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Vehicle Info NeededHOLLEYPART NUMBER: 510-570-103
570-103 EFI Main Harness Wiring Connector Kit
$16795
Ships on 09/09/2026
Lowest Price GuaranteeEFI Harness Connector Kits
- EFI Main Harness Wiring Connector Kit
- GM LSX Engine
- Includes Pins, Seals & TPA's for Every Sensor
Great for building a custom harness with OEM quality connectors, Holley EFI Main Harness Wiring Connector Kit for GM LS engines works great with flying lead harness #510-558-126.
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 TypeFuel Injection Harness Connector
BrandHOLLEY
Package Height5.0
Package Width6.5
Package Length10.5
Weight0.68 PG
Part CategoryPerformance Parts
Package Qty1
Package TypeEA
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