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Model # 13AL77XT099 Official MTD tractor
Here are the diagrams and repair parts for Official MTD 13AL77XT099 tractor, as well as links to manuals and error code tables, if available.
There are a couple of ways to find the part or diagram you need:
- Click a diagram to see the parts shown on that diagram.
- 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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For DIY troubleshooting advice and repair guides, visit our repair help section.
Model diagram and schematic
SEARCH WITHIN THIS MODEL
ALL PARTS
Showing 10 of 431 parts |
#22
Frame/battery/lift diagram
Troybilt lawn tractor blade engagement cable (replaces 946-05124)
Part #946-05124A
$35.47 |
14% OFF Phone Price : $41.47
In Stock
Lawn & garden equipment cotter pin, 1/4- to 5/16-in
Part #714-04040
This item is not returnable
$3.00 |
25% OFF Phone Price : $4.00
In Stock
#19
Deck/pulley spindle diagram
Lawn & garden equipment hex flange nut (replaces 753-05549, 912-0417a)
Part #712-0417A
$8.24 |
11% OFF Phone Price : $9.24
In Stock
Yard machines lawn & garden equipment lock nut, 5/16-18 (replaces 753-05591)
Part #712-04063
This item is not returnable
$4.39 |
19% OFF Phone Price : $5.39
In Stock
#33
Fuel tank/dash panel diagram
Lawn tractor ignition key
Part #625-04124
Replaced by #925-1745A
?
Manufacturer substitution
This part replaces 625-04124. Substitute parts can look different from the original.
$18.97 |
10% OFF Phone Price : $20.97
In Stock
#16
Steering diagram
Lawn tractor bearing (replaces 741-04124)
Part #941-04124
This item is not returnable
$6.10 |
14% OFF Phone Price : $7.10
In Stock
Yard machines lawn & garden equipment nut
Part #712-04064
This item is not returnable
$4.49 |
18% OFF Phone Price : $5.49
Back Order
Yard machines lawn tractor flange nut (replaces 00012173, wd-129-103)
Part #712-04065
This item is not returnable
$5.27 |
16% OFF Phone Price : $6.27
In Stock
#38
Transmission diagram
Lawn tractor ground drive belt, 7/16 x 71-1/8-in
Part #954-04249A
Replaced by #490-501-M006
?
Manufacturer substitution
This part replaces 954-04249A. Substitute parts can look different from the original.
Get free shipping with Automatic Reorder
$38.44 |
14% OFF Phone Price : $44.44
In Stock
#15
Engine/muffler/shield diagram
Lawn & garden equipment engine fuel filter (replaces 1727491, 1731399, 1820062, 1824053, 1824104, 432625, gw-1727491, gw-b1727491, wd-900-5514, wd-c37554)
Part #951-3013
This item is not returnable
$7.20 |
12% OFF Phone Price : $8.20
In Stock
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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
These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.
How to replace the seat switch on a riding lawn mower
Follow the steps in this guide to install a new riding mower seat switch in about 15 minutes.…
Repair difficulty
Time required
15 minutes or less
How to replace a riding lawn mower spark plug
If the engine is hard to start or if the spark plug electrode is burnt or cracked, take 15 minutes to replace it.…
Repair difficulty
Time required
15 minutes or less
How to replace a riding lawn mower rear tire
Your mower can’t run on a damaged rear tire. Here’s how to install a new one.…
Repair difficulty
Time required
60 minutes or less
Effective articles & videos to help repair your riding mowers & tractors
Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Check the starter solenoid, starter motor, wiring, battery and engine.…