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Service bulletin M1513

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 id10232443
Published by NHTSA2023-03-04
Manufacturer's numberM1513
Manufacturer's date2023-02-01
NHTSA componentENGINE AND ENGINE COOLING; POWER TRAIN

NHTSA's summary

SERVICE BULLETIN M1513: DIAGNOSTICS AND REPAIR - LEAKS, WEEPS AND SEEPS. PURPOSE: REVISION. To inform dealers on how to diagnose leaking seals or gaskets. This can sometimes be difficult, unless oil is obviously pouring out of the seal. Usually, a seal will weep or leak at a very slow rate. Revision: [Verbal Edits] Updated: Diagnosing the Source, Seals, Residual Assembly Lubricant, Required Dealer Action. [Removed sections] Updated: Common Types of Leaks, Inside Diameter, Outside Diameter.

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.