How to Read Your TUFF TORQ® Barcode
As part of our “Tech Tips” series, we will address a common topic among our customers, How to Identify Your Products with the TUFF TORQ® Barcode. When customers call the TUFF TORQ® Service Department, a technician will ask for their transmission’s serial number in order to access and provide the correct information about their product. This blog post will provide all of the necessary information to read our barcodes and help you interact with our service team.
In addition, we will also provide quick and easy instructions for how our customers can use the TUFF TORQ® barcodes on our website to research and gather more information about their products. Enjoy!
The TUFF TORQ® Barcode

The TUFF TORQ® Barcode Infographic
TTC’s 11-Digit Part Number
The TTC 11-Digit Part Number is the part number for the whole product.
TTC’s Product Serial Number
The Product Serial Number identifies “model” and distinguishes your product from all others created.
OEM Part Number
*This is the part number issued by the OEM. For example, a John Deere part might look like this… JD PN: 123-12345. Please note, not all barcode labels reflect the OEM part number. It may or may not be present.
Finding Information on TUFFTORQSERVICES.COM
Step-by-Step Instructions

Tuff Torque Barcode, Figure 1.
1. Review Your Barcode
- TTC’s 11-Digit Part Number Figure #1 (red oval)
- TTC’s Product Serial Number Figure #1 (yellow oval)
- OEM Part Number Figure #1 (green oval)
2. Navigate to TuffTorqServices.com
3. Click on Tuff Torq Service Parts Catalog
4. Click on Catalog Shop
5. Click on Hydrostatic: Riding Mower Transmissions-Pumps-Wheel Motors
6. Review the selections and look for a match to the TTC Product Serial Number. Please note, you are looking for the prefix section before the dash.
7. As our unit is a T40J (per our Serial Number), we will navigate to T40 and click on the selection.
8. As the T40 series has two options, please reference the TTC Product Serial Number. As our example is a T40J, we will click on the far right choice.
9. Now, click on the product that corresponds to the TTC Product Serial Number found on the TUFF TORQ® barcode.
With the knowledge of how to read the TUFF TORQ® barcode, anyone can use our website to gather information and parts schematics. Should any questions arise, please contact us via email or by phone. When on our website, for the best user experience, please download the Flash plug-in.
Email: salessrvc@tufftorq.com
Phone: 866.572.3441
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Hello Team, Merry Christmas Can you help please a Require a Transmission details are Tuff Torq 7A632084030 S/N 62G-0006044 COUNTAX P/N 478000400 And would need to be freighted to New Zealand My email is warehousecars@xtra.co.nz Kind Regards Nigel Marshall
just purchased a K57R serial # 7A646084020.
do you know what the factory oil is in it?
with all the issues of the K46 wanted to use 20-50 synthetic oil
Bought a Husqvarna Rider 120C which has a TUFF TORQ transmission. No oil is showing in the plastic transparent reservoir. How do I fill up the transmission to bring the oil up to the full level for: Tuff Torq 787T0024040 S/N: 36P-1026724
HSQ/AB: PN: 585 23 52-01 what is the recommended oil.
I have a 206 JD X300. After mowing up a small hill at my lake home for about 5 years the K46 transaxle was giving out. I bout an X320 for the lake home and took the 300 back to my permanent home where there is just a slight grade to deal with. I only have 300 hours on the X300 so I’d like to replace or re-build the transaxle. Which variation of the K46 is the best? I want to be able to change the oil easily. Is there a stronger, more powerful replacement for my K46 that will fit my X300?
Are all axles on K46 the same spline count? Can I use an axle that is for a K46BR in a K46CR?
Which transaxle comes in John Deere lt190.Is the part number on the transaxle or where do I find the information.
Will 1A646034141 Transmission Right axle fit my TT# 7A646084091 S/N 46AW0106233?
I have a Tuff Torque P/N 7A646024390 JD P/N: AM131580 S/N: 46AC0197911. I need to replace this transaxle as it has started jerking and jumping when turning. I would like to know what newer models that would be very similar as this is a 2004 I believe. Most transaxles with that JD part number will likely have high usage also. Can you refer me to some information that will help me maneuver through the model numbers, part numbers,cross reference charts, that would let me be able to look for the newest possible replacement?
i have i believe a k57 not sure it is on a simplicity rider 16hp vanguard vtwin and i believe 38 inch cut my question is can you replace the input shaft without having to take the trans case apart
Can you replace a tough Torx t40 with a tough Torx k62 on a John Deere l118 lawn tractor?
I need axel seals for a TuffTorq transmission S/N 46BN0054968
I need to axle oil seals for 7A646084160
S/N:46BNOO21372
EHP PN:404047
Trying to find which trans. In my husqvarna mower.7A646084321 s/n 46CR0103366
I am attempting to identify the transmission in the Cub Cadet XT1 LT42. Please confirm which Tuff Torq transmission is used in model year 2020.
Thank you.
Hi
I have a x125 John Deere ride on mower and am looking for a transmission am 134582 would you have one in stock
I need left rear axle for my husqvarna
I have a Craftsman rider with a Tuff Torque hydrostatic transmission 7A646084181 HOP SERIAL PN 426120 . I want to find out what part I need for this. I can’t pinpoint the part until I know exactly what I see. Could you send a diagram of all parts of this hydrostatic drive to me?
