Tuff Torq K664K transaxle (series photo) Click to zoom

Tuff Torq 787Q0584000 K664K Transaxle

MPN 787Q0584000

Replaces Simplicity 1755452YP, Simplicity 1755452

Free shippingIn stockParts

Overview

Genuine, brand-new Tuff Torq 787Q0584000 (K664K) hydrostatic transaxle from the Tuff Torq K62/K66 family. Free shipping to the lower 48 states.

Part details

Tuff Torq part # 787Q0584000
Replaces OEM # Simplicity 1755452YP, Simplicity 1755452
Model K664K

Tuff Torq K664 series specifications

Application 4WD Tractors; Articulating Mowers; Ride-On Mowers; Self-Propelled Industrial Machines
Reduction ratio 37.22:1; 22.19:1
Rated axle torque 37.22:1 = 420 Nm (310 ft-lb); 22.19:1 = 250 Nm (185 ft-lb)
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 or its OEM number. Please confirm with the number on your unit's label.

  • Simplicity: Prestige 2691342-00 (27HP 4WD, 50in), Prestige 2691419-00 / 2691419-01 (27HP 4WD, 50in), Prestige 2691480-00 / 2691480-01 (27HP 4WD, 50in)

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 K664K) and the 11-digit part number. Match 787Q0584000 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. 787Q0584000 is new, genuine Tuff Torq, sold under Tuff Torq's own part number. It is not a rebuilt, used or aftermarket unit.

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.