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Service bulletin SB939

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 id11016284
Published by NHTSA2025-04-02
Manufacturer's numberSB939
Manufacturer's date2024-06-19
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

A change to the heater naming convention will match Espar to coincide with the upcoming launch of the new “AX3” series of heaters for TriPac 3. This bulletin will illustrate the installation and diagnostic setup processes. An updated priming harness (P/N 2043232) and priming harness jumper (P/N 2043233) is available in Aftermarket.

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.

Vehicles listed
THERMO KING TRIPAC-3

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