Tuff Torq 1A632099190 Repair Kit (K62MQ& V)
Mfr # 1A632099190
Item # GD-1A632099190
In stock · Free shipping
$373.75/ each$427.14
Genuine Tuff Torq · Sold & shipped by RFQQQ
Tuff Torq K62 & K66 Transaxles, Repair Kits & Parts
K62 and K66 are Tuff Torq's premium yard- and estate-tractor transaxles: 1-inch steel axles, 10 cc pump and motor, and optional differential lock, external filter and auxiliary hydraulics. The K66 adds steel gears and up to 310 lb-ft of axle torque for ground-engaging work; the K664 is the 4WD version. Genuine Tuff Torq, with free shipping on orders $100 and up.
- Free shipping on transaxles & kits (lower 48)
- Low Price Guarantee: we beat any advertised price by 5%
- Ships from stock, 1–2 business days
K62 & K66: repair it or replace it?
Hydrostatic K62/K66 problems come in a few patterns. Match yours to decide between a repair kit, a seal kit or a new unit.
| What it's doing | What's usually wrong | Kit or unit? |
|---|---|---|
| Fine when cold, weak or stalls on hills once warm | Worn pump/motor blocks or center case, or old, thin oil | Repair kit if the oil is clean and hours are moderate; new unit if the oil is dark or has metal in it |
| Won't move, engine runs fine | Bypass/tow valve left open, broken belt or pulley, or a failed internal part | Check the bypass lever and belt first. Internal failure usually means a new unit |
| Whining or grinding under load | Gear or differential damage, often from running low on oil | New unit. Gear damage spreads metal through the whole unit |
| Oil leaking at the axles or input shaft | Worn axle or input-shaft seals, or a leaking case joint | Seal kit if caught early; top up the oil and listen for gear noise |
| Creeps in neutral or won't return to neutral | Control arm / return mechanism out of adjustment or worn springs | Adjust neutral first; replace return springs or arm if worn |
Not sure? Send us the model, the 11-digit part number from the label and what it's doing. We'll tell you honestly whether a kit will fix it, usually the same business day. Ask through the Part Finder.
Complete K62 & K66 transaxles
Match the model code and part number on your transaxle's white barcode tag. Model codes are not interchangeable (a K46BT does not replace a K46AC). Prefilled units ship with Tuff Tech fluid already in them.
K62AC
7A632084760Replaces: Simplicity / Snapper / Ferris 1755451, Simplicity 1755451YP, Simplicity 84003709$1,472.50
K66AP
7A632084780Replaces: Simplicity / Briggs & Stratton 1755100YP$1,686.25
K66L
7A632084490$1,672.00
K62AD
7A632084480$1,420.25
K66AS
7A632084800Replaces: Simplicity 84003711$1,472.50
K66AG
7A632084690Replaces: Husqvarna 580402201$1,515.25
K62AC
7A632084900Replaces: Simplicity / Snapper / Ferris 1755451$1,472.50
K664K
787Q0584000Replaces: Simplicity 1755452YP, Simplicity 1755452$1,355.64
K66R
7A632084050Replaces: John Deere AM131257$1,187.50
787Q0584550 K664J Smp Transaxle
787Q0584550$1,657.15
787Q0584520 K664E Ags Transaxle Shipped Without Oil
