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Service bulletin TSB100025-092116

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10085687
Published by NHTSA2016-12-07
Manufacturer's numberTSB100025-092116
Manufacturer's date2016-09-21
NHTSA componentFUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ENGINE; FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP

NHTSA's summary

THIS TECHNICAL SERVICE BULLETIN INFORMS THE FIELD OF AN ISSUE CAUSING FUEL PUMP LEAKS ON BOSCH COMMON RAIL FUEL SYSTEMS. HIGH FUEL INLET AND FUEL DRAIN LINE RESTRICTIONS CAN LEAD TO AN EXTERNAL OR INTERNAL FUEL LEAK FROM THE FUEL PUMP. IT IS IMPORTANT TO INSPECT THE FUEL SUPPLY AND FUEL DRAIN LINE FOR SIGNS OF RESTRICTIONS IF AN ENGINE HAS A FUEL LEAK FROM THE FUEL PUMP WEEP HOLE.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Fuel system, Fuel pump

Vehicles listed
CUMMINS B6.7
CUMMINS ISB59
CUMMINS ISB6.7

Listing a model year does not mean every vehicle of it is concerned: the document says which.