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Service bulletin ATC2711

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 id11018193
Published by NHTSA2025-05-08
Manufacturer's numberATC2711
Manufacturer's date2025-04-04
NHTSA componentENGINE

NHTSA's summary

This ATC is being issued to address interference between rocker lever cover and injectors due to residual material on certain X12 certified engines. The residual material on rocker lever cover may lead to progressive damage to injectors or injector harnesses that can cause fault codes and low engine performance. This ATC enables authorized repair locations to remove residual material, commonly known as nubs, from the rocker lever cover that may resolve the condition described above. 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

Engine

Vehicles listed
CUMMINS X12

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