All: I compile this data from the Kioti Owner/Operator page on TBN.  
You can also add / correct / update information by sending me a  message:    
http://www.tractorbynet.com/forums/sendmessage.php?do=mailmember&u=127071
                  Good background information        Link      
Excellent Tutorial: IP removal and DIY Repair - words & photos http://2881neches.com/kioti/
New: GaryRo: Good IP repair shop in MO  ->->[1] http://www.tractorbynet.com/forums/kioti-owning-operating/323945-kioti-fuel-injection-pump-failure-2.html#post3932293
New: Greenecho: Good IP repair shop in WA ->-> http://www.tractorbynet.com/forums/kioti-owning-operating/305375-ck-25-injection-pump-rail-2.html#post3936823
 Conestoga: Diesel IP Repair and parts in PA ->-> http://conestogadiesel.com
Mail-ordered new IP gears from Conestoga Diesel -->> http://www.tractorbynet.com/forums/kioti-owning-operating/305375-ck-25-injection-pump-rail-2.html#post3923594
Mail-ordered new IP Gears from H&H Diesel-->> http://www.tractorbynet.com/forums/bobcat-tractors/339826-ct235-fuel-injection-pump-failure.html#post4171045
Tear-down photos of failed IP gears and rack teeth ->->-> http://www.tractorbynet.com/forums/kioti-owning-operating/225273-injector-pump-failure.html
More Tear-down Photos http://www.tractorbynet.com/forums/kioti-owning-operating/305375-ck-25-injection-pump-rail.html#post3697271
Faulty IP gear metalurgy? ->-> http://www.tractorbynet.com/forums/kioti-owning-operating/230395-ck25-will-not-start-4.html#post2658645
KiotiDave local IP repair is the norm ->-> http://www.tractorbynet.com/forums/kioti-owning-operating/230395-ck25-will-not-start-7.html#post2965824
Reported by Date of Report Model Build Year Time at Failure[2] Failure Mode Corrective Action Kioti  Assistance? Reference TractorByNet Post
Alien 4/17/2023 CK30   800 IP Gear failure     https://www.tractorbynet.com/forums/threads/repair-common-kioti-mechanical-injection-pump-failure.296793/page-6#post-6529460
knibloe 5/31/2022 CK30 2006         https://www.tractorbynet.com/forums/threads/repair-common-kioti-mechanical-injection-pump-failure.296793/page-3#post-6287803
WesTex70 4/24/2022 CK25     IP gear failure DIY rebuild   https://www.tractorbynet.com/forums/threads/repair-option-for-kioti-tractors-with-broken-injection-pumps.296793/page-3#post-6259592
qbert 3/26/2020 CK30 2006 515 IP Gear failure (control sleeve)     https://www.tractorbynet.com/forums/kioti-owning-operating/332447-yet-another-kioti-injector-pump-4.html#post5690311
ScottFreeIII 11/27/2019 DK45SC 2006 2200 hrs IP Gear failure (control sleeve) Owner rotated bad gear 180 none https://www.tractorbynet.com/forums/kioti-owning-operating/296793-repair-option-kioti-tractors-broken-2.html#post5590804
maxx123 6/19/2019 DK45SE 2007   IP Gear failure (control sleeve) IP Rebuild by Conestoga none https://www.tractorbynet.com/forums/kioti-owning-operating/413983-kioti-dk45se-hst-rebuilt-fuel.html#post5457237
gravel13 8/12/10 9/16/18 CK25 2005 2010: 238 hrs 2018: 579 hrs IP Gear failure (control sleeve) 1:Dealer rebuild 2: Owner Rebuild none https://www.tractorbynet.com/forums/kioti-owning-operating/180043-ck-25-will-not-start-4.html#post5210262
hwkmn05 8/1/2018 DK45 2007 700 hrs tbd Replaced IP? na https://www.tractorbynet.com/forums/kioti-owning-operating/332447-yet-another-kioti-injector-pump-2.html#post5163569
ritcheyvs 4/19/2018 DK45s 2006 505 hrs IP Gear failure (control sleeve) DIY four new gears na http://www.tractorbynet.com/forums/kioti-owning-operating/394579-probably-ip-gear-control-sleeve-post5065163.html#post5065163
Steve_Miller 12/5/2017 CK30 2006 700+ hrs IP Gear failure (control sleeve) DIY rotate broken gear 180 na http://www.tractorbynet.com/forums/kioti-owning-operating/388871-injector-trouble-ck-30-a.html
