This universal Radium Fuel Pressure Regulator (FPR) is built around the common OEM Bosch regulator tops found in many Audi/VW (and other) applications. The compact billet aluminum housing provides a convenient package for plumbing and mounting. The regulator body is held in the housing with a stainless steel snap ring and can easily be removed for cleaning or replacement using snap-ring pliers.

The Bosch regulator tops are vacuum referenced with a 1:1 ratio. The two main high-pressure ports are threaded for 6AN ORB. There is also a 1/8 NPT female port for a gauge, pressure transducer, etc. Each regulator body is laser etched and anodized for a superior finish.

Radium offers two different GENUINE Bosch regulator tops: 3.0 Bar (43.5 psi) static and 4.0 Bar (58.2 psi) static.

NOTE: The exact min, static, and max pressures are influenced by the flow rate of the fuel pump being used. These FPRs are tested using a common Walbro 255lph pump. If a higher flowing pump is used, the minimum pressure ratings may be higher than advertised. For applications with more pump flow, consider a HIGH FLOW FUEL PRESSURE REGULATOR.

NOTE: The 3 and 4 Bar Bosch regulator tops are NOT adjustable.

**This product is not recommended for fuel pumps with more than 255 LPH (at 3 Bar) rated flow**

INCLUDES

-Billet 6061 Aluminum Housing
-6AN Male Adapter Fitting
-6AN ORB Plug Fitting
-1/8-27 NPT Port Plug
-Integrated -6AN Male Return Port
-Stainless Steel Mounting Hardware
-Stainless Steel Snap Retaining Ring
-Anodized Aluminum Mounting Bracket

OPTIONS

20-0114:

If a regulator top is not needed (already have one from another source), select Radium 20-0014. This option includes everything needed with the exception of the regulator top, as shown below.

20-0010-00 and 20-0010-01:
These come assembled with the Bosch regulator unit installed in the housing, as shown below.

Fuel Pressure Gauge:

Radium also offers an optional fuel pressure gauge (shown below). This secures to the front 1/8″-27 NPT port of the fuel pressure regulator housing. Linked HERE.