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MTD 688 lawn tractor Parts
Here are the diagrams and repair parts for MTD 688 lawn tractor, as well as links to manuals and error code tables, if available.
Owner’s manual
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Browse Parts for 688 Riding Mowers & Tractors
Brake assembly diagram
Thrust Washer
Part #736-0335Replaced by #936-0335
Manufacturer substitutionThis part replaces 736-0335. Substitute parts can look different from the original.This item is not returnableIn Stock$12.46
Qty
Hood 660/665/680/685 diagram
Headlight Lens
Part #731-1099AReplaced by #931-1099A
Manufacturer substitutionThis part replaces 731-1099A. Substitute parts can look different from the original.In Stock$132.788% OFF Phone Price : $144.78
QtySeat diagram
Shoulder Bolt
Part #738-0966Replaced by #738-0966A
Manufacturer substitutionThis part replaces 738-0966. Substitute parts can look different from the original.This item is not returnableIn Stock$8.54QtyBlades diagram
Chute Assembly
Part #731-1032Replaced by #631-05229
Manufacturer substitutionThis part replaces 731-1032. Substitute parts can look different from the original.In Stock$108.8610% OFF Phone Price : $120.86QtySeat diagram
Lawn & Garden Equipment Carriage Bolt
Part #710-0167Replaced by #710-05177
Manufacturer substitutionThis part replaces 710-0167. Substitute parts can look different from the original.This item is not returnableIn Stock$8.91QtyWasher
Part #736-0219Replaced by #936-0219
Manufacturer substitutionThis part replaces 736-0219. Substitute parts can look different from the original.This item is not returnableIn Stock$6.49QtySteering wheel diagram
Axle Assembly
Part #683-04016Replaced by #683-04016-0637
Manufacturer substitutionThis part replaces 683-04016. Substitute parts can look different from the original.In Stock$106.58QtySeat diagram
Insulator Nut
Part #726-0320Replaced by #926-0320
Manufacturer substitutionThis part replaces 726-0320. Substitute parts can look different from the original.In Stock$34.32QtyBlades diagram
Lock Washer
Part #736-0158Replaced by #736-0158
Manufacturer substitutionThis part replaces 736-0158. Substitute parts can look different from the original.In Stock$25.82QtyBlades diagram
Belt
Part #754-0440Get free shipping with Automatic ReorderReplaced by #954-0440
Manufacturer substitutionThis part replaces 754-0440. Substitute parts can look different from the original.In Stock$42.5140% OFF Was : $70.76Qty
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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