Tim Middo 6/5/2017 EX45 2008 260 hrs IP Gear failure (control sleeve) DIY new gear[3] na http://www.tractorbynet.com/forums/kioti-owning-operating/380623-kioti-ex45-injector-pump-repair.html#post4784820
countrybumpkin 12/15/2016 DK45S 2005 218 hrs IP Gear failure, at full power DIY new gears, local purchase na http://www.tractorbynet.com/forums/kioti-owning-operating/373045-another-dk-stuck-full-throttle.html#post4633528
Grand_Pooba 8/11/2016 CT230     IP gear failure DIY rebuild   http://www.tractorbynet.com/forums/kioti-owning-operating/296793-repair-option-kioti-tractors-broken-2.html#post4528725
Baranx4 7/27/2016 DK40SE 2008 ? ? Conastoga rebuilt IP ? http://www.tractorbynet.com/forums/kioti-owning-operating/367658-removing-injection-pump-08-dk.html
3gGT01 6/19/2016 DK35 2005 627 hrs No start, middle IP gear failure  Owner replaced IP Gears[3] None requested Reported via PM
Kioti Paul 5/12/2016 DK45S 2007 595 hrs Full throttle after restart Owner replaced IP Gears[4] None requested http://www.tractorbynet.com/forums/kioti-owning-operating/358049-another-injector-pump-broken-gear.html#post4454283
DavPur 12/26/2015 CK25     Stopped Running Rebuilt IP   http://www.tractorbynet.com/forums/kioti-owning-operating/305375-ck-25-injection-pump-rail-3.html#post4324548
cabin kioti 7/26/2015 CK30 HST 2006 915 hrs Undetermined IP failure[5]   None requested http://www.tractorbynet.com/forums/kioti-owning-operating/254141-kioti-injection-pump-failure-data-5.html#post4200478
ToddyKioti 7/25/2015 CK25 2007 320 hrs Jammed rack, missing teeth Local rebuild / rotate gears 180 None http://www.tractorbynet.com/forums/kioti-owning-operating/254141-kioti-injection-pump-failure-data-5.html#post4199673
Oleozz 6/23/2015 DK45S 2006 900 hrs   Dealer replaced IP   http://www.tractorbynet.com/forums/kioti-owning-operating/339952-dk-45-hits-1000-mark.html#post4172754
brotsten 6/21/2015 CT235   1100 hrs IP gear failure Owner replaced all gears[6] None http://www.tractorbynet.com/forums/bobcat-tractors/339826-ct235-fuel-injection-pump-failure.html#post4171045
DK35Vince for Butch 3/4/2015 DK35SE 2008 800 hrs IP gear failure Owner replaced IP with new None http://www.tractorbynet.com/forums/kioti-owning-operating/332447-yet-another-kioti-injector-pump.html#post4065545
Jakesdad 11/25/2014 CK30 2007   IP gear failure[7] Conestoga repaired IP [8] None http://www.tractorbynet.com/forums/kioti-owning-operating/326379-ck30-ignition-switch-fi-pump.html#post3958679
GaryRo 10/18/2014 DK45s 2005 186 hrs unknown Dealer replace IP Warranty? http://www.tractorbynet.com/forums/kioti-owning-operating/319381-1-000-hour-club-4.html#post3924774
10/16/2014 1036 hrs IP gear failure[9] Local IP rebuild[10] None http://www.tractorbynet.com/forums/kioti-owning-operating/323945-kioti-fuel-injection-pump-failure.html#post3923188 
Greenecho 10/6/2014 CK25HST 2006 2008: 700 hrs  IP fail unk Dealer R&R IP Warranty http://www.tractorbynet.com/forums/kioti-owning-operating/305375-ck-25-injection-pump-rail-2.html#post3913558
2014: 1430 hrs IP gear failure[11] Shop replaced gears, DIY R&R[12] None http://www.tractorbynet.com/forums/kioti-owning-operating/305375-ck-25-injection-pump-rail-2.html#post3936823
whitetailchaser 9/14/2014 CK25 2005   IP gear failure Owner rotated bad gear 180 None http://www.tractorbynet.com/forums/kioti-owning-operating/321810-ck25-starting-problem.html#post3895143
Bernty 9/13/2014 CK 30 2007 300+ estimated IP gear failure Owner rotated bad gear 180 None http://www.tractorbynet.com/forums/kioti-owning-operating/321760-kioti-ck30-will-not-start.html
