6.5L GM Diesel OPS Bypass/Fuel Pump Harness Upgrade RT-151501 An instruction brochure indicating this

An instruction brochure indicating this procedure is included with connector plugs for 1999 to 2003 model years

94 to 97 trucks require a different connector than 99-03 trucks

5L GM Diesels

extended fuel pump service life

Regardless of how simple the part may seem

6.5L GM Diesel OPS Bypass/Fuel Pump Harness Upgrade RT-151501 An instruction brochure indicating thisFuel Pump Relay Wiring Harness for All 6. 5L GM Diesels Tired of OPS failures and the related headaches? Our fuel pump relay harness upgrade addresses the shortcomings of the oil pressure switch and the factory fuel pump wiring by reducing the load across the OPS from 4 amps to 150 milliamps in addition to carrying the actual fuel pump load through a high current relay. Furthermore, the system supplies power to the fuel pump through hefty 12 gauge