M8 oil pump generations?
Road Master
Joined: Jun 2008
Posts: 1,151
Likes: 328
From: Southern Utah, USA
The big question is, are you having a sumping problem? If not why worry? I have a build date of 01/2019 and no sign of sumping, and I've run the **** out of it on the super slab for hours...80+ mph about 3200 rpm...ripped it in twisties through Idaho high RPM in 4th and 5th and no sumping.
The reason I say this is...I don't have the 2020 wazoo pump, but who cares if it's not sumping. If you're non having a problem, don't go looking for one.
Just some sage advice.
The reason I say this is...I don't have the 2020 wazoo pump, but who cares if it's not sumping. If you're non having a problem, don't go looking for one.
Just some sage advice.
Seasoned HDF Member
Joined: May 2018
Posts: 5,814
Likes: 7,147
From: Las Vegas
The big question is, are you having a sumping problem? If not why worry? I have a build date of 01/2019 and no sign of sumping, and I've run the **** out of it on the super slab for hours...80+ mph about 3200 rpm...ripped it in twisties through Idaho high RPM in 4th and 5th and no sumping.
The reason I say this is...I don't have the 2020 wazoo pump, but who cares if it's not sumping. If you're non having a problem, don't go looking for one.
Just some sage advice.
The reason I say this is...I don't have the 2020 wazoo pump, but who cares if it's not sumping. If you're non having a problem, don't go looking for one.
Just some sage advice.
HDF Community Team
Joined: Mar 2008
Posts: 1,893
Likes: 552
From: NH
Most of the 2019's had the latest pump (at that time) and cover with seal that helped greatly with sumping over the course of the 2019 MY, up until May 22, 2019 when the new 8-lobe Gerotor pump was installed on 2019's...some amount of early 2019 MY bikes did not get the latest pump (at that time) and sealed cover...some of those sumped; most of those didn't sump...
If your 2019 has the pump and sealed cover and has not sumped, it may never...open it up to check and while at it add a cam!
If your 2019 has the pump and sealed cover and has not sumped, it may never...open it up to check and while at it add a cam!
Grand HDF Member
Joined: Nov 2013
Posts: 3,807
Likes: 1,488
From: SW Washington State
I have been in the cam chest twice on my 18 Road Glide, both times there was 8oz of oil that drained out once the cover was cracked open. S&S likes to scavenge both sides of the case,where the MoCO does not seem to care much about the cam side. Their new 2020 8 lobe even has less scavenge on the cam side. The MoCo also left the feed side alone,where the S&S has increased feed... Then we have the seal deal... Makes it tough for me to pick a direction when I do not understand why the MoCo leaves so much oil in the cam side and feels the need for the seal deal. I like the S&S but then there is no seal... Hummm?
Last edited by sixguns; Sep 16, 2019 at 10:27 AM.
Seasoned HDF Member
Joined: Jan 2008
Posts: 13,674
Likes: 11,463
From: State of Confusion
I have been in the cam chest twice on my 18 Road Glide, both times there was 8oz of oil that drained out once the cover was cracked open. S&S likes to scavenge both sides of the case,where the MoCO does not seem to care much about the cam side. Their new 2020 8 lobe even has less scavenge on the cam side. The MoCo also left the feed side alone,where the S&S has increased feed... Then we have the seal deal... Makes it tough for me to pick a direction when I do not understand why the MoCo leaves so much oil in the cam side and feels the need for the seal deal. I like the S&S but then there is no seal... Hummm?
HDF Community Team
Joined: Mar 2008
Posts: 1,893
Likes: 552
From: NH
guess the question could be..between S&S and the MOCO which one has done more R&D and testing on this?...sure there are some that will trash the MOCO for not having done it right in the first place, and rightfully so, then trying another X amount of attempts to finally thinking they got it right..then S&S who is reputable but stating their design is not being touted as a cure for what's been ailing the failures..I'm glad I got a 2020 with the hopefully best solution to date
Starting to type, but you beat me to it! I couldn't have said it better...
Road Warrior
Joined: Apr 2007
Posts: 1,382
Likes: 404
From: Illinois
If I had to do it again, I'd probably opt for the new OEM 8 lobe pump. Had it been available Feb/18 I would have went that route over Feuling.
Between Feuling and S&S, I would pick Feuling for this application as I know it works and have heard some reports some S&S not working.
Again, at this point, I'm guessing that the new OEM pump will solve the issue. I would also advise running 1/2 quart low.
As for cost, the new pump is somewhere around $110 + the cost of a cam cover gasket, which could be likely reused. If you wrench yourself, that is dirt cheap insurance. If you gotta have someone do it and not in warranty, I'd seek out a good indy. If you just gotta have an HD tech do it, plan on a few hundred in labor, and at that point might want to think of a cam (but then we are also into tuning).
Between Feuling and S&S, I would pick Feuling for this application as I know it works and have heard some reports some S&S not working.
Again, at this point, I'm guessing that the new OEM pump will solve the issue. I would also advise running 1/2 quart low.
As for cost, the new pump is somewhere around $110 + the cost of a cam cover gasket, which could be likely reused. If you wrench yourself, that is dirt cheap insurance. If you gotta have someone do it and not in warranty, I'd seek out a good indy. If you just gotta have an HD tech do it, plan on a few hundred in labor, and at that point might want to think of a cam (but then we are also into tuning).
Last edited by VDeuce; Sep 16, 2019 at 11:49 AM.
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Road Master
Joined: Aug 2008
Posts: 1,027
Likes: 163
From: Grapevine Texas
This is the part number for the new assy, which contains the pump, gerotor set, and seal plate.
62400247 KITOP8 LOBE SCAVENGE OIL
I actually did a video a month ago on replacing my stock 2017 SGS oil pump with this very pump, has a bunch of part numbers in description.
62400247 KITOP8 LOBE SCAVENGE OIL
I actually did a video a month ago on replacing my stock 2017 SGS oil pump with this very pump, has a bunch of part numbers in description.
