558-134 Extended Length Main Harness for GM LS2, LS3, LS7 Engines w/Holley HP or Dominator EFI (58X Crank Reluctor)

Name: 558-134 Extended Length Main Harness for GM LS2, LS3, LS7 Engines w/Holley HP or Dominator EFI (58X Crank Reluctor)
Brand: HOLLEY
SKU: 510-558-134
Price: 715.95 USD
Availability: InStock

^$715⁹⁵

1 left in stock

Ships on Sep 14, 2026

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LS2/LS3/LS7

Extended Length Main Engine Harness

Fits 2006-2017 GM LS2, LS3, LS7 Engines

Also Fits LS Variants L76, L92, L98

For Holley HP or Dominator EFI

58X Crankshaft Reluctor

4X Camshaft Sensor

Length: 94 in.

Plug-and-Play

Holley 558-134 Extended Length Main Engine Harness Features:

Extended 22 Inches Over the Holley 558-103 Harness to Enable ECU Mounting Inside Vehicle or a More Secure Location
Plug-and-Play w/Holley Dominator, HP, Terminator X, and Terminator X Max Engine Management Systems (ECUs)
Compatible with GM LS-Based Engines Using 58X Crankshaft and 4X Camshaft Sensors

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Part TypeWiring Harness

BrandHOLLEY

Package Height4.5

Package Width14.4

Package Length15.1

Weight5.68 PG

Wiring Harness Length94 in. (2387.6 mm)

Terminal TypeTerminated

QuantitySold individually

Engine Management System Component TypeWiring harness

Vendor Part Number558-134