Holley EFI Filter Regulator 3/8" NPT

Filter Regulator ASY - 3/8" NPT , 175 GPH, 10 Micron All aluminum housing is both clear and black anodized for corrosion protection. Internal Regulator is preset at 59.5 psi #12-875 has 3/8" NPT ports. #12-876 has -8AN ports.

PART# 12-875

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When converting your fuel system to a return style EFI setup, the biggest challenge can be plumbing the fuel lines. Holley continues to be the leader in fuel system development to make your life easier! The new Holley EFI Filter Regulator assembly simplifies your installation by combining the fuel filter and regulator in one assembly that can be mounted in the rear of the vehicle. Thus making your return line much shorter. The aluminum assembly contains a 175 GPH 10 Micron filter and a regulator preset at 59.5 psi. The filter regulator comes in 3/8" NPT or 8 AN port sizes to match most EFI fuel systems. Add billet mounting clamps; 162-574 and 162-574S


  • Designed to help minimize the fuel line plumbing needed when installing an electronic fuel injection conversion


BrandHolley EFI
Emission Code5
Fuel SystemEFI
Product TypeRegulator
Thread3/8" NPT
WarrantyLimited 90 Day
Part Number12-875


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.

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Warranty Information

Limited 90 Day: See Details
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