787Q0584520$1,800.19
787Q0584010 K664L Grillo Transaxle Ship Without Oil
787Q0584010$1,780.06
787Q0584570 K664M Husqvarna Transaxle
787Q0584570$1,715.80
7A632084281 K62E Sti Transaxle
7A632084281$1,433.18
7A632084450 K66BD Transaxle
7A632084450$1,726.46
7A632084041 K62Q Ags Trans(w/o Fan/pulley)
7A632084041$1,193.08
7A632084030 K62G Cntx Transaxle
7A632084030$1,469.66
7A632084511 K66B Stiga Transaxle
7A632084511$1,436.73
7A632084060 K66S Caron Transaxle
7A632084060$1,306.42
7A632084460 K66BC Transaxle
7A632084460$1,641.37
7A632084280 K62E Sti Transaxle With Holes In Axle
7A632084280$1,138.30
7A632084750 K66AM Transaxle
7A632084750$1,540.54
7A632084830 K62AF Transaxle
7A632084830$1,491.14
7A632084820 K66AQ Transaxle
7A632084820$1,553.34
7A632084590 K66I Cntx Transaxle
7A632084590$1,621.37
7A632084581 K62M Ags Transaxle
7A632084581$1,314.11
7A632084683 K66AH Iseki Transaxle
7A632084683$1,570.36
7A632084682 K66AH Iseki Transaxle
7A632084682$1,230.85
7A632084551 K66L Smp Transaxle
7A632084551$1,554.07
7A632084610 K62V Transaxle
7A632084610$955.58
7A632084661 K66AA Transaxle
7A632084661$1,754.59
7A632084840 K62AG Transaxle
7A632084840$1,465.28
7A632084850 K66AT Transaxle
7A632084850$1,375.21
7A632084970 K62Q2 Transaxle
7A632084970$1,292.16
7A632084960 K62M Transaxle
7A632084960$1,427.09
7A632084940 K66AT Transaxle
7A632084940$1,487.57
7A632084860 K62AH Transaxle
7A632084860$1,653.90
K66AD
7A632084650$1,352.07
K66AR
7A632084790$1,539.20
K66AC
7A632084640$1,412.76
K664K
787Q0584590$1,705.48
K62AG
7A632084841$1,371.63
K62AF
7A632084831$1,349.82
K66AP
7A632084880$1,686.25
K66AS
7A632084910$1,472.50
K62A
7A632024000$1,472.50Free shipping · in stock
K66Y
7A632084621Replaces: supersedes 7A632084620$1,265.89
K62AD
7A632084810$1,420.25Don't see your number? We stock the full Tuff Torq line through our distributor. Send us the numbers off your tag and we'll quote the exact unit, usually within the hour.
Use the part finder
K62 & K66 repair kits & components
Kits are matched by model and serial number (Tuff Torq changed internals within the same model code). Model letters below come from Tuff Torq's kit names. When in doubt, send us the label and we'll confirm.
| Kit / part | Fits | Notes |
|---|---|---|
| 1A632099181 | K62A, B, C, E, F, G, J, K | Repair kit |
| 1A632099191 | K62M, Q, V | Repair kit |
| 1A632099171 | K66AA | Repair kit |
| 1A632099221 | K66R; K66A after serial 002076 | Repair kit |
| 1A632099231 | K66C, L, S, Y | Repair kit |
| 1A632099241 | K66AC, B, D, I, M, V | Repair kit |
| 1A632099251 | K66K, M, I, D, B | Seal kit |
| 1A632099301 | K62 / K66 | Transmission seal kit |
| 187Q0599171 | K664E | Repair kit |
| 187Q0599191 | K664L | Repair kit |
| 187Q0599021 | K664C, K | Repair kit |
| 187Q0599011 / 187Q0599001 / 187Q0599201 / 187Q0599211 | K664 E/GA · C/J/K · GAM · L | Seal kits |
| 1A632024860 | K62 / K66 | Center case AB; order with the repair kit |
| 1A632026450 | K62 / K66 with external filter | Oil filter |
Tuff Torq 1A632099230 Repair Kit (K66CLS&Y)
