Tuff Torq T40J transaxle for John Deere MIA10910 beneath a silver robotic alien with glowing blue eyes

John Deere MIA10910 Transaxle — Tuff Torq T40J 768T2024011

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Replace your John Deere MIA10910 hydrostatic transaxle with a new Tuff Torq T40J assembly. Manufacturer part number 768T2024011 is offered for select John Deere D Series, LA Series and other riding lawn tractors equipped with the matching transmission. This complete rear transaxle drives both rear wheels from one assembly.

Match the numbers on your original transmission before ordering. The mower model, full product identification number and transaxle barcode label provide a stronger fitment check than deck size or appearance alone.

Part Numbers and Cross-References

Reference	Part Number
John Deere	MIA10910
Tuff Torq — listed assembly	768T2024011
Tuff Torq — interchangeable reference	768T2024010
Transmission model	T40J

Tuff Torq confirms that 768T2024010 and 768T2024011 are interchangeable T40J units. Match the complete assembly number when comparing replacements.

John Deere Lawn Tractor Applications

The seller lists the following applications for this assembly. Confirm your tractor's original transmission number and any serial-number restrictions before purchasing.

D Series: D110, D120, D125, D130 and D155
D140: seller specifies tractor serial numbers below 810000
LA Series: LA110, LA115, LA120, LA125, LA135, LA145 and LA155
Additional models: 105, 107S, 115 and 125
X Series applications listed by the seller: X110, X120, X125 and X145

D140 fitment note: The seller's stated range excludes serial number 810000 and higher. For a tractor at or above that number, confirm the required assembly in the serial-specific John Deere parts catalog before ordering.

Product Details

Manufacturer: Tuff Torq
Transmission model: T40J
Type: Hydrostatic lawn tractor transaxle
Configuration: One complete rear drive assembly serving both rear wheels
Condition: New, represented by the seller as genuine Tuff Torq
Oil: Ships prefilled, according to the seller

How to Confirm Your Transaxle

Record the mower's full model and product identification number from its identification plate.
Locate the Tuff Torq barcode label on the original transaxle and photograph the entire label.
Check the 11-digit assembly number against 768T2024011 or 768T2024010 and look for the John Deere reference MIA10910 where shown.
Compare the axle ends, wheel attachment, mounting points, control linkage, brake linkage, bypass control, pulley and cooling fan with the replacement photographs.

The Tuff Torq assembly number identifies the complete unit. A number cast into the aluminum housing may identify a shared housing component, so use the barcode label when checking compatibility.

Is T40J the Same as K46?

The T40J shares some components with the K46 family, but that does not establish interchangeability between complete assemblies. For this replacement, use the T40J designation together with the full manufacturer number and John Deere MIA10910 reference.

Need help checking the match? Contact PTO Direct USA with your mower model, full product identification number and clear photographs of the original transaxle label. Fitment support before and after purchase.

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