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MTD 13AD78XS099 tractor Parts
Here are the diagrams and repair parts for MTD 13AD78XS099 tractor, as well as links to manuals and error code tables, if available.
Owner’s manual
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Browse Parts for 13AD78XS099 Riding Mowers & Tractors
Engine/muffler diagram
Briggs & Statton Lawn & Garden Equipment Engine Short Block
Part #592059Replaced by #592059A
Manufacturer substitutionThis part replaces 592059. Substitute parts can look different from the original.In Stock$830.20
Qty
Transmission/wheels diagram
Lawn Mower Lever
Part #647-04266Replaced by #647-04266B
Manufacturer substitutionThis part replaces 647-04266. Substitute parts can look different from the original.In Stock$34.84QtyFrame/battery diagram
Link
Part #783-0678C-4044Replaced by #783-0678C-0637
Manufacturer substitutionThis part replaces 783-0678C-4044. Substitute parts can look different from the original.In Stock$43.9512% OFF Phone Price : $49.95
QtyDeck/spindle assembly diagram
Lawn Tractor Blade Brake, Right
Part #983-05182Replaced by #983-05182B
Manufacturer substitutionThis part replaces 983-05182. Substitute parts can look different from the original.In Stock$189.45QtyDeck/spindle assembly diagram
Lawn Tractor Deck Housing
Part #983-05184-4044Replaced by #983-05184D-0637
Manufacturer substitutionThis part replaces 983-05184-4044. Substitute parts can look different from the original.In Stock$614.50$12.00 OFF Phone Price : $626.50QtyTransmission/wheels diagram
Auto-drive Bracket Assembly
Part #683-04606Replaced by #783-06568A
Manufacturer substitutionThis part replaces 683-04606. Substitute parts can look different from the original.In Stock$57.94QtyTransmission/wheels 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$32.10QtySteering diagram
Lawn Tractor Steering Block
Part #748-04278-0637Replaced by #748-04278
Manufacturer substitutionThis part replaces 748-04278-0637. Substitute parts can look different from the original.In Stock$34.1115% OFF Phone Price : $40.11QtyFrame/battery diagram
Lawn Tractor Shoulder Screw
Part #938-0380Replaced by #738-0380
Manufacturer substitutionThis part replaces 938-0380. Substitute parts can look different from the original.In Stock$39.03QtySeat/fender diagram
Lawn Tractor Fender
Part #783-04587D-4044Replaced by #783-04587E-4044
Manufacturer substitutionThis part replaces 783-04587D-4044. Substitute parts can look different from the original.In Stock$518.03Qty
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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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