Mfr # 1A632099230
Item # GD-1A632099230
In stock · Free shipping
$358.79/ each$410.04
Tuff Torq 1A632099180 Repair Kit (K62ABCEFGJK
Mfr # 1A632099180
Item # GD-1A632099180
In stock · Free shipping
$373.75/ each$427.14
Tuff Torq 1A632099170 Repair Kit (K66AA)
Mfr # 1A632099170
Item # GD-1A632099170
In stock · Free shipping
$365.78/ each$418.03
Tuff Torq 1A632099210 Repair Kit K66A<002075
Mfr # 1A632099210
Item # GD-1A632099210
In stock · Free shipping
$446.12/ each$509.04
Tuff Torq 1A632099220 Repair Kit (K66R K66A>002076)
Mfr # 1A632099220
Item # GD-1A632099220
In stock · Free shipping
$375.14/ each$428.73
Tuff Torq 1A632099240 Repair Kit (K66ACBDIMV)
Mfr # 1A632099240
Item # GD-1A632099240
In stock · Free shipping
$379.83/ each$434.09
Tuff Torq 187Q0599000 Seal KIT(K664 C )
Mfr # 187Q0599000
Item # GD-187Q0599000
In stock
$56.07/ each$64.08
Tuff Torq 187Q0599030 Repair Kit K664E
Mfr # 187Q0599030
Item # GD-187Q0599030
In stock · Free shipping
$458.43/ each$523.08
Tuff Torq 187Q0599010 Seal KIT(K664 E & G)
Mfr # 187Q0599010
Item # GD-187Q0599010
In stock
$54.00/ each$61.71
Tuff Torq 187Q0599020 Repair Kit (K664C)
Mfr # 187Q0599020
Item # GD-187Q0599020
In stock · Free shipping
$389.59/ each$445.25
Tuff Torq 1A632099250 Seal KIT(K66 Kmidb)
Mfr # 1A632099250
Item # GD-1A632099250
In stock
$57.99/ each$66.27
Tuff Torq 187Q0599121 Repair Kit K664 Gam
Mfr # 187Q0599121
Item # GD-187Q0599121
In stock · Free shipping
$514.84/ each$587.46
Tuff Torq 187Q0599071 Repair Kit K664J
Mfr # 187Q0599071
Item # GD-187Q0599071
In stock · Free shipping
$431.25/ each$492.07
Tuff Torq 187Q0599070 Repair Kit (K664J)
Mfr # 187Q0599070
Item # GD-187Q0599070
In stock · Free shipping
$390.54/ each$446.33
Tuff Torq 187Q0599120 Repair Kit (K664 G)
Mfr # 187Q0599120
Item # GD-187Q0599120
In stock · Free shipping
$431.80/ each$493.49
Tuff Torq 187Q0599200 Seal KIT(K664GA)
Mfr # 187Q0599200
Item # GD-187Q0599200
In stock
$60.92/ each$69.62
Tuff Torq 1A632099221 Repair Kit K66R K66A>002076
Mfr # 1A632099221
Item # GD-1A632099221
In stock · Free shipping
$446.82/ each$522.60
Tuff Torq 187Q0599021 Repair Kit K664CK
Mfr # 187Q0599021
Item # GD-187Q0599021
In stock · Free shipping
$464.63/ each$543.43
Tuff Torq 187Q0599001 Seal Kit K664 CJK
Mfr # 187Q0599001
Item # GD-187Q0599001
In stock
$75.13/ each$87.87
Tuff Torq 187Q0599211 Seal Kit K664 L
Mfr # 187Q0599211
Item # GD-187Q0599211
In stock
$69.85/ each$81.70
Tuff Torq 187Q0599011 Seal Kit K664 E & GA
Mfr # 187Q0599011
Item # GD-187Q0599011
In stock
$68.19/ each$79.76
Tuff Torq 1A632099171 Repair Kit K66AA
Mfr # 1A632099171
Item # GD-1A632099171
In stock · Free shipping
$435.68/ each$509.57
Tuff Torq 187Q0599201 Seal Kit K664GAM
Mfr # 187Q0599201
Item # GD-187Q0599201
In stock
$75.71/ each$88.55
Tuff Torq 1A632099181 Repair Kit K62ABCEFGJK
Mfr # 1A632099181
Item # GD-1A632099181
In stock · Free shipping
$445.16/ each$520.66
Tuff Torq 1A632099191 Repair Kit K62MQ & V
Mfr # 1A632099191
Item # GD-1A632099191
