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Service bulletin TSB-TL-28

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 id10043364
Published by NHTSA2012-03-20
Manufacturer's numberTSB-TL-28
Manufacturer's date2012-01-15
NHTSA componentEQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

UD TRUCKS: INFORMATION IS BEING PROVIDED REGARDING THE REPLACEMENT/INSTALLATION OF AN INJECTOR NOZZLE SLEEVE FOR THE ENGINE. NO MODEL OR MODEL YEARS LISTED. *PE

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, Equipment and accessories

Vehicles listed
UD UD18002011
UD UD20002011
UD UD23002011
UD UD26002011
UD UD33002011

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

Other bulletins for the same vehicles and component
SB-258-0342012-12-05. Service bulletin. UD TRUCKS: TO REDUCE THE HYDROCARBON AND THE ENGINE SOOT BUILD UP, AN ENGINE HARDWARE AND SOFTWARE HAS BEEN UPDATED AND INTRODUCED. MODELS 2011-2013 UD1800, 2000, 2300, 2600, 3300. *PE UPDATED 3/26/13. *PE
TSB-EN-442012-03-20. Service bulletin. UD TRUCKS: PROCEDURE INFORMATION REGARDING DPF ASSEMBLY OR REPLACEMENT OF DPF FILTER ON CERTAIN MODEL YEAR TRUCK ENGINE, IF DIAGNOSTICS INDICATE SIGNS OF CRACKING, VISUAL DAMAGE OR PRESENCE OF SOOT ACCUMULATION. *PE