# Service bulletin 1HDM5V2A05

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.

- Type: Service bulletin
- NHTSA id: 10139399
- Published by NHTSA: 2018\-06\-04
- Manufacturer's number: 1HDM5V2A05
- Manufacturer's date: 2018\-04\-27
- NHTSA component: POWER TRAIN

## NHTSA's summary

TECH ARTICLE TA0023: TA0023: Crankshaft Rod Bearing. Purpose: Technicians have been falsely identifying connecting rod bearings as failed due to a perception of resistance as the rods are rotated. The clearance of the Twin Cam and Milwaukee\-Eight® crank pin bearings are maintained to a very tight range. This optimizes performance and maintains low mechanical noise in operation. The connecting rod bore can also distort slightly in operation due to stress relaxation. As a result, bearing clearance decreases due to the contact zone broadening and the load being distributed over more rollers. The combination of a bore being slightly out of round and reduced bearing clearance can result in varying degrees of resistance through the range of motion. Axial clearance is also tightly controlled for proper alignment. For these reasons, zones of resistance can be found when the connecting rods are rotated by hand through their range of motion. Resistance during rod motion, by itself, is not an indication of a performance or durability concern.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10139399-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10139399-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2012 HARLEY\-DAVIDSON FLD
- 2014 to 2016 HARLEY\-DAVIDSON FLD
- 2017 to 2018 HARLEY\-DAVIDSON FLDE
- 1999 to 2000 HARLEY\-DAVIDSON FLHP
- 2007 to 2018 HARLEY\-DAVIDSON FLHP
- 1999 to 2018 HARLEY\-DAVIDSON FLHR
- 2007 to 2011 HARLEY\-DAVIDSON FLHRC
- 2013 to 2016 HARLEY\-DAVIDSON FLHRC
- 2017 HARLEY\-DAVIDSON FLHRXS
- 2007 to 2011 HARLEY\-DAVIDSON FLHTCU
- 2013 to 2018 HARLEY\-DAVIDSON FLHTCU
- 2012 HARLEY\-DAVIDSON FLHTCU103
- 2014 to 2018 HARLEY\-DAVIDSON FLHTCUL
- 2015 HARLEY\-DAVIDSON FLHTCUL TC
- 2017 HARLEY\-DAVIDSON FLHTCUTC
- 2009 to 2018 HARLEY\-DAVIDSON FLHTCUTG
- 2009 to 2018 HARLEY\-DAVIDSON FLHTK
- 2015 to 2018 HARLEY\-DAVIDSON FLHTKL
- 2014 to 2018 HARLEY\-DAVIDSON FLHTKSE
- 2007 to 2018 HARLEY\-DAVIDSON FLHTP
- 2006 to 2018 HARLEY\-DAVIDSON FLHX
- 2014 to 2018 HARLEY\-DAVIDSON FLHXS
- 2010 HARLEY\-DAVIDSON FLHXSE
- 2014 to 2018 HARLEY\-DAVIDSON FLHXSE
- 2015 to 2018 HARLEY\-DAVIDSON FLRT
- 2013 HARLEY\-DAVIDSON FLS
- 2017 HARLEY\-DAVIDSON FLS
- 2018 HARLEY\-DAVIDSON FLSB
- 2018 HARLEY\-DAVIDSON FLSL
- 2016 to 2017 HARLEY\-DAVIDSON FLSS
- 2018 HARLEY\-DAVIDSON FLSTB
- 1999 to 2017 HARLEY\-DAVIDSON FLSTC
- 1999 to 2011 HARLEY\-DAVIDSON FLSTF
- 2016 to 2017 HARLEY\-DAVIDSON FLSTF
- 2016 to 2017 HARLEY\-DAVIDSON FLSTFBS
- 2005 to 2018 HARLEY\-DAVIDSON FLSTN
- 2010 to 2011 HARLEY\-DAVIDSON FLTRU
- 2013 HARLEY\-DAVIDSON FLTRU
- 2016 to 2017 HARLEY\-DAVIDSON FLTRU
- 2011 HARLEY\-DAVIDSON FLTRUSE
- 2015 to 2018 HARLEY\-DAVIDSON FLTRUSE
- 2010 to 2011 HARLEY\-DAVIDSON FLTRX
- 2014 to 2018 HARLEY\-DAVIDSON FLTRX
- 2015 to 2018 HARLEY\-DAVIDSON FLTRXS
- 2007 to 2018 HARLEY\-DAVIDSON FXDB
- 2016 HARLEY\-DAVIDSON FXDBC 103
- 2016 to 2017 HARLEY\-DAVIDSON FXDBP 103
- 2008 to 2017 HARLEY\-DAVIDSON FXDF
- 1999 to 2017 HARLEY\-DAVIDSON FXDL
- 2016 to 2017 HARLEY\-DAVIDSON FXDLS
- 1999 to 2005 HARLEY\-DAVIDSON FXDWG
- 2007 to 2008 HARLEY\-DAVIDSON FXDWG
- 2010 to 2011 HARLEY\-DAVIDSON FXDWG
- 2013 to 2014 HARLEY\-DAVIDSON FXDWG
- 2016 to 2017 HARLEY\-DAVIDSON FXDWG
- 2016 to 2017 HARLEY\-DAVIDSON FXSE
- 1999 HARLEY\-DAVIDSON XL1200C
- 2000 HARLEY\-DAVIDSON XL1200C
- 2001 HARLEY\-DAVIDSON XL1200C
- 2002 to 2010 HARLEY\-DAVIDSON XL1200C
- 2014 HARLEY\-DAVIDSON XL1200C
- 2011 HARLEY\-DAVIDSON XL1200CP
- 2015 to 2016 HARLEY\-DAVIDSON XL1200T
- 2012 HARLEY\-DAVIDSON XL1200V
- 2010 to 2012 HARLEY\-DAVIDSON XL1200X
- 2015 HARLEY\-DAVIDSON XL1200X
- 2005 to 2013 HARLEY\-DAVIDSON XL883L
- 2009 to 2012 HARLEY\-DAVIDSON XL883N
- 2017 to 2018 HARLEY\-DAVIDSON XL883N

JSON: [/v1/bulletins/10139399](/v1/bulletins/10139399)

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