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Service bulletin 1HD-D8K3L-04

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 id10109610
Published by NHTSA2017-08-02
Manufacturer's number1HD-D8K3L-04
Manufacturer's date2017-03-24
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)

NHTSA's summary

Service Bulletin M-1443: MILWAUKEE-EIGHT CRANKCASE SEALANT CHANGE. This service bulletin informs dealers that, effective immediately, CRANKCASE SEALANT (Part No. 11100202) will supersede to HARLEY-DAVIDSON HIGH PERFORMANCE SEALANT - GRAY (99650-02). Testing has concluded which determines that Part No. 99650-02 is now the recommended crankcase sealant for servicing Milwaukee-Eight engines. This change was initiated to address the product availability, compliance and inventory shelf life issues that we are experiencing with CRANKCASE SEALANT (Part No. 11100202).

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, Equipment and accessories, Exhaust and emissions, Crankcase ventilation (PCV)

Vehicles listed
HARLEY-DAVIDSON HARLEY DAVIDSON

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