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MTD 13AP78XS099 tractor Parts
Here are the diagrams and repair parts for MTD 13AP78XS099 tractor, as well as links to manuals and error code tables, if available.
Owner’s manual
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Browse Parts for 13AP78XS099 Riding Mowers & Tractors
Seat/fender diagram
Lawn Tractor Fender, Left
Part #783-04587D-0691Replaced by #783-04587E-0691
Manufacturer substitutionThis part replaces 783-04587D-0691. Substitute parts can look different from the original.In Stock$472.54$12.00 OFF Phone Price : $484.54
Qty
Deck/spindle assembly diagram
Lawn Tractor Mandrel Cover
Part #783-08510-0637Replaced by #783-08510D-0637
Manufacturer substitutionThis part replaces 783-08510-0637. Substitute parts can look different from the original.In Stock$50.8811% OFF Phone Price : $56.88QtyDeck/spindle assembly diagram
Lawn Tractor Deck Lift Rod Pivot Cup
Part #748-04069Replaced by #748-04069A
Manufacturer substitutionThis part replaces 748-04069. Substitute parts can look different from the original.This item is not returnableIn Stock$10.3016% OFF Phone Price : $12.30QtyTransmission diagram
Lawn & Garden Equipment Lock Washer
Part #936-0169Replaced by #736-0169
Manufacturer substitutionThis part replaces 936-0169. Substitute parts can look different from the original.This item is not returnableIn Stock$5.60QtyTransmission diagram
Lawn & Garden Equipment Flat Washer
Part #936-0185Replaced by #736-0185
Manufacturer substitutionThis part replaces 936-0185. Substitute parts can look different from the original.In Stock$35.14QtySteering diagram
Mtd Lawn Tractor Steering Sector Gear
Part #617-04094Replaced by #617Z04094A
Manufacturer substitutionThis part replaces 617-04094. Substitute parts can look different from the original.$42.23QtyEngine/muffler diagram
Lawn Tractor Muffler Deflector
Part #751-11053AReplaced by #751-11053B
Manufacturer substitutionThis part replaces 751-11053A. Substitute parts can look different from the original.This item is not returnableIn Stock$9.619% OFF Phone Price : $10.61QtyBattery/frame diagram
Frame Assembly
Part #683-05139-0637Replaced by #683-05139A-0637
Manufacturer substitutionThis part replaces 683-05139-0637. Substitute parts can look different from the original.In Stock$314.31QtyTransmission diagram
Lawn Tractor Shift Rod Bearing
Part #731-06894Replaced by #731-06894A
Manufacturer substitutionThis part replaces 731-06894. Substitute parts can look different from the original.In Stock$32.10Qty#NI02
All parts diagram
Harness
Part #925-06321Replaced by #925-06321A
Manufacturer substitutionThis part replaces 925-06321. Substitute parts can look different from the original.In Stock$137.1429% OFF Was : $192.49Qty
RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES
Mtd Lawn Tractor Wheel Cap
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$9.25
10% OFF Phone Price : $10.25
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Lawn Tractor Headlight Bulb
In Stock
$9.65
9% OFF Phone Price : $10.65
Qty
Decal
In Stock
$11.11
Qty
Lawn Mower Decal
In Stock
$35.56
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Decal
In Stock
$14.74
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Decal
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$10.94
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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: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…
Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…
Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…
Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …
Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…
Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…
Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …
Main causes: faulty battery, bad alternator…
Main causes: shift lever needs adjustment, neutral control needs adjustment…
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 starter solenoid on a riding lawn mower
Replace the starter solenoid if it doesn't click when you turn the ignition key.…
Repair time and Difficulty
30 minutes or less
How to replace a riding lawn mower ignition coil
If you're not getting spark from a good spark plug, the problem could be the ignition coil. Follow these step-by-step in…
Repair time and Difficulty
30 minutes or less
How to replace a riding lawn mower fuel filter
Help your mower run better by replacing the fuel filter during your riding mower's annual tune-up.…
Repair time and Difficulty
15 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.
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Learn some of the most common symbols found in a wiring diagram and what they mean.…
Learn how to connect cables safely to jump-start your mower’s battery.…
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