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6A320-56220
Kubota 6A320-56220 oil seal (also called an oil seal, shaft seal, or axle seal).
Commonly used in the Front Axle and Front Axle/Chassis sections, including applications such as differential gear shaft and front axle/axle case diagrams on various Kubota tractor models.
Please confirm fitment by matching your model and diagram location.
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This part fits 98 models
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Installation Tips
(2 hours)
Removing the snap ring is most difficult part of disassembly; be sure to place a floor jack or bottle jack under the pivot assembly to remove weight off the snap ring for easier removal. Installing lower half of seal is easier if it's left in a freezer for some time prior, then it can nearly be pressed into position with hands.
Removing the snap ring is most difficult part of disassembly; be sure to place a floor jack or bottle jack under the pivot assembly to remove weight off the snap ring for easier removal. Installing lower half of seal is easier if it's left in a freezer for some time prior, then it can nearly be pressed into position with hands.
5/10/2024
FAIRMONT, WV
Dennis
FAIRMONT, WV
Dennis
A ratcheting snap ring plier is invaluable for removing and installing the snap ring. Watch one of the youtube videos. A 2" PVC union worked well to install the portion of the seal on the spindle shaft.
3/28/2024
MINOT, ND
Clinton
MINOT, ND
Clinton
(45 minutes)
I watched a few online videos to understand the process better. The only difference is a bearing puller was used to assist in setting the upper race rather then a hammer and a 2 inch pipe. I also used a large clamp to hold the wheel assembly together so I can get the bottom clip reattached using both hands. Also used liberal amounts of silicone grease in the assembly process to allow everything to eastly go together and because it will not effect the rubber parts of the seal.
I watched a few online videos to understand the process better. The only difference is a bearing puller was used to assist in setting the upper race rather then a hammer and a 2 inch pipe. I also used a large clamp to hold the wheel assembly together so I can get the bottom clip reattached using both hands. Also used liberal amounts of silicone grease in the assembly process to allow everything to eastly go together and because it will not effect the rubber parts of the seal.
11/9/2023
Kingman, AZ
Bob
Kingman, AZ
Bob
(4 hours)
Find a good pair of 90° snap ring pliers. I used a 2” PVC coupling with a short piece of pipe to install upper half of seal onto upper spindles. Coated both lower and upper parts of seal with silicone grease to insure good lubrication. I have an older BX2200 which did not require the o rings so all I needed was the gasket making sealant. Approximately 5 qts. 80/90 axle grease. Filled each hub through top hole, occasionally turning hub to improve air removal. This task is reasonably easy for a DIY job. Saves about $1500. Snap ring pliers and a 2” coupling with 4” long piece of pipe are the key tools.
Find a good pair of 90° snap ring pliers. I used a 2” PVC coupling with a short piece of pipe to install upper half of seal onto upper spindles. Coated both lower and upper parts of seal with silicone grease to insure good lubrication. I have an older BX2200 which did not require the o rings so all I needed was the gasket making sealant. Approximately 5 qts. 80/90 axle grease. Filled each hub through top hole, occasionally turning hub to improve air removal. This task is reasonably easy for a DIY job. Saves about $1500. Snap ring pliers and a 2” coupling with 4” long piece of pipe are the key tools.
11/3/2023
BONNER SPGS, KS
J
BONNER SPGS, KS
J
(2 hours)
Need to split inner oil seal ring on axel.
Need to split inner oil seal ring on axel.
8/20/2023
Jamestown, SC
ROBERT
Jamestown, SC
ROBERT
(18 minutes)
PROJECT: Removed/Repaired/Reinstalled both front axle gear case units on Kubota model BX2230D. R&R both front axle oil seals, R&R both front axle inner & outer bearings, R&R both front axle gear case upper dual-piece oil seals, R&R silicone sealant on both front axle gear case covers (Kubota Silicone Sealant Gray #70000-73764-620), reassembled both front axle gear case units, torqued front axle gear case covers mounting bolts, reinstalled both front gear case units to the front differential case, allowed sealant to cure overnight. The following morning serviced front differential system with 5 quarts 80/90 gear oil. Many various tools required to complete process; hand tools, torque wrench. gear puller, hydraulic press, etc. I found that a Coupling for 2 inch diameter scedule 40 PVC pipe worked nicely installing the front axle gear case upper dual-piece oil seals. Nothing easy about any part of this project.The time stated is from the start to the finish of this project.
PROJECT: Removed/Repaired/Reinstalled both front axle gear case units on Kubota model BX2230D. R&R both front axle oil seals, R&R both front axle inner & outer bearings, R&R both front axle gear case upper dual-piece oil seals, R&R silicone sealant on both front axle gear case covers (Kubota Silicone Sealant Gray #70000-73764-620), reassembled both front axle gear case units, torqued front axle gear case covers mounting bolts, reinstalled both front gear case units to the front differential case, allowed sealant to cure overnight. The following morning serviced front differential system with 5 quarts 80/90 gear oil. Many various tools required to complete process; hand tools, torque wrench. gear puller, hydraulic press, etc. I found that a Coupling for 2 inch diameter scedule 40 PVC pipe worked nicely installing the front axle gear case upper dual-piece oil seals. Nothing easy about any part of this project.The time stated is from the start to the finish of this project.
6/11/2023
MARYVILLE, MO
DANIEL
MARYVILLE, MO
DANIEL
(5 minutes)
10/20/2022
STEPHENS CITY, VA
DAVID
STEPHENS CITY, VA
DAVID
(2 hours)
6/1/2022
SWEET HOME, OR
Russell
SWEET HOME, OR
Russell
(3 hours)
Get a good pair of right-angle retainer clip pliers. Took some time to reinstall the retaining ring. But other than that, It's a straightforward job
Get a good pair of right-angle retainer clip pliers. Took some time to reinstall the retaining ring. But other than that, It's a straightforward job
2/16/2022
WATERTOWN, CT
Francis
WATERTOWN, CT
Francis
(1 hour)
You will need a good quality 45 degree or 90 degree snap ring pliers to remove snap ring. A 2” pvc drain pipe fitting works great to tap upper shaft seal onto shaft. I used a bar clamp to hold assembly together when reinstalling c-clip.
You will need a good quality 45 degree or 90 degree snap ring pliers to remove snap ring. A 2” pvc drain pipe fitting works great to tap upper shaft seal onto shaft. I used a bar clamp to hold assembly together when reinstalling c-clip.
1/17/2022
STANWOOD, WA
LYLE
STANWOOD, WA
LYLE
Unrated
(15 hours)
It's a bear to get to. Must remove fenders, step and loads of goodies. Then front HST cooling cover and next bearing housing needs removed. Hidden between the roller bearing and the needle bearing resides this little expensive part, labor wise, not cost for seal!! No easy way, dig in and "Git er done"!
It's a bear to get to. Must remove fenders, step and loads of goodies. Then front HST cooling cover and next bearing housing needs removed. Hidden between the roller bearing and the needle bearing resides this little expensive part, labor wise, not cost for seal!! No easy way, dig in and "Git er done"!
12/7/2021
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Vast majority of time is disassembly and reassembly. Must have (decently robust, preferably 90 degree) snap ring pliers, then use old seal cap (which stays on hub when you pull knuckle) to drive the seal in (used a 2” socket to drive).
RIPLEY, WV
Greg