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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
Steering diagram
Steering Wheel
Part #731-0220Replaced by #931-0220
Manufacturer substitutionThis part replaces 731-0220. Substitute parts can look different from the original.In Stock$37.43
Qty
Tecumseh air flow diagram
Exhaust Pipe
Part #751-0620Replaced by #751-0620A
Manufacturer substitutionThis part replaces 751-0620. Substitute parts can look different from the original.In Stock$63.2032% OFF Was : $92.94
QtyDeck "h" diagram
Extension Spring
Part #732-0594AReplaced by #932-0594A
Manufacturer substitutionThis part replaces 732-0594A. Substitute parts can look different from the original.In Stock$23.0221% OFF Phone Price : $29.02QtyOil Drain
Part #751-3140Replaced by #951-10517A
Manufacturer substitutionThis part replaces 751-3140. Substitute parts can look different from the original.This item is not returnableIn Stock$34.5115% OFF Phone Price : $40.51QtyDrive diagram
Idler Bracket
Part #17694Replaced by #17694-0637
Manufacturer substitutionThis part replaces 17694. Substitute parts can look different from the original.In Stock$48.00QtyDeck "f" diagram
Spindle Assembly
Part #618-0138Replaced by #918-0138C
Manufacturer substitutionThis part replaces 618-0138. Substitute parts can look different from the original.In Stock$193.52QtySteering diagram
Spacer
Part #750-0535Replaced by #950-0535
Manufacturer substitutionThis part replaces 750-0535. Substitute parts can look different from the original.This item is not returnableIn Stock$8.20QtyOver head valve air flow diagram
Cable Clamp
Part #751B213146Replaced by #690798
Manufacturer substitutionThis part replaces 751B213146. Substitute parts can look different from the original.In Stock$32.43QtyTransmission diagram
Puck Plate
Part #717-0682Replaced by #917-0682
Manufacturer substitutionThis part replaces 717-0682. Substitute parts can look different from the original.In Stock$18.17QtyDeck "f" diagram
Blade
Part #742-0610Get free shipping with Automatic ReorderReplaced by #942-0610A
Manufacturer substitutionThis part replaces 742-0610. Substitute parts can look different from the original.In Stock$30.1217% OFF Phone Price : $36.12Qty
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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