Holley 12-840 BILLET FP REG, ADJ 4.5-9 PSI 3/8 NPT

Holley Billet Fuel Pressure Regulator

SKU: HOL12-840

The HP Billet Fuel Pressure Regulator delivers precise 4.5–9 PSI control through durable 3/8-inch NPT ports and is designed for carbureted, non‑return fuel systems. Its black anodized billet construction is compatible with gasoline, diesel, and E85, offering both reliability and a sleek finish. 

Holley Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley. They are precision-machined from 6061

Holley Billet Fuel Pressure Regulator Features:

• Adjustable from 4.5-9 PSI for precise fuel pressure adjustment
• Constructed Of Billet Aluminum For Good Looks
• Used In Systems Where A Return Line Is Not Needed
• Use With Electric Or Mechanical Pumps
• One 3/8 in. NPT Inlet and Two 3/8 in. Npt Outlets
• 1/8 in. NPT Gauge Port
• Mounting Bracket Included

Application Summary:

Holley® Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley®. They are precision-machined from 6061-T6 billet aluminum for strength and durability. They feature a black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks. The Holley 12-840 fuel pressure regulator features 3/8in. NPT in/out ports.