A/B Input/Output Connector
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    J1A/B Input/Output Connector

    HOLLEY

    $135.95
    EFI Wiring Harness - J1A/B - Holley Dominator EFI - Each
    HLY558-400
    $135.95
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    $135.95
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  • EFI Main Power Harness
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    EFI Main Power Harness

    HOLLEY

    $110.95
    EFI Wiring Harness - Main Power - Holley Dominator EFI - Each
    HLY558-308
    $110.95
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    $110.95
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  • Injector Harness - Ford USCAR/EV6 Style Injector
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    Injector Harness - Ford USCAR/EV6 Style Injector

    HOLLEY

    $207.95
    EFI Wiring Harness - EV6 / USCAR Style Injectors - Holley EFI - Small Block Ford - Each
    HLY558-212
    $207.95
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    $207.95
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  • EFI Injector Harness - Universal Unterminated
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    EFI Injector Harness - Universal Unterminated

    HOLLEY

    $239.95
    Fuel Injector Harness - Unterminated - Bosch Terminal Ends Included - Holley HP / Dominator EFI - Kit
    HLY558-204
    $239.95
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    $239.95
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  • Sniper 2 Main Harness w/Fuel Pump Relay
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    Sniper 2 Main Harness w/Fuel Pump Relay

    HOLLEY

    $225.95
    EFI Wiring Harness - Main Battery Harness - Fuel Pump Relay - Sniper 2 EFI - Power Distribution Module - Each
    HLY558-191
    $225.95
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    $225.95
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  • Sniper 2 Main Harness For PDM
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    Sniper 2 Main Harness For PDM

    HOLLEY

    $155.95
    EFI Wiring Harness - Main Battery Harness - Sniper 2 EFI - Power Distribution Module - Each
    HLY558-190
    $155.95
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    $155.95
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  • Sub-Harness Mopar Gen-3 Hemi VVT & SRV
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    Sub-Harness Mopar Gen-3 Hemi VVT & SRV

    HOLLEY

    $173.95
    EFI Wiring Harness - Terminator X - Variable Valve Timing - Mopar Gen III Hemi - Each
    HLY558-132
    $173.95
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    Qty in Cart: 0
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    $173.95
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  • Engine Main Harness Ford 5.0L/5.8L
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    Engine Main Harness Ford 5.0L/5.8L

    HOLLEY

    $584.95
    Engine Wiring Harness - Plug-and-Play - Small Block Ford - Each
    HLY558-128
    $584.95
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    $584.95
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