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MTD
Riding Mowers & Tractors

Model # 13BQA1ZT099 Official MTD lawn tractor

Here are the diagrams and repair parts for Official MTD 13BQA1ZT099 lawn tractor, as well as links to manuals and error code tables, if available.

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Owner’s manual
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Model diagram and schematic

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Showing 10 of 401 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
#23

Mower deck/pulley spindle 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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This part replaces 942-04244A. Substitute parts can look different from the original.
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Lawn Tractor Ground Drive Belt, 1/2 X 89-3/4-in 954-05027A
#21

Transmission diagram

Lawn tractor ground drive belt, 1/2 x 89-3/4-in

Part #954-05027A

Replaced by #954-05027B

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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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Key Assembly 625-05001
#9

Battery diagram

Key assembly

Part #625-05001

Replaced by #925-1745A

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Manufacturer substitution
This part replaces 625-05001. Substitute parts can look different from the original.
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Ace Lawn & Garden Equipment Self-tapping Bolt, 5/16-18 X 3/4-in (replaces 1724491, 1740496, 1909304, 910-1260a, Gw-7101260) 710-1260A
#7

Mower deck/pulley spindle diagram

Ace lawn & garden equipment self-tapping bolt, 5/16-18 x 3/4-in (replaces 1724491, 1740496, 1909304, 910-1260a, gw-7101260)

Part #710-1260A

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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 Gauge Wheel 734-04155
#41

Mower deck/pulley spindle diagram

Lawn tractor gauge wheel

Part #734-04155

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Lawn Tractor Blade Drive Belt, 1/2 X 108-in 954-05087A
#28

Mower deck/pulley spindle diagram

Lawn tractor blade drive belt, 1/2 x 108-in

Part #954-05087A

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Lawn Tractor Mandrel And Pulley Assembly (replaces 918-06977) 918-06977A
#1

Mower deck/pulley spindle diagram

Lawn tractor mandrel and pulley assembly (replaces 918-06977)

Part #918-06977A

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Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo...

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

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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 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 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 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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