Tuff Torq 787Q0584590 K664K Transaxle

MPN 787Q0584590

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Overview

Genuine, brand-new Tuff Torq 787Q0584590 (K664K) hydrostatic transaxle from the Tuff Torq K62/K66 family. Free shipping to the lower 48 states.

Part details

Tuff Torq part # 787Q0584590
Model K664K
Used on Briggs & Stratton

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.

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 787Q0584590 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. 787Q0584590 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.