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MTD
Rear-Engine Riding Mower

Model # 13A226JD099 Official MTD riding lawn mower

Here are the diagrams and repair parts for Official MTD 13A226JD099 riding lawn mower, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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Showing 10 of 224 parts  |
Lawn Tractor 30-in Deck 3-in-1 Blade (replaces 3350) 942-04385
#26

Deck/spindle pulley diagram

Lawn tractor 30-in deck 3-in-1 blade (replaces 3350)

Part #942-04385

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

Part #712-04064

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Lawn Tractor Mandrel Assembly 918-04822A
#1

Deck/spindle pulley diagram

Lawn tractor mandrel assembly

Part #918-04822A

Replaced by #918-04822B

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Manufacturer substitution
This part replaces 918-04822A. Substitute parts can look different from the original.
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Yard Machines Lawn Tractor Flange Nut (replaces 00012173, Wd-129-103) 712-04065
Yard machines lawn tractor flange nut (replaces 00012173, wd-129-103)

Part #712-04065

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Lawn Tractor Ground Drive Belt, 9/16 X 35-1/4-in 954-04331
#35

Transmission/wheels diagram

Lawn tractor ground drive belt, 9/16 x 35-1/4-in

Part #954-04331

Replaced by #954-0430C

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Manufacturer substitution
This part replaces 954-04331. Substitute parts can look different from the original.
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Lawn Tractor Steering Shaft Pinion Gear 717-1554
#13

Steering diagram

Lawn tractor steering shaft pinion gear

Part #717-1554

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Lawn Tractor Flange Bearing (replaces 941-0660) 741-0660A
#21

Steering diagram

Lawn tractor flange bearing (replaces 941-0660)

Part #741-0660A

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Lawn Tractor Interlock Switch 725-04363
#24

Seat/battery diagram

Lawn tractor interlock switch

Part #725-04363

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Lawn Tractor Self-tapping Screw, 5/16-18 X 3/4-in (replaces 01008620) 710-04484
Lawn tractor self-tapping screw, 5/16-18 x 3/4-in (replaces 01008620)

Part #710-04484

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How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

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Why does my riding mower deck vibrate?

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

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Why is the steering loose on my riding mower?

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

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Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

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How do I fix a flat tire on my riding mower?

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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Why is my riding mower leaking oil or gas?

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …

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Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

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Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment…

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Why won't my riding mower move?

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

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