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MTD
Front-Engine Lawn Tractor

Model # 13AL79SS099 Official MTD tractor

Here are the diagrams and repair parts for Official MTD 13AL79SS099 tractor, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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

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ALL PARTS
Showing 10 of 409 parts  |
Lawn Tractor Deck Belt 954-04060B
#41

Deck/spindle pulley diagram

Lawn tractor deck belt

Part #954-04060B

Replaced by #490-501-Y044

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Manufacturer substitution
This part replaces 954-04060B. Substitute parts can look different from the original.
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$43.08 | 
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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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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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Exhaust Gasket BS-692236
#7

331777-1372-b2 engine diagram

Exhaust gasket

Part #BS-692236

Replaced by #692236

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Manufacturer substitution
This part replaces BS-692236. Substitute parts can look different from the original.
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Lawn Tractor Bearing (replaces 741-04124) 941-04124
#15

Steering/wheel diagram

Lawn tractor bearing (replaces 741-04124)

Part #941-04124

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Yard Machines Lawn & Garden Equipment Nut 712-04064
Yard machines lawn & garden equipment nut

Part #712-04064

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$4.49 | 
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Lawn Tractor Gauge Wheel 734-04155
#57

Deck/spindle pulley diagram

Lawn tractor gauge wheel

Part #734-04155

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Lawn Tractor Flange Bearing (replaces 941-0660) 741-0660A
#34

Steering/wheel diagram

Lawn tractor flange bearing (replaces 941-0660)

Part #741-0660A

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Lawn Tractor Shoulder Bolt (replaces 738-3056) 938-3056
#58

Deck/spindle pulley diagram

Lawn tractor shoulder bolt (replaces 738-3056)

Part #938-3056

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Lawn Tractor Interlock Switch 725-04363
#46

Battery/frame diagram

Lawn tractor interlock switch

Part #725-04363

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