Holley Billet Fuel PressureRegulators are part of a complete line of fuel system products from Holley. They areprecision machined from 6061-T6 billet aluminium 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 3/8" NPT in/out ports.

FEATURES:

• Adjustable from 4.5-9 psi for precise fuel pressure adjustments
• Constructed of billet aluminium with a black anodized base and clear anodize top for good looks
• Used in systems where a return line is not needed
• Use with electric or mechanical pumps
• One 3/8" NPT inlet and two 3/8" NPT outlets
• 1/8" NPT gaugeport
• Comparable and interchangeable with popular Holley® 12-803 regulator
• Mounting bracket included