2019 Kubota rtv 900x oil drain locations

dom088

New member

Equipment
Ryv900
Aug 13, 2025
3
0
1
Canada
Hello all,
I am looking to see if you can guide me to the locations of the drain locations for oil on my rtv.

I got a rock stuck between the back plate and the yellow oil filter (I believe the hydraulic filter) and it is now leaking at that filter.


Does anyone have a manual that shows the drain locations. Also when changing that filter out do I need to do anything specific to get air out of the system?

Also it looks like I must use the Kubota super udt2 oil rather than a alternative oil? What is the other oil filter behind the yellow one?

Thanks for the help!
 

Bee-Positive

Well-known member

Equipment
BX1880, FEL, Tooth Bar, MMM, QH, Ballast Box
Nov 16, 2022
302
298
63
Amsterdam, NY
Hello all,
I am looking to see if you can guide me to the locations of the drain locations for oil on my rtv.

I got a rock stuck between the back plate and the yellow oil filter (I believe the hydraulic filter) and it is now leaking at that filter.


Does anyone have a manual that shows the drain locations. Also when changing that filter out do I need to do anything specific to get air out of the system?

Also it looks like I must use the Kubota super udt2 oil rather than a alternative oil? What is the other oil filter behind the yellow one?

Thanks for the help!
The air will work itself out, fill to the marks on the dip stick. Run the engine to fill the new filter then recheck dip stick level.
Use Super UDT2
"other oil filter"??? Pictures would help.

You can get the manual here:

RTV Manual Download.jpeg Screenshot RTV900.jpeg
 

Bee-Positive

Well-known member

Equipment
BX1880, FEL, Tooth Bar, MMM, QH, Ballast Box
Nov 16, 2022
302
298
63
Amsterdam, NY
I don't own an ATV so I'm taking an uneducated guess.
The smaller black one looks like it's for the engine oil.
The bigger yellow one looks like it's for the transmission.
The WSM should guide you.
 

JasonW

Well-known member
Jan 29, 2015
489
274
63
Al
Do you have the owners manual? 2nd hit on google has a free operators manual.

Edit. I stand corrected. Refer to the post below this
 
Last edited:

Alfred_2345

Active member

Equipment
L3901, LA525, BH77, SGC1060, RZ60, Box Blade, Z726XKW ZTM, RTV-X900
Jan 5, 2023
134
65
28
Northwest Arkansas
The operators (owners) manual has the filter/oil change info:

The black filter in your picture is the hydraulic oil suction filter. (Engine oil filter is on the engine block.)
Yellow is the transmission (HST) filter. They both filter the hydraulic oil.

See also my post on changing these filters out:

When changing the suction filter, the hydraulic oil will flow/drain out of the tank when its off.
Be ready with the new filter to minimize oil lost.
 
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dom088

New member

Equipment
Ryv900
Aug 13, 2025
3
0
1
Canada
The hydraulic oil suction and the transmission filter both pull oil from the hydraulic oil Reservoir?
Should they both be done at the same time?

Best to get these filters from Kubota and not use a generic one?
 

Alfred_2345

Active member

Equipment
L3901, LA525, BH77, SGC1060, RZ60, Box Blade, Z726XKW ZTM, RTV-X900
Jan 5, 2023
134
65
28
Northwest Arkansas
To the best of my understanding, yes, both pull from oil tank. The workshop manual (WSM) has detailed hydraulic circuit diagrams. However, I am new to hydraulic and still learning so I could be wrong.

There is a Service Intervals table in the ops manual that states both filters should be replace every 200 hrs and fluid every 400 hrs.

I get my filters from Kubota. My thinking is that saving 20 or 30 bucks isn't worth the risk of my investment in the machine.