tractorlary 8/19/2014 CK25     IP gear failure Rebuilt by local Bosch shop None http://www.tractorbynet.com/forums/kioti-owning-operating/255565-ck30-injection-pump-5.html#post3869908
Dave107 5/11/2014 CK30 2007 approx 200 hrs  IP gear failure IP repaired by local(?) shop   http://www.tractorbynet.com/forums/kioti-owning-operating/312062-new-forum-kioti-ck30-will.html
ERE 5/2/2014 CK25 2005 428 hrs  IP gear failure Conestoga Diesel replaced gear[13]   http://www.tractorbynet.com/forums/kioti-owning-operating/311292-ck25-strange-death-symptoms.html
JHack 3/26/2014 CK25 2006 275 hrs IP gear failure Owner rotated bad gear 180 Less than none http://www.tractorbynet.com/forums/showthread.php?t=307507&p=3719017#post3719017
bo s 3/9/2014 CK25   745 hrs IP gear failure Owner replaced IP gears only   http://www.tractorbynet.com/forums/showthread.php?t=305375&p=3696721#post3696721
Fuggley 12/21/2013 CK30 2006 880 hrs IP gear failure Owner replaced,  new IP   http://www.tractorbynet.com/forums/kioti-owning-operating/299077-ck30-running-rough-no-power.html#post3582206
Basic Bama 12/3/2013 CK30 2007 400 hrs tbd     http://www.tractorbynet.com/forums/kioti-owning-operating/295232-power-beyond-question-2.html#post3557498
triser 10/29/2013 CK30 2007 200 hrs confirmed gear failure   None http://www.tractorbynet.com/forums/kioti-owning-operating/255565-ck30-injection-pump-5.html
triser 10/29/2013 CK30 2007   confirmed gear failure Owner replaced IP DIY for $1076 None http://www.tractorbynet.com/forums/kioti-owning-operating/255565-ck30-injection-pump-5.html
jake 98 7/30/2013 CK25 HST 2007 100 hr    550 hr   New IP, $260 Labor[14] Kioti paid for IP http://www.tractorbynet.com/forums/kioti-owning-operating/286457-2008-dk-55-injection-pump-2.html#post3406358
walkerj 7/23/2013 DK55 2008   suspected IP gear failure Pending    
ty 3/2/2013 CK30 HST 2006 200 hrs Rack failure Dealer replaced with new IP Warrany http://www.tractorbynet.com/forums/showthread.php?t=286457&p=3396728#post3396728
5/29/2016   850 hrs IP Failure Dealer replaced with rebuilt IP   http://www.tractorbynet.com/forums/kioti-owning-operating/359049-ck30hst.html#post4466247
mashyken 10/20/2012 DK45S 2006 < 500 IP failed wide open Dealer replaced w/ new Kioti IP Warranty http://www.tractorbynet.com/forums/kioti-owning-operating/251397-dk45s-injector-pump-problems-500-a-10.html#post3040161
tnron 10/15/2012 CK30 2005[15] Jun 2012 262 hr Confirmed IP gear teeth Local IP shop rotated gear 180[16] None Data came via prvate message
yoladamama 9/24/2012 CK25H 2006 2012        80 hrs Confirmed IP failure Dealer replaced w/ new Kioti IP Provide IP part only[17] http://www.tractorbynet.com/forums/kioti-owning-operating/251397-dk45s-injector-pump-problems-500-a-8.html#post3011967      http://www.tractorbynet.com/forums/showthread.php?t=251397&page=8&p=3022253#post3022253
grandpa1940 9/23/2012 CK25 2006 2012 est 214 hr Chipped IP gear teeth repair pending None http://www.tractorbynet.com/forums/kioti-owning-operating/251397-dk45s-injector-pump-problems-500-a-7.html#post3011050
williekioti 9/13/2012 CK30 2006 150 hrs  2009 est     Warranty http://www.tractorbynet.com/forums/kioti-buying-pricing/255662-kioti-injection-pump-failure-warning-2.html#post2998594
stealthf8r 8/29/2012 DK55 2008 7/27/2012      389 hr 4 delivery valve springs broken[18] Owner replaced w/ new Kioti IP None http://www.tractorbynet.com/forums/showthread.php?t=252993&p=2980656#post2980656  http://www.tractorbynet.com/forums/showthread.php?t=254141&page=4&p=2980665#post2980665
btward79 8/26/2012 CK30 2005[19] 39 hr Rack/gear fail (unconfirmed) Dealer  replace w/ new Kioti IP Warranty for IP part only[20] http://www.tractorbynet.com/forums/kioti-owning-operating/255565-ck30-injection-pump.html
