Description The Fuel Pump Relay Bypass Master Kit simplifies fuel system diagnostics by allowing you to actuate the fuel pump independent of key-on systems. This enables fuel pressure testing without starting the engine—perfect for quick and accurate troubleshooting. Compatible with most domestic, Japanese, Korean, and German vehicles, the kit plugs directly into the fuse box in place of standard relays. It gives technicians direct control of the fuel pump circuit, streamlining diagnostics and improving accuracy. For advanced electrical testing, an alternate version of this kit is available with loop-style relays (9038A)—ideal for use with amp clamps when measuring current draw. Whether you’re a professional or enthusiast, this kit is essential for electrical and fuel system diagnostics. Features and Benefits: Actuate fuel pumps with the engine off for pressure testing Bypass relays to control circuits independent of key-on systems Plug-in relay replacements – no modifications needed Choose the right kit for your application: spade, rectangular, master, or amp-loop Amp-loop version (9038A) allows current monitoring with standard probes Includes: • Small Spade Relay – Domestic, Korean, Japanese 2000 (#9036-1) (10A/20A) • Medium Spade Relay – Domestic, Japanese 1970–2009 (#9036-2) (10A/20A) • Large Spade Relay – VW 1999–2005, Audi 2004–2006 (#9036-3) (20A/30A) • Square Relay – BMW 1995–2006 (#9037-2) • Small Rectangular Relay – GM, Chrysler, and Japanese 1985–2009 (#9037-1) • Large Rectangular Relay – GM, Chrysler, and Japanese 1995–2007 (#9037-3) WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
