9999 CUMMINS QST TSBs (3)

Bulletin:: 98T88
Component:: 062000 engine and engine cooling:cooling system
Summary:: Subject on qst30 water pump improvements. *yc
Bulletin:: 98T811
Component:: 061000 engine and engine cooling:engine
Summary:: Updated procedures for the inspection of the heat exchanger zinc plug. *yc
Bulletin:: C0819
Component:: 061000 engine and engine cooling:engine
Summary:: Cummins: orion voltage regulator campaign. addressing a fuel lift pump voltage regulator issue. authorizes repair shop to remove cummins voltage regulator from wiring harness and install separate 12-vdc power source for orion bus applica