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MTD 677 lawn tractor Parts
Here are the diagrams and repair parts for MTD 677 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 677 Riding Mowers & Tractors
Light Switch
Part #725-0634Replaced by #925-0634
Manufacturer substitutionThis part replaces 725-0634. Substitute parts can look different from the original.In Stock$49.95
Qty
Deck "h" diagram
Spindle Assembly
Part #618-0240Replaced by #918-0240C
Manufacturer substitutionThis part replaces 618-0240. Substitute parts can look different from the original.In Stock$120.639% OFF Phone Price : $132.63
QtyGrille/hood and fender diagram
Throttle Wire
Part #746-0776Replaced by #946-0638
Manufacturer substitutionThis part replaces 746-0776. Substitute parts can look different from the original.In Stock$15.89QtyLift diagram
Hex Jam Nut
Part #712-3066Replaced by #912-3066
Manufacturer substitutionThis part replaces 712-3066. Substitute parts can look different from the original.In Stock$34.32Qty7 speed selector diagram
Flat Washer
Part #736-0226Replaced by #936-0226
Manufacturer substitutionThis part replaces 736-0226. Substitute parts can look different from the original.This item is not returnableIn Stock$29.26QtyTransmission diagram
Jam Nut
Part #712-0273Replaced by #912-0273
Manufacturer substitutionThis part replaces 712-0273. Substitute parts can look different from the original.This item is not returnableIn Stock$8.43QtyLock Washer
Part #736-0158Replaced by #736-0158
Manufacturer substitutionThis part replaces 736-0158. Substitute parts can look different from the original.In Stock$25.82QtyHarness Assembly
Part #629-0305BReplaced by #929-0305E
Manufacturer substitutionThis part replaces 629-0305B. Substitute parts can look different from the original.In Stock$221.175% OFF Phone Price : $233.17QtyPlug:mulch 3
Part #731-1643AReplaced by #OEM-190-116
Manufacturer substitutionThis part replaces 731-1643A. Substitute parts can look different from the original.In Stock$108.3610% OFF Phone Price : $120.36QtySteering diagram
Lawn Mower Flange Bearing
Part #741-0659Replaced by #941-0659
Manufacturer substitutionThis part replaces 741-0659. Substitute parts can look different from the original.This item is not returnableIn Stock$30.77Qty
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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