I have a Simplicity Broadmoor with a Tuff Torq transmission 7A646084550 S/N 57AF0003159 and it stops moving after it warms up and will not climb a hill. It has a whine like a low on hydraulic oil whine. Any ideas and do you have rebuild kits for this particular transmission?
Does Tuff Torq still carry parts for a K51A axle?
Please let me know when you get this message.found pulleys on website need now wright pulley thanks again Alex
Need to now which splin drive pulley to a tuff torq 7A632084780 s/n 66AP0003831 it came out of simplicity conquest mower with hydro deck lift and power steering. Need drive pulley to transmission.top speed was 12mph with 10″ wheels.. put 24+12.00-12 wheels now. Part# of pulley on transmission.could use pulley on engine 1″1/8 bore hole pulley for engine to.what type transmission is this. thanks Alex
Tuff Torq. 7A646024330 S/N : 460-0015368. Karsit P/N 358698. I need new rear axle. when looking from the back of the machine its on the right hand side, looks like shorter axle than the other side.
I got a husqvarna yth 24v5v. transmission number are stuff torq 7a646084181. s/n 46BT166944 and hop PN: 426120. I need the left rear axle for it. that short Alex
I have tuff torq unit model 55 it has torn out the spline on the drive pulley.I have found nothing inside the unit that would cause this there is a small crack in motor wedge plate but I dont think this has cause this ?
Hi
I have a Countax C 400 fitted with a Turf Torq transmission, the numbers are as follows
7A646024041
S/ no 46E- 0054408
Could you please advise the transmission unit model fitted
Thankyou
I have a new K66R. When I let off the foreward pedal & go to reverse, the K66 lurches quite a bit. Is this harmful to the transaxle ?
I have a John Deere z425 mower with transmission 787Q0824000/SN# 7D20015877. Which rebuild kit for I need?
I have a viking mt 5097 with a tuff Torque 7a646084210. Serial number is 463m0003584. Is this a k46? What is the right transmission oil?
I am doing a general seal kit replacement with oil change on a K46DM. I am also removing the cover to re-seal as well. what is the reccomended cleaning solution for washing the internals of the case to remove sediment and old oil before re-sealing and adding new oil? Also are there parts schematics for re-assembly to double check re-assembly if removal of parts is required?
I need part number for axle seals for kc46 transaxle. Axle number is 7a646084321 it’s in a yt48xls Husqvarna riding mower
I have John Deere L111 lawn tractor requiring a replacement transmission. As follows
768T2024000. 40A 0033508. JDPP. AM134125. Can you supply this and cost please
Good morning.
I have a 7A632084610 model K62v in my garden tractor. Will a 7A632084621 model K66y be a heavier duty direct bolt in replacement unit? If not, why? What do the V and Y suffixes indicate? All external dimensions seem to be the same.
I have a 1996 John deere gator 4×2 need transmission
I have a x300 JD tuff torq 7a646084220 transaxle what other models have the same transaxle?
Can a Dixon 26D KH48 tractor handle a snowblower without any failures?
Hello,
I have a K58 mounted with the input shaft horizontal to the ground, shaft driven from the engine. It has a remote fill bottle. The manufacturer suggests to keep the bottle full. I am concerned that there may not be oil in the final drive area of the housing as they are segregated. TT suggest filling this transmission from a drain plug upright position. Also what is the fluid capacity. Thank you
My barcode does not look like this one. All in one line at top of barcode: tuff torq 787Q08240010 SN: 7D-Roo30167
I have a Husqvarna TS 348 with I think 46LR Transmission and it appears to always be in locked mode. ie I cant go round corners without scuffing. Dan you please help.
Hello
I have a 2001 sabre 2554 the tuff torq tag is not readable. Can you tell me which trans is in that. Thanks for any help
how oil does a tuff torq 787q0684140 SN: 13d-L001468
If I tell you the model number of my Cub Cadet can you verify the transmission number that was sold on it? Sent it to the shop and I have questions if I got the original transmission back.
Hello We are lawn mower repairer We want to have the reference of your home for a KA46 gearbox pulley axis kit on a wolf tools .The reference at home of this piece is WO 28488 and the machine is a A80B of 2004 ref: 033253
Thank you Best regards
Sylvain Touret
SARL TOURET
Hello. I have a 2012 D110 lawn tractor that has leaking axle seals. I am having trouble figuring out if the transaxle is a T40A or T40J as the tag has been destroyed. I need the part # for the axle seals and which type of oil, and how much to put back in it after I drain it and replace the seals. Also is there any kits that I should get and change on it since I have to take it out?
1993 94 john deere 245.no barcode on transaxle. Its only stamped 080102. What model transaxle do I have?
Hello, I am enquiring about a John Deere transmission on a ride on mower LTR180 with the following references :
Model TUFF-TORQ K46A; Serial number 46A-0035971; OEM Part Number JDHW AM130447
Could You please tell me the availability & costs for delivery in France (close to La Rochelle), Thank You in advance; Best regards
Can u tell me what gearbox 322-0750. 3073T 1079. 322-0750 on Countax Lawn Tracror please and how much fluid does it take?
I am enquiring about a john deer transmission on a ride on mower lx280 with a transmission number ( 7A 632024000 62A =0724207
JDHW P/N..AM123275
I WOULD like to know the availability and cost delivered to Australia please
Regards Rod Gee =
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