Tuff Torq K66AS transaxle (series photo) Click to zoom

Tuff Torq 7A632084800 K66AS Transaxle

MPN 7A632084800

Replaces Simplicity 84003711

Free shippingLow Price GuaranteeIn stockParts

Overview

Genuine, brand-new Tuff Torq 7A632084800 (K66AS) hydrostatic transaxle from the Tuff Torq K62/K66 family. Free shipping to the lower 48 states, and our Low Price Guarantee covers it.

Part details

Tuff Torq part # 7A632084800
Replaces OEM # Simplicity 84003711
Model K66AS

Tuff Torq K66 series specifications

Application Yard Tractor; Estate Tractor; Light-Duty Garden Tractor
Reduction ratio 37.22:1; 22.19:1
Rated axle torque 37.22:1 = 420 Nm (310 lb-ft); 22.19:1 = 250 Nm (185 lb-ft)
Pump / motor displacement 10/10 cc/rev
Axle shaft 25.4 mm (1.0 in)
Brake Internal Wet Disc
Dry weight 23 kg (50.7 lb)

Series data from Tuff Torq. Ratio, pulley, fan and control-arm setup vary by model; match your part number.

Fits these machines

Listed by parts dealers for this part number, its OEM number or its Tuff Torq model code. Please confirm with the number on your unit's label. This unit changed by serial number, so send us your transaxle label before ordering.

  • Simplicity: Conquest 50" garden tractor 25hp 2691675-00, Lawn/garden tractor 2691676-00, Lawn/garden tractor 2691676-01, SYT510 / 8270 Hydro 2WD w/PS 2691690-01

Mower makers sometimes switch transaxles mid-production, so serial number matters. Not on the list? Send us your model and serial and we'll check.

Make sure it fits

Every Tuff Torq unit has an ID label on the case showing the model (like K66AS) and the 11-digit part number. Match 7A632084800 to that label, or to the OEM number in your mower's parts list. Can't read the label? See How to find your Tuff Torq part number, or send us a photo through the Part Finder and we'll confirm the match before you buy.

More K62/K66 units, repair kits and parts: Tuff Torq K62/K66 hub · All Tuff Torq

FAQ

Is this a genuine Tuff Torq part?

Yes. 7A632084800 is new, genuine Tuff Torq, sold under Tuff Torq's own part number. It is not a rebuilt, used or aftermarket unit.

What if I find it cheaper?

Tell us before you order. Under our Low Price Guarantee we beat any advertised, in-stock U.S. price on the same new Tuff Torq part by 5%, comparing delivered prices.

Will it fit my mower?

Fit depends on your exact model and serial number. Match the part number on your unit's label, or send us your mower details and we'll confirm for free.