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MTD 679 lawn tractor Parts
Here are the diagrams and repair parts for MTD 679 lawn tractor, as well as links to manuals and error code tables, if available.
Owner’s manualBy Schematic
By Part
SELECT DIAGRAM
Browse Parts for 679 Riding Mowers & Tractors
Frame and seat diagram
Board-runnin
Part #17770C
The manufacturer no longer makes this part, and there's no substitute part
Transmission diagram
Differential
Part #618-0162
The manufacturer no longer makes this part, and there's no substitute part
Drive diagram
Spring
Part #732-0642
The manufacturer no longer makes this part, and there's no substitute part
Shift diagram
Shift Support
Part #17956
The manufacturer no longer makes this part, and there's no substitute part
Kohler wiring diagram
Adapter Harness
Part #629-0209
The manufacturer no longer makes this part, and there's no substitute part
Shoulder Screw
Part #738-0141
The manufacturer no longer makes this part, and there's no substitute part
Drive diagram
Shift Lever
Part #17705
The manufacturer no longer makes this part, and there's no substitute part
Lift diagram
Knob
Part #08540
The manufacturer no longer makes this part, and there's no substitute part
Deck "h" diagram
Return Stud
Part #738-0999
The manufacturer no longer makes this part, and there's no substitute part
Drive diagram
Brkt-l.h.
Part #17669
The manufacturer no longer makes this part, and there's no substitute part
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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