oldbob 8/22/2012 CK20S           http://www.tractorbynet.com/forums/kioti-owning-operating/254141-kioti-injection-pump-failure-data.html#post2972283
Gittyup 8/11/2012 CK25 2006 320 hr stuck at full throttle   Warranty http://www.tractorbynet.com/forums/kioti-owning-operating/254141-kioti-injection-pump-failure-data.html
dlw1501 8/2/2012 CK25 2006 2008-2009 300-400 hr unknown Dealer replaced w/ new Kioti IP Covered by Warranty http://www.tractorbynet.com/forums/kioti-owning-operating/254132-ck25-injection-pump.html#post2958956
dlw1501 8/2/2012 CK25 2006 2012      925 hr[21] rod jammed on bore Owner replaced w/ new Bobcat IP Zero http://www.tractorbynet.com/forums/kioti-owning-operating/254132-ck25-injection-pump.html#post2958956 ◙     http://www.tractorbynet.com/forums/showthread.php?t=254141&page=2&p=2977636#post2977636
sherrym 7/11/2012 DK45S 2006 6/18/2012 500 hr Broken teeth #4 cyl plunger gear[22] Owner replaced w/ new Bobcat IP[23] Zero http://www.tractorbynet.com/forums/kioti-owning-operating/251397-dk45s-injector-pump-problems-500-a.html  http://www.tractorbynet.com/forums/kioti-owning-operating/251397-dk45s-injector-pump-problems-500-a-8.html#post3031709
letoke 3/3/2012 CK30       Owner replaced w/ new Kioti IP None http://www.tractorbynet.com/forums/kioti-owning-operating/230395-ck25-will-not-start-4.html#post2740016
econ99 1/6/2012 CK25     Rack/gear fail (unconfirmed) Owner replaced IP,  1/7/13   http://www.tractorbynet.com/forums/kioti-owning-operating/230395-ck25-will-not-start.html
PatS 11/10/2011 CK20S           http://www.tractorbynet.com/forums/kioti-owning-operating/225273-injector-pump-failure.html
bob42 11/9/2011 DK40   2010     100 hr Rack/gear teeth failed Dealer replaced w/ new Kioti IP Warranty http://www.tractorbynet.com/forums/kioti-owning-operating/225273-injector-pump-failure.html
Bogey5 7/22/2009 CK30           http://www.tractorbynet.com/forums/showthread.php?t=149136
jordanh 7/22/2009 CK30           http://www.tractorbynet.com/forums/showthread.php?t=149136

[1]
Note: no teeth cut on backside of gear
[2]
Columns for serial number and SS type deleted because data seldom furnished
[3]
Scott:
New gears from H&H Diesel
[4]
Scott:
New gears from H&H Diesel
[5]
Second IP replacement.  See earlier 3/2/13 event below
[6]
See linked TBn post for photos and invoice for new gears
[7]
IP jammed at full power until fuel line cut
[8]
Repair cost $280 plus shipping
[9]
IP jammed at full power until fuel line cut
[10]
Local rebuild for $200
[11]
The gears in the replacement IP (warranty repair at 700 hrs) could not be rotated 180 degrees because teeth were not machined on backside
[12]
Local shop replaced all three gears with new and tested IP for $115 total.  Shop claimed new gears should outlast tractor.
[13]
New tall-type gear unavailable (year+  back-order) Conestoga replaced with used gear they had on hand
[14]
Applies to second failure
[15]
Purchased new in 2005
[16]
Repaired through local dealer who repaired five similar IP failures.  IP shop also calibrated and shimmed IP.  Total cost to fiv: $425.
[17]
Years out of warranty but only 80 hours. Dealer worked with Kioti area rep.  Kioti agreed to provide new IP and owner will pay labor and transport.
[18]
Zexel IP
[19]
Initial purchase in 2008
[20]
Nearby dealer (not original seller) agreed to intervene with Kioti.  Kioti agreed to replace IP under warranty if defective.  But owner must pay labor and to transport tractor to dealer (100 mi), est $700 cost.
[21]
Second Kioti IP failed at approx 575 hrs
[22]
Failed IP had metal tag w/ Doowan logo & said Zexel license in small print
[23]
Repair complete 10/12/12. 
Bought new IP from Wallace Tractor saving over $300 off Kioti list price.