FueLab FPR Fuel Pressure Regulator - FPR for EFI Fuel Injection 51501 / 51502 / 52501

Fuelab Adjustable FPR Fuel Pressure Regulator
for EFI Fuel Injected Engines

FUELAB 515/525 Series Fuel Pressure Regulators are designed with performance and flexibility in mind. They accept port style and non-port style union fittings without interference. Several configurations are available, supporting carbureted applications as low as 1 PSID to fuel injected applications up to 125 PSID. The 515 Series Fuel Pressure Regulator has a -6AN return port located on the bottom. The 525 Series has its return port in-line with the inlet port (not on the bottom) which allows for easy installation in extremely tight locations and in-line applications.

Fine thread pitch on adjustment hardware for precise pressure adjustment
Assortment of pressure ranges, springs are universal across the entire product line
Hardened precision steel ball pressed-into spring guide maintains consistent spring positioning for repeatable pressure settings
Accepts non-port style union fittings without any interference
Lightweight fluorosilicone diaphragm assembly reduces hydraulic pressure fluctuations
1/8" NPT port accommodates wide range of plumbing options Strong barbed fitting included
AN or military o-ring style fittings provide reliable leak-free performance
-6AN return port is located on the bottom
(525 series return port is in-line with inlet)
Please Note: Fuel fittings are not included (sold separately).

FEATURES:
. Gasoline, diesel, methanol, and ethanol fuel compatible
. Billet Aluminum with anodize per military MIL-A-8625, Type II
. Fine thread pitch for precise pressure adjustment
. Versatile mounting bracket and stainless steel hardware
. 1/8" NPT gauge port with plug for external pressure gauge
. 1/8" NPT pressure reference port with barbed fitting
. Fuel fittings sold separately
. Backed by a 2-year limited warranty

525 Series - Inline FPR (no bottom return port)

Color Options

NOTE: These are HIGH-PRESSURE regulators (25-90 PSI) and will ONLY work on electronic fuel injected (EFI) engines.