WenmarOpen by Wenmar Pro

Service bulletin PAB1100

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 id10188364
Published by NHTSA2021-03-06
Manufacturer's numberPAB1100
Manufacturer's date2021-02-03
NHTSA componentPOWER TRAIN; ENGINE AND ENGINE COOLING

NHTSA's summary

GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1100: TWIN CAM LONGBLOCK & WARRANTY ENGINE - PROGRAM UPDATES. PURPOSE: To inform dealers of certain twin cam longblock and twin cam warranty engines are no longer supported. Instead, shortblocks should be ordered where applicable. Certain Harley-Davidson twin cam longblock and twin cam warranty engines are going obsolete. Some part numbers have a shortblock available for replacement. Reference the parts catalog for model and year to confirm that the shortblock part number and installation kit are still available.

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, Transmission and driveline

Vehicles listed
HARLEY-DAVIDSON HARLEY-DAVIDSON

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