- Kenmore refrigerator water filters
- Whirlpool refrigerator water filters
- Samsung refrigerator water filters
- GE refrigerator water filters
- LG refrigerator water filters
- Frigidaire refrigerator water filters
- KitchenAid refrigerator water filters
- Maytag refrigerator water filters
- Kenmore Elite refrigerator water filters
- Estate refrigerator water filters
- GE Profile refrigerator water filters
- Amana refrigerator water filters
- Bosch refrigerator water filters
- Dacor refrigerator water filters
- Electrolux refrigerator water filters
Top DIY repair help
View All Repair Categories
Appliances
Lawn & Garden
Power Tools
Home Improvement
Sports & Leisure
Heating & Cooling
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
Engine diagram
Cable Clamp
Part #751B213146Replaced by #690798
Manufacturer substitutionThis part replaces 751B213146. Substitute parts can look different from the original.In Stock$32.43
Qty
Transaxle 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$52.08QtySteering wheel diagram
Retainer Plate
Part #17198AReplaced by #783P08577A
Manufacturer substitutionThis part replaces 17198A. Substitute parts can look different from the original.In Stock$13.57QtyTransaxle diagram
Lock Washer
Part #736-0329Replaced by #936-0329
Manufacturer substitutionThis part replaces 736-0329. Substitute parts can look different from the original.This item is not returnableIn Stock$8.20QtySpindle assembly diagram
Chute Asm-co
Part #731-1032BReplaced by #631-05229
Manufacturer substitutionThis part replaces 731-1032B. Substitute parts can look different from the original.In Stock$108.8610% OFF Phone Price : $120.86
QtyEngine diagram
Lawn & Garden Equipment Cable Tie
Part #725-0157Replaced by #726-0178
Manufacturer substitutionThis part replaces 725-0157. Substitute parts can look different from the original.This item is not returnableIn Stock$25.35QtyLawn Tractor Wheel Rim
Part #634-0172Replaced by #934-0172A-0662
Manufacturer substitutionThis part replaces 634-0172. Substitute parts can look different from the original.In Stock$193.62QtyBlades diagram
Deck Brake B
Part #17116Replaced by #97116
Manufacturer substitutionThis part replaces 17116. Substitute parts can look different from the original.In Stock$63.259% OFF Phone Price : $69.25QtySeat diagram
Spring
Part #732-0735Replaced by #732-0735A
Manufacturer substitutionThis part replaces 732-0735. Substitute parts can look different from the original.This item is not returnableIn Stock$35.64QtyTransaxle diagram
Extension Spring
Part #732-04076Replaced by #732-04076A
Manufacturer substitutionThis part replaces 732-04076. Substitute parts can look different from the original.This item is not returnableIn Stock$45.42Qty
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.…
Parts & More
Electric Cooktop
Electric Range
Front-Engine Lawn Tractor
Gas Snowblower
Lcd Television
Parts
Upright Freezer