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Service bulletin M1510

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 id10173463
Published by NHTSA2020-04-06
Manufacturer's numberM1510
Manufacturer's date2020-03-19
NHTSA componentPOWER TRAIN; FUEL SYSTEM, OTHER:FUEL FILTER

NHTSA's summary

SERVICE BULLETIN M1510: MILWAUKEE-EIGHT ENGINE - NEW OIL FILTER. REVISION. PURPOSE: To inform dealers of an improved oil filter for the Milwaukee-Eight® (MKE-8) engine. The new oil filter uses the same synthetic 5-micron media as the current filter, however, the new oil filter effective media surface area was increased by 25%. The increased media supports the higher oil flow rate of MKE-8 engines. Fitment, clearance and performance testing has only been performed on MKE-8 vehicles. All Twin Cam vehicles continue to use the current oil filter.

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

Fuel system, Transmission and driveline, Fuel filter

Vehicles listed
HARLEY-DAVIDSON FLDE2018 to 2020
HARLEY-DAVIDSON FLFB2018 to 2019
HARLEY-DAVIDSON FLFBS2018 to 2020
HARLEY-DAVIDSON FLFBS ANV2018
HARLEY-DAVIDSON FLFBS ANX2018
HARLEY-DAVIDSON FLFBSANV2020
HARLEY-DAVIDSON FLHC2018 to 2020
HARLEY-DAVIDSON FLHCS2018 to 2020
HARLEY-DAVIDSON FLHP2017 to 2018
HARLEY-DAVIDSON FLHP2020
HARLEY-DAVIDSON FLHR2017 to 2020
HARLEY-DAVIDSON FLHR / ROAD KING2017
HARLEY-DAVIDSON FLHRXS2017 to 2020
HARLEY-DAVIDSON FLHT2019 to 2020
HARLEY-DAVIDSON FLHTCU2017 to 2019
HARLEY-DAVIDSON FLHTCUL2017 to 2019
HARLEY-DAVIDSON FLHTCUTC2017
HARLEY-DAVIDSON FLHTCUTG2017 to 2020
HARLEY-DAVIDSON FLHTCUTGSE2019 to 2020
HARLEY-DAVIDSON FLHTK2017 to 2020
HARLEY-DAVIDSON FLHTK ANV2017 to 2019
HARLEY-DAVIDSON FLHTK SHRINE2020
HARLEY-DAVIDSON FLHTKL2017 to 2019
HARLEY-DAVIDSON FLHTKSE2017 to 2020
HARLEY-DAVIDSON FLHTKSE ANV2017 to 2019
HARLEY-DAVIDSON FLHTP2017 to 2020
HARLEY-DAVIDSON FLHX2017 to 2020
HARLEY-DAVIDSON FLHXS2017 to 2020
HARLEY-DAVIDSON FLHXSE2017 to 2020
HARLEY-DAVIDSON FLRT2017 to 2020
HARLEY-DAVIDSON FLSB2018 to 2020
HARLEY-DAVIDSON FLSL2018 to 2020
HARLEY-DAVIDSON FLSTB2018
HARLEY-DAVIDSON FLSTN2018
HARLEY-DAVIDSON FLTRK2020
HARLEY-DAVIDSON FLTRU2017 to 2019
HARLEY-DAVIDSON FLTRUSE2017 to 2019
HARLEY-DAVIDSON FLTRX2017 to 2020
HARLEY-DAVIDSON FLTRXS2017 to 2020
HARLEY-DAVIDSON FLTRXSE2018 to 2020
HARLEY-DAVIDSON FXBB2018 to 2020
HARLEY-DAVIDSON FXBR2018 to 2019
HARLEY-DAVIDSON FXBRS2018 to 2020
HARLEY-DAVIDSON FXBRS ANX2018
HARLEY-DAVIDSON FXDB2018
HARLEY-DAVIDSON FXDRS2019 to 2020
HARLEY-DAVIDSON FXFB2019
HARLEY-DAVIDSON FXFBS2018 to 2020
HARLEY-DAVIDSON FXLR2018 to 2020
HARLEY-DAVIDSON FXLRS2020
HARLEY-DAVIDSON FXST2020
HARLEY-DAVIDSON TOURING2017 to 2019
HARLEY-DAVIDSON TRIKE2017 to 2018

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