In stock · Free shipping
$445.16/ each$520.66
Tuff Torq 1A632099241 Repair Kit K66ACBDIMV
Mfr # 1A632099241
Item # GD-1A632099241
In stock · Free shipping
$452.40/ each$529.13
Tuff Torq 1A632099231 Repair Kit K66CLS & Y
Mfr # 1A632099231
Item # GD-1A632099231
In stock · Free shipping
$427.38/ each$499.86
Tuff Torq 1A632099301 Transmission Seal Kit - K62/66
Mfr # 1A632099301
Item # GD-1A632099301
In stock
$82.99/ each
Fans, pulleys, axles, filters & oil
Tuff Torq 1A632024130 Upper Case K62AD
Mfr # 1A632024130
Item # GD-1A632024130
In stock · Free shipping
$235.22/ each$268.40
Tuff Torq 787A0584600 K664U
Mfr # 787A0584600
Item # GD-787A0584600
In stock · Free shipping
$1,301.16/ each$1,484.69
Tuff Torq 787Q0584560 K664GA Hsq T/a(shipped W/o Oil
Mfr # 787Q0584560
Item # GD-787Q0584560
In stock · Free shipping
$1,331.19/ each$1,521.36
Tuff Torq 787Q0584540 K664GA Hsq T/a(shipped W/o Oil
Mfr # 787Q0584540
Item # GD-787Q0584540
In stock · Free shipping
$1,331.19/ each$1,521.36
Tuff Torq 787Q0584600 K664U
Mfr # 787Q0584600
Item # GD-787Q0584600
In stock · Free shipping
$1,673.51/ each$1,909.57
Tuff Torq 1A632084110 Transaxle Case Kit K62AD
Mfr # 1A632084110
Item # GD-1A632084110
In stock · Free shipping
$354.24/ each$404.19
Tuff Torq 1A632084650 K66A Series Lower Case
Mfr # 1A632084650
Item # GD-1A632084650
In stock · Free shipping
$147.45/ each$168.51
Tuff Torq 187Q0599090 Connector Kit K664CGJ
Mfr # 187Q0599090
Item # GD-187Q0599090
In stock · Free shipping
$154.27/ each$176.02
Tuff Torq 187Q0599080 Connector Kit K664E
Mfr # 187Q0599080
Item # GD-187Q0599080
In stock · Free shipping
$154.27/ each$176.02
Tuff Torq 7A632084930 K66BA
Mfr # 7A632084930
Item # GD-7A632084930
In stock · Free shipping
$1,632.41/ each$1,862.67
Tuff Torq 1A632024860 Center Case AB (order with repair kit)
Mfr # 1A632024860
Item # GD-TUF1A632024860
In stock · Free shipping
$154.30/ each
Tuff Torq 1A632085090 10-Blade Notched Cooling Fan - 8.41"
Mfr # 1A632085090
Item # GD-1A632085090
In stock
$22.99/ each
Tuff Torq 1A632029520 Bypass Release Lever Arm
Mfr # 1A632029520
Item # GD-1A632029520
In stock
$14.18/ each
How to read your Tuff Torq tag
There's a white barcode label on the back of the transaxle (some tractors repeat it under the seat). It carries three numbers:
- Top left: the Tuff Torq part number. 11 characters, e.g. 7A646084181. This identifies the complete unit. Order a replacement by this number.
- Top right: the serial number. Repair kits and internal parts are chosen by serial, because Tuff Torq changed internals within the same model code.
- Bottom right: the OEM part number (John Deere AM/MIA, Husqvarna 5324xxxxx, MTD/Cub Cadet 618-xxxxx). If the top numbers are unreadable, this one gets us there too.
No tag at all? Your tractor's parts manual lists the transaxle under the OEM number, and our finder accepts the tractor model as a last resort.
Enter my numbers Full identification guide →7A646084181Tuff Torq part no.1803-2 07451Serial no.
K46BTModel532 43 83-54OEM part no.
