MTD
Front-Engine Lawn Tractor

Model # 13AB77XS091 Official MTD lawn tractor

Here are the diagrams and repair parts for Official MTD 13AB77XS091 lawn 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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Model diagram and schematic

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Showing 10 of 37 parts  |

Lawn Tractor 42-in Deck Bagging Blade 942-04308
#NI07

Tractor diagram

Lawn tractor 42-in deck bagging blade

Part #942-04308

Replaced by #942-04308A

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Manufacturer substitution
This part replaces 942-04308. Substitute parts can look different from the original.
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$29.65
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Lawn & Garden Equipment Engine Spark Plug 951-10292
#NI19

Tractor diagram

Lawn & garden equipment engine spark plug

Part #951-10292

Replaced by #951-10292A

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Manufacturer substitution
This part replaces 951-10292. Substitute parts can look different from the original.
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This item is not returnable
$5.88
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Troybilt Lawn Tractor Blade Engagement Cable (replaces 946-05124) 946-05124A
#NI10

Tractor diagram

Troybilt lawn tractor blade engagement cable (replaces 946-05124)

Part #946-05124A

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Lawn Tractor 42-in Deck 3-in-1 Blade (replaces 742-0616a, 742-0616a-0637, 942-04126, 942-0616) 942-0616A
#NI09

Tractor diagram

Lawn tractor 42-in deck 3-in-1 blade (replaces 742-0616a, 742-0616a-0637, 942-04126, 942-0616)

Part #942-0616A

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$29.58
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Lawn Tractor Ignition Key 625-05002
#NI16

Tractor diagram

Lawn tractor ignition key

Part #625-05002

Replaced by #925-1745A

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Manufacturer substitution
This part replaces 625-05002. Substitute parts can look different from the original.
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$19.56
9% OFF Phone Price : $21.56
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Lawn & Garden Equipment Engine Oil Filter 951-12690
#NI17

Tractor diagram

Lawn & garden equipment engine oil filter

Part #951-12690

Replaced by #490-201-Y010

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Manufacturer substitution
This part replaces 951-12690. Substitute parts can look different from the original.
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$16.48
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Lawn Tractor Starter Solenoid (replaces 725-06153) 725-06153A
#NI18

Tractor diagram

Lawn tractor starter solenoid (replaces 725-06153)

Part #725-06153A

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Lawn Tractor Deflector Shield 631-04354B
#NI13

Tractor diagram

Lawn tractor deflector shield

Part #631-04354B

Replaced by #631-04354C

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Manufacturer substitution
This part replaces 631-04354B. Substitute parts can look different from the original.
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Lawn Tractor Interlock Switch 725-04363
#NI20

Tractor diagram

Lawn tractor interlock switch

Part #725-04363

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Lawn Tractor Axle Flange Bearing (replaces 741-0516a, 941-0516) 741-0516B
#NI24

Tractor diagram

Lawn tractor axle flange bearing (replaces 741-0516a, 941-0516)

Part #741-0516B

$7.92
11% OFF Phone Price : $8.92
In Stock

Most common symptoms to help you fix your riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun...

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

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

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

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

Main causes: faulty battery, bad alternator...

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

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

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

Most common repair guides to help fix your riding mowers & tractors

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Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine....