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Mr. Gasket Y-Block

Aluminum fuel block, 1/8 Inch NPT Tapped Hole for Fuel Pressure Gauge

PART# 2961BL

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This Mr. Gasket aluminum fuel block, Y-block, or junction block, is most commonly used when upgrading to multiple carburetors. It allows you to take a main feed line and T it out to two other outlets to those dual carbs. In addition, it has a 1/8 inch diameter port for a fuel pressure gauge. It could also be used for oil or water as well. Brass hose barb fittings and hose clamps are included, as are two screws and nuts to help install.


  • Black Anodized Aluminum with Logo
  • Ideal for Multiple Carburetors
  • 1/8" NPT Gauge Port
  • (1) 1/2" NPT Inlet
  • (2) 3/8" NPT Outlets


Adapter NPT Size ( A )1/2 NPT FEMALE
Adapter NPT Size ( B )3/8 NPT MALE
Adapter NPT Size ( C )1/8 NPT FEMALE
BrandMr. Gasket
Emission Code5
FinishAnodized Black
Material6061 Aluminum
Product TypeClassic Y-Block
WarrantyLimited 90 Day
Part Number2961BL



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Note: For a positive thread seal use thread sealing tape part number 2842G on the threads.

Warranty Information

Limited 90 Day: See Details
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