Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129
Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129
Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129
Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129

Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129

Holley EFI
HOL558-129
Heads up — this is a Special Order item. We don't carry it on the shelf, but we can bring it in for you! Lead times vary and can be 10 weeks or more depending on the manufacturer. Give us a call or send us a message so we can check current availability and walk you through your options before you commit to an order.
$856.73
$824.53
$856.73
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Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129

Holley EFI

Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129

$824.53 $856.73
Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129
Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129
Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129
Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129

Holley EFI

Holley EFI Engine Control Module (ECM) Wiring Harness PN. 558-129

$824.53 $856.73
Description

Holley EFI Engine Control Module (ECM) Wiring Harness

PN. 558-129

SNEFI ECMEWH

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Gen V LT Engine Main

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MAIN HARNESS GM GEN V LT

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terminator; terminator x; terminator x max; x max; term x; term x max; gen v; lt; harness; main harness;

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Holley EFI Gen V LT Engine Main Harness

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For use with Terminator X and X Max

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This harness is designed for use with Terminator X and X Max ECU's Only.

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Used on Terminator X and Terminator X Max

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Main harness

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GM Gen V LT engines

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Wires in protective loom

Fitment
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