Made in USA
558-103 Main Harness for GM LS2, LS3, LS7 Engines w/Holley HP or Dominator EFI (58X Crank Reluctor)
InfoVehicle Info Needed
HOLLEYPART NUMBER: 510-558-103

558-103 Main Harness for GM LS2, LS3, LS7 Engines w/Holley HP or Dominator EFI (58X Crank Reluctor)

$67595
3 left in stock
ShippingShips Today
Lowest PriceLowest Price Guarantee

LS2/LS3/LS7
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 72 in.
  • Plug-and-Play


  • LS2 Main Harness

    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 Height4.4
    Package Width14.5
    Package Length15.1
    Weight4.8 PG
    Part CategoryPerformance Parts
    Metering StyleSpeed density
    Wiring Harness Length72 in (1828.8 mm)
    Terminal TypeTerminated
    QuantitySold individually
    Injection StyleSequential multi-port
    Engine Management System Component TypeWiring harness
    Part FitmentSemi Universal
    Efi System Kit NumberHLY-550-603
    Vendor Part Number558-103
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

    ITEM YOU MAY ALSO CONSIDER

    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!