Weldon A2040-281-A-120 Bypass Fuel Pressure Regulator

Weldon A2040-281-A-120 Bypass Fuel Pressure Regulator

High-flow return-style fuel-pressure regulator for compatible performance fuel systems, including sandcars, sandrails, race vehicles, and custom off-road builds.

Product at a Glance

Fuel-System Compatibility

Return-style regulator for compatible performance fuel systems. Verify pump flow, target base pressure, boost-reference requirements, fuel type, port sizing, and plumbing layout before ordering.

Key Specifications

• Return-style regulator
• 1:1 boost/vacuum pressure-rise ratio
• 0–110 psi adjustment range
• .281-inch bypass orifice
• Flow capability listed up to 6 gpm
• Two -10 AN O-ring pressure ports
• One -8 AN O-ring return port
• 1/8-inch NPT gauge port
• 1/8-inch NPT manifold-pressure reference port
• Billet aluminum construction with anodized finish
• Fluorosilicone diaphragm
• Rebuildable
• Compatible with gasoline, methanol, diesel, ethanol, and most racing fuels per the original product specification
• Fittings and mounting bracket are not included