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Weatherpak to GT (Stainless Steel) MAP Adapter Harness

PART# 558-466

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These two new MAP sensor adapters from Holley EFI allow you to quickly add a stainless steel MAP sensor to your existing installation. Holley part #558-466 adapts harnesses with a (MPFI) Weatherpack 3-pin connector to the 3-pin Delphi GT connector, commonly found on aftermarket stainless steel MAP sensors, such as the Holley 5-BAR MAP sensor, part #554-108. Holley part # 558-467 adapts harnesses with a Delphi M/P 150 3-pin connector, commonly found on LS engine harnesses, to the 3-pin Delphi GT connector


  • Genuine OEM (original equipment manufacturer) Connectors
  • Techflex F6 loomed harness provides protection from engine bay dirt and grime, while matching your Holley EFI harness for a clean installation
  • Plug and play pre-termination allows you to quickly convert any installation to an aftermarket MAP sensor


BrandHolley EFI
Emission Code4
Product TypeMAP Sensor
Part Number558-466



This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

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