M8 Oil Pumps

[FSG]

Trying to piece together M8 Oil Pump information, it seems a bit messy and they have reverted to the older Relief Valve. 

Hhhhmmmm

62400121   OIL PUMP ASSY, OIL COOLED M8

OIL PUMP ASSEMBLY, with 601 (ROLL PIN), 8873 (BALL), 26210-99 (SPRING, relief valve), 62400052 (GEROTOR ASSEMBLY), 62400132 (RELIEF VALVE, oil pump bypass [Early model year - Used with 62400121 and 62400124]) and body (AIR-COOLED) Also order 62400126 (GEROTOR ASSEMBLY, feed (AIR-COOLED)) (Early model year) (Use 62400143)


62400143   OIL PUMP ASSEMBLY, with 601, 8873, 26210-99, 26400-82B, 62400052 and body (AIR-COOLED) Also order 62400126 (Late model year) (Replaces 62400121)



62400124   OIL PUMP ASSY, WATER COOLED M8

OIL PUMP ASSEMBLY, with 601 (ROLL PIN), 8873 (BALL), 26210-99 (SPRING, relief valve), 62400052 (GEROTOR ASSEMBLY), 62400132 (RELIEF VALVE, oil pump bypass [Early model year - Used with 62400121 and 62400124]) and body (TWIN-COOLED™) Also order 62400055 (GEROTOR ASSEMBLY, feed (TWIN-COOLED™)) (Early model year) (Use 62400146)


62400146   OIL PUMP ASSEMBLY, with 601, 8873, 26210-99, 26400-82B, 62400052 and body (TWIN-COOLED™) Also order 62400055 (Late model year) (Replaces 62400124)



62400132   RELIEF VALVE, oil pump bypass (Early model year - Used with 62400121 and 62400124)

26400-82B   RELIEF VALVE, oil pump bypass (Late model year - Used with 62400143 and 62400146)



62400125   COVER, oil pump assembly

[harley_cruiser]

Humm, they are using oil pumps from 82; 99?
You would think they would use the higher volume pump from 06.

[hdrider47]

Does anyone know when in the production year they updated the oil pump parts?  My Ultra was built in March 2017.  Thanks.

[motorhogman]

Humm, they are using oil pumps from 82; 99?
You would think they would use the higher volume pump from 06.

Some of those PN's are listed for my 2001 in OEM parts manual

[FSG]

62400121    OIL PUMP ASSY,OIL COOLED M8

replaced by 62400143 

Now have 62400178    a result of SB M-1450


==============================


62400124    OIL PUMP ASSY,WATER COOLED M8

replaced by 62400146

Now have 62400182    a result of SB M-1450


==============================

[HD/Wrench]

  thanks for that

[FSG]

62400178   OIL PUMP ASSY SUB-CMPNT,CSTG,OIL   MRRP  72.46

62400182   OIL PUMP ASSY SUB-CMPNT,CSTG,WATER   MRRP  72.46

[SoZo]

62400178   OIL PUMP ASSY SUB-CMPNT,CSTG,OIL   MRRP  72.46

62400182   OIL PUMP ASSY SUB-CMPNT,CSTG,WATER   MRRP  72.46

Just a check... are these the the latest and final Oil Pumps and are they working ?

[happyman]

62400178   OIL PUMP ASSY SUB-CMPNT,CSTG,OIL   MRRP  72.46

62400182   OIL PUMP ASSY SUB-CMPNT,CSTG,WATER   MRRP  72.46

Just a check... are these the the latest and final Oil Pumps and are they working ?

NO

[eddfive]

Makes me want to run out and buy an M8???

[SoZo]

62400178   OIL PUMP ASSY SUB-CMPNT,CSTG,OIL   MRRP  72.46

62400182   OIL PUMP ASSY SUB-CMPNT,CSTG,WATER   MRRP  72.46

Just a check... are these the the latest and final Oil Pumps and are they working ?

NO

1. No they are not the latest (Please list them)...
or
2. No they are not working

LOL

[rich1]

There is supposedly now a 4th oil pump. Can anyone confirm this?

[happyman]

There is supposedly now a 4th oil pump. Can anyone confirm this?

believe it was installed in my bike.

[rich1]

Thanks. Do you have a part number?

[FSG]

There is supposedly now a 4th oil pump. Can anyone confirm this?

the P/Ns I've already posted are the 3rd and 4th pumps

[rich1]

There is supposedly now a 4th oil pump. Can anyone confirm this?

the P/Ns I've already posted are the 3rd and 4th pumps
[/quote

So 62400178 is the latest for the oil cooled bikes? On another forum they are reporting it has been replaced as of a few days ago. Thanks

[SoZo]

http://www.feulingparts.com/category/Oil%20Pumps/Milwaukee%20Eight%2017

http://www.feulingparts.com/category/Camchest%20Kits/Milwaukee%20Eight

[Kay9Cop]

http://www.feulingparts.com/category/Oil%20Pumps/Milwaukee%20Eight%2017

http://www.feulingparts.com/category/Camchest%20Kits/Milwaukee%20Eight

Have you had a wet sumping problem, installed one of these pumps, and the problem was solved?  If so, I think Harley would love to know.

[hd06]

 I Reilly think Harley don't care what we think.     

[Sc00ter]

Does anyone know what specifically is different about each of the four pumps? 

By specifically I mean (for example) if there is a different check valve between two pumps, what exactly is different about the two check valves...  If the difference is tolerancing (for example) what are the tolerance differences...

Thanks so much...

[SoZo]

HUGE differences...

[Prostock]

According to Drag net web, fueling pumps will be available tomorrow the 17th.

[Prostock]

Or I should say "Expected".

[JB2017CVO]

Well....all I can say is I supposedly had the latest and greatest oil pump installed in my 2017 CVO stage 4 about 2 weeks ago and once again it sumped...Not sure they have a clue as to what is really going on...Harley engineer is coming down again next week to tear down the motor in my bike with the tech and see if they can find an issue...If I hear anything I will be sure to keep yall informed...

[happyman]

Well....all I can say is I supposedly had the latest and greatest oil pump installed in my 2017 CVO stage 4 about 2 weeks ago and once again it sumped...Not sure they have a clue as to what is really going on...Harley engineer is coming down again next week to tear down the motor in my bike with the tech and see if they can find an issue...If I hear anything I will be sure to keep yall informed...

is your motor noisy  by chance   granted they make a little noise but seems some are very noisy for what ever reason,  among  other issues.