K62 & K66 specifications & compatibility
| K62 | K66 | K664 | |
|---|---|---|---|
| Application | Larger premium yard tractors, estate tractors, light-duty garden tractors | Larger premium yard tractors, estate tractors, light-duty garden tractors | Larger premium 4WD tractors, articulating ride-on mowers |
| Reduction ratio | 26.90:1; 18.65:1 | 37.22:1; 22.19:1 | 37.22:1; 22.19:1 |
| Rated axle torque | 26.90:1 = 294 Nm (217 lb-ft); 18.65:1 = 203 Nm (150 lb-ft) | 37.22:1 = 420 Nm (310 lb-ft); 22.19:1 = 250 Nm (185 lb-ft) | 37.22:1 = 420 Nm (310 ft-lb); 22.19:1 = 250 Nm (185 ft-lb) |
| Max tire | 26.90:1 = 584 mm (23 in); 18.65:1 = 457 mm (18 in) | 37.22:1 = 584 mm (23 in); 22.19:1 = 457 mm (18 in) | 37.22:1 = 584 mm (23 in); 22.19:1 = 457 mm (18 in) |
| Pump / motor | 10/10 cc/rev | 10/10 cc/rev | 10/10 cc/rev |
| Axle shaft | 25.4 mm (1.0 in) | 25.4 mm (1.0 in) | 25.4 mm (1.0 in) |
| Gears | Heat-treated Powder Metal Gears; Heat-treated Steel Gears available option | Heat-treated Steel Gears | Heat-treated Steel Gears |
| Differential lock | Manual differential lock option | Automatic ETC differential lock option; Manual differential lock option | Automatic ETC differential lock option; Manual differential lock option |
| Aux. hydraulics | Available option for power steering, lift, etc.; 6.9 L per minute; 31 bar (450 psi) @ 2,000 rpm | Available option for power steering, lift, etc.; 6.9 L per minute; 31 bar (450 psi) @ 2,000 rpm | Available option for power steering, lift, etc.; 6.9 L per minute; 31 bar (450 psi) @ 2,000 rpm |
| Filter | Available option | Available option | Available option |
| Dry weight | 23 kg (50.7 lb) | 23 kg (50.7 lb) | 23 kg (50.7 lb) |
K62 & K66 questions we get every week
My tractor says John Deere / Husqvarna / Cub Cadet, not Tuff Torq. Is this the right place?
Yes. The K62 / K66 in your machine is made by Tuff Torq; the mower brand just gives it its own part number. Send us that OEM number or the Tuff Torq number from the transaxle's ID label and we'll match it.
Which Tuff Torq transaxle fits my John Deere, Husqvarna, Craftsman or Cub Cadet?
Look up your mower by brand and model: John Deere · Husqvarna & Craftsman · Cub Cadet, MTD & Troy-Bilt · Simplicity, Snapper & Massey Ferguson · Dixie Chopper, Toro & Exmark. Each table shows the Tuff Torq unit your model uses and the OEM number it replaces.
What's the difference between a K62 and a K66?
Both use 10 cc pumps and motors and 1-inch axles. The K66 has steel gears as standard, higher ratios (up to 37.22:1) and more axle torque (310 lb-ft vs 217 lb-ft), plus an automatic differential-lock option. Match the model and part number on your label; the two aren't interchangeable without OEM approval.
What oil does a K62 / K66 take?
Tuff Torq recommends its Tuff Tech hydrostatic drive fluid (187Q0899000, 3 L). Never use ATF. If your machine's manual names a different oil, follow the manual.
Where do I find the Tuff Torq part number?
On the ID label on the transaxle case, usually on top or on the side near the input pulley. It shows the model (for example K57R) and an 11-digit part number (for example 7A646084020). Our part number guide shows where to look on each series.
More Tuff Torq
K46 Transaxles, Repair Kits & Parts
K57 Transaxles & Repair Kits
K58 Transaxles & Parts
K71 & K72 Transaxles & Parts
T40 & TL-200 Transaxles & Parts
TZ & TZT Zero-Turn Transaxles & Parts
KPL & DUP Pumps & Pump Parts
Repair Kits (All Models)
Oil, Filters & Oil Change KitsQuestions? Call (646) 666-7225, Mon–Fri 7:00am–6:00pm ET, or email support@rfqqq.com.