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Holley Kits

Fuel Pressure Testing Port Tool

Fuel Pressure Testing Port for 5/16" SAE Style Fuel rails / Fuel Hose

Part # VK040072 Be the first to write a review
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Many late model fuel injected vehicles no longer have a Shrader valve on the fuel rail & this makes it tough to check the fuel pressure. This special adapter fits between the fuel supply hose and fuel rail & adds a Shrader valve that can be hooked up to the fuel pressure gauge for testing. The adapter can be configured in two different ways as a strait or 90 angle and has (2) 1/8" NPT ports that can be used for the Shrader valve or fuel pressure gauge. If you don't have a fuel pressure gauge that connects to the Shrader valve, you can use fuel pressure gauge part # 100187ERL.


  • Ideal for Checking Fuel Pressure On Late Model Vehicles That Don't Have A Test Port
  • Billet Aluminum 6061-T6
  • Black Anodized Finish
  • (3) 1/8" NPT Outlets
  • Includes (2) 1/8" NPT Plug, Shrader Valve, and Fuel Line Adapter
  • The Adapters & Plugs Can Be Installed in Any of the (3) 1/8" NPT Ports
  • This Adapter Can Also Be Used to Add Fuel Pressure Gauge or Schrader Valve on Late Model Vehicles
  • Fits Fuel Rails w/ 5/16" Fuel Hose & SAE Connection
Adapter TypeQuick Connect
BrandHolley Kits
Emission Code6
FinishAnodized Black
Inlet5/16 inch
Inlet Qty1
Material6061 Aluminum
Outlet1/8NPT Female
Product TypeFuel Pressure Test Port
Tube Size5/16"
Part NumberVK040072

Vehicle emissions regulations are not applicable to this item.

The Shrader valve should be removed after testing and plugged to prevent a potential fuel leak.

    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.