Kubota ZD21 5.00 star(s) (2)

Information, reviews, photos, discussion topics, owner pages, and specifications about the Kubota ZD21.
Zero Turn Mowers

About the Kubota ZD21



Kubota ZD21 Discussions (77)

Here are the most recent ZD21 topics from our community.
  1. Cycledude

    Kubota ZD21 zero turn mower starter issue ?

    I am the very well satisfied owner of a Kubota ZD21 but it has been suffering with a starter issue for several years and I would like to fix it. The starter motor seems to run fine but the gear...
  2. P

    ZD21 Owner's Manual

    Hello, Brought home a 2006 ZD21 with a 60" Pro deck today. Kubotabooks has the WSM but not the owner's manual. Does anyone have the owner's manual in digital form? I have the WSM if anyone needs...
  3. S

    Lube for a ZD21 mower?

    What oil goes in the transmission on a ZD21 mower?
  4. F

    Kerosene in kubota zd21

    I forget if there’s kerosene or diesel in my yellow gas can, if it’s kerosene will it hurt it? I have about a quarter tank of diesel in my mower, so it would be diluted a bit.
  5. T

    Kubota ZD21

    I am having issues starting my Kubota ZD21. It will only start if I hook a high voltage jump starter to it. Any ideas??
  6. G

    Zd21 starting issues

    I have replaced the starter, solenoid and the ignition key switch. Now I知 finding a safety switch is faulty. How difficult is it to replace a steering arm switch?
  7. R

    Kubotq ZD21

    Is there an adjustment on the arms to reduce the play. Both sides work fine but there is play in the arm before it touches the pump. I hope I have explained this so that it is understandable.
  8. F

    Kubota zd21 with intermittent sputtering/dying

    Figured I'd post info for anyone who might have had this problem. My mower started just fine. I'd mow for a few minutes, then it would drop RPM to barely running, and sometimes would stall out. I...
  9. B

    Kubota ZD21 Owners Manual Download Request

    Hello, I recently picked up a Kubota ZD21 60" deck unit. I was able to find the service manual online for it but only a ZD221 owners manual to download. Not the ZD21. Does anyone have a PDF I...
  10. F

    Kubota ZD21 hydro rebuild

    Hopefully cracking the case open tonight. I have to take the fender off, fuel tank, left axle, and then I should be able to get to the hydro. Problem is, messick's is listing two models, C45702...
  11. F

    Brought home a 2001 ZD21 today

    I was hunting for a diesel motor for a generator project, when I came across a craigslist add for a 21hp kubota 3cyl motor with less than 1000 hours for $500. Accessories included an entire zero...
  12. S

    Kubota ZD21 with electric issues

    I recently bought a ZD21 with 2000 hours on it. It runs and cuts great but the only way I know to start it is to push the back of the electric controller with a screwdriver. When I push in the...
  13. K

    Price Check Kubota 2003 ZD21 Zero Turn(s)

    I'm located near St Louis MO and am looking at a very nice 2003 Kubota ZD21 (standard deck) with ~1000 hours for $4750.00. I'm happy with the $4750 and most likely will buy it. However, he has an...
  14. D

    Kubota ZD21 Issues

    I'll start by saying I'm not mechanically inclined. I am a registered nurse so when you say solenoid or fuse please be specific because there is a good chance that you just went over my head...
  15. M

    ZD21 drive wheel lockup

    The left drive wheel locks up when I move the control level from the forward position back to the neutral position. It has just started this. It seems to act as if the lever has been pulled past...
  16. B

    Mowing mower deck wont raise on my zd21

    my deck wont raise on my zd21 Kubota zero turn
  17. T

    How many hours to wear out Kubota ZD21?

    Local John Deere dealer has a well used ZD21 (3400 hours). Paint is faded bad but it didn't look beat up. Is it worth looking at for the right price? I'd probably give $2500 for it if it runs...
  18. M

    ZD21 Electric lift pump specs

    I have the service manual for my ZD21, but can not find the specs for the small electric lift pump. Does anyone know the pressure or volume of these pumps? Any help is appreciated. Thank you.
  19. ae_ted

    2001 zd21

    Just got my ZD21 back from service and I got lucky and I have a great dealer(Horizon Lawn and Tractor). I was worried that one of the transmissions was going out. One side was not going as fast as...
  20. M

    zd21 operating/owners manual

    Hi all, I am after an electronic copy of the owmers/operating manual. Can anyone help?
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User Reviews (2)

Read what TractorByNet members think about the Kubota ZD21 Subcompact Tractor
5
100 %
4
0 %
3
0 %
2
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5.00 star(s)
jedhermit

ZD21 Kubota
Kubota in New Zealand
Model Year: 2009

This is the older of the 2 ZD21 mowers we have. 60 inch cut diesel with turf tires for summer and a set with more grip for winter. I love it. The speed and manuverability is excellent, fuel economy good, hill climbing good. Much of the areas we mow have had cattle during summer so the ground is not flat as a lawn, while we could do with some suspension, the ride on lower pressure tires is not too harsh. When the opportunity for a newer ZD21 came up we got it. 2012 42 inch 21hp with a hydraulic rear mounted catcher what fun and an excellent job. Highly recommend Kubota.

Pros: As above.
Cons: Could do with drink holder as standard.

5.00 star(s)
zd21

ZD21 Kubota
Great Machine Over Many Years
Model Year: 0

The Kubota ZD21 has been, overall, a highly reliable and high performing zero turn mower for small acreage. The 18HP engine has not needed repair or tune up. The claimed 21 horsepower is the advertising invention of the company. The real power is stated in KW on the engine data plate. The 18 HP figure I use is the correct conversion of the KW rating. The hydrostatic transmission did suffer a failed steel hydraulic line early in its life. This was a design or material error, and Kubota improved the material. We, however, paid for the repair part and labor I recently changed the mower deck drive belt, but it could have gone much longer. Belt changing is difficult relative to many more conventional machines but the double-v belt is uncommonly durable.

Pros: Sophisticated, well-integrated design relative to most other zero turn mowers. Very reliable engine. Articulating front axle. Good hillside performance on my hilly acreage.
Cons: Difficult to change mower deck drive belt. Lots of grease fittings to service. Difficult access to mower deck driveshaft grease fittings.

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Kubota ZD21 Owner Pages

View owner pages to see photos, customization and comments about member-owner Kubota ZD21s

Kubota ZD21 Community Rankings

#1 user rating of 246 Zero Turn Mowers items
#21 Viewed of 246 Zero Turn Mowers items
#1 discussed of 246 Zero Turn Mowers items
#1 user rating of 19625 items overall
#1077 Viewed of 19625 items overall
#191 discussed of 19625 items overall
#11 Ranking of Most-OwnerPages in 19625 items overall
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