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MTD 668 lawn tractor Parts
Here are the diagrams and repair parts for MTD 668 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 668 Riding Mowers & Tractors
Wheel assembly diagram
Ball Bearing
Part #741-0569Replaced by #941-0569
Manufacturer substitutionThis part replaces 741-0569. Substitute parts can look different from the original.In Stock$42.40
Qty
Foot Pad
Part #735-0196Replaced by #735-0239A
Manufacturer substitutionThis part replaces 735-0196. Substitute parts can look different from the original.In Stock$22.3721% OFF Phone Price : $28.37
QtyShield Bolt
Part #738-0373Replaced by #938-0373
Manufacturer substitutionThis part replaces 738-0373. Substitute parts can look different from the original.This item is not returnableIn Stock$13.9713% OFF Phone Price : $15.97QtyTransaxle diagram
Extension Spring
Part #732-04050AReplaced by #732-04050D
Manufacturer substitutionThis part replaces 732-04050A. Substitute parts can look different from the original.In Stock$52.08QtyTransmission diagram
Pin
Part #714-0209Replaced by #914-0209
Manufacturer substitutionThis part replaces 714-0209. Substitute parts can look different from the original.This item is not returnableIn Stock$29.84QtySteering wheel diagram
Lawn Tractor Hex Bolt
Part #710-0805Replaced by #710-0805A
Manufacturer substitutionThis part replaces 710-0805. Substitute parts can look different from the original.This item is not returnableIn Stock$7.86QtySpindle assembly diagram
Bracket Stabilizer
Part #783-04211Replaced by #783-04211-0637
Manufacturer substitutionThis part replaces 783-04211. Substitute parts can look different from the original.In Stock$45.69QtyBrake assembly diagram
Needle Bearing
Part #741-0335Replaced by #941-0335
Manufacturer substitutionThis part replaces 741-0335. Substitute parts can look different from the original.This item is not returnableIn Stock$28.0518% OFF Phone Price : $34.05QtySteering wheel diagram
Pivot Bar
Part #683-0002AReplaced by #753-0642-0637
Manufacturer substitutionThis part replaces 683-0002A. Substitute parts can look different from the original.In Stock$133.088% OFF Phone Price : $145.08QtySeat diagram
Switch
Part #725-1303Replaced by #925-1303
Manufacturer substitutionThis part replaces 725-1303. Substitute parts can look different from the original.In Stock$11.5515% OFF Phone Price : $13.55Qty
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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