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Service bulletin ATC1943B

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 id10136544
Published by NHTSA2018-05-14
Manufacturer's numberATC1943B
Manufacturer's date2018-04-03
NHTSA componentFUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP

NHTSA's summary

This Acount Team Coverage (ATC) is being issued to upgrade certain ISX15 CM2350 High Pressure Fuel Pump Tappets. This ATC provides authorization for certified repair locations to replace the brass roller pin tappets in the high pressure fuel pump with new diamond-like coated roller pin tappets for RYDER. This is an update to a previously submitted communication.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system, Fuel pump

Vehicles listed
CUMMINS ISX15

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