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MTD
Front-Engine Lawn Tractor

Model # 13AR91PT099 Official MTD tractor

Here are the diagrams and repair parts for Official MTD 13AR91PT099 tractor, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Owner’s manual

Model diagram and schematic

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Showing 10 of 287 parts  |
Lawn & Garden Equipment Cotter Pin, 1/4- To 5/16-in 714-04040
Lawn & garden equipment cotter pin, 1/4- to 5/16-in

Part #714-04040

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Lawn Tractor 46-in Deck Premium 2-in-1 Blade (replaces 742-04244a, 942-04244) 942-04244A
#34

Deck diagram

Lawn tractor 46-in deck premium 2-in-1 blade (replaces 742-04244a, 942-04244)

Part #942-04244A

Replaced by #942-04290A

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Manufacturer substitution
This part replaces 942-04244A. Substitute parts can look different from the original.
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Yard Machines Lawn & Garden Equipment Lock Nut, 5/16-18 (replaces 753-05591) 712-04063
Yard machines lawn & garden equipment lock nut, 5/16-18 (replaces 753-05591)

Part #712-04063

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$4.40 | 
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Lawn Tractor Ignition Key 625-04124
#21

Hood/dash diagram

Lawn tractor ignition key

Part #625-04124

Replaced by #925-1745A

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Manufacturer substitution
This part replaces 625-04124. Substitute parts can look different from the original.
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$19.56 | 
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Yard Machines Lawn & Garden Equipment Nut 712-04064
#21

Pto & battery diagram

Yard machines lawn & garden equipment nut

Part #712-04064

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$4.49 | 
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Toro Lawn & Garden Equipment Carriage Bolt (replaces 753-08024, 910-0451) 710-0451
#29

Seat/fender diagram

Toro lawn & garden equipment carriage bolt (replaces 753-08024, 910-0451)

Part #710-0451

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Lawn Tractor Gauge Wheel 734-04155
#21

Deck diagram

Lawn tractor gauge wheel

Part #734-04155

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Lawn Mower Idler Pulley 753-08068
#39

Deck diagram

Lawn mower idler pulley

Part #753-08068

Replaced by #753-08171

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This part replaces 753-08068. Substitute parts can look different from the original.
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Spindle Assembly 918-04636A
#1

Deck diagram

Spindle assembly

Part #918-04636A

Replaced by #918-04865A

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This part replaces 918-04636A. Substitute parts can look different from the original.
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Lawn Tractor Steering Shaft Pinion Gear 717-1554
#11

Steering/axle diagram

Lawn tractor steering shaft pinion gear

Part #717-1554

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