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MTD 663 lawn tractor Parts
Here are the diagrams and repair parts for MTD 663 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 663 Riding Mowers & Tractors
Steering diagram
Link-drag St
Part #711-1107Replaced by #911-1107
Manufacturer substitutionThis part replaces 711-1107. Substitute parts can look different from the original.In Stock$104.98
Qty
Ball Bearing
Part #741-0524Replaced by #941-0524A
Manufacturer substitutionThis part replaces 741-0524. Substitute parts can look different from the original.This item is not returnableIn Stock$37.6214% OFF Phone Price : $43.62
QtyDrive diagram
Bolt
Part #738-0755Replaced by #938-0755
Manufacturer substitutionThis part replaces 738-0755. Substitute parts can look different from the original.In Stock$27.06QtySteering diagram
Steering Wheel
Part #731-1693Replaced by #931-0027A
Manufacturer substitutionThis part replaces 731-1693. Substitute parts can look different from the original.In Stock$185.38QtyLift diagram
Flat Washer
Part #736-0160Replaced by #936-0160
Manufacturer substitutionThis part replaces 736-0160. Substitute parts can look different from the original.In Stock$29.61QtySteering diagram
Gear
Part #717-0622AReplaced by #717-0622C
Manufacturer substitutionThis part replaces 717-0622A. Substitute parts can look different from the original.In Stock$76.53QtySocket Cap Screw
Part #710-1314Replaced by #710-1314A
Manufacturer substitutionThis part replaces 710-1314. Substitute parts can look different from the original.In Stock$6.9413% OFF Phone Price : $7.94QtyFlange Bearing
Part #741-0706Replaced by #941-0706
Manufacturer substitutionThis part replaces 741-0706. Substitute parts can look different from the original.This item is not returnableIn Stock$12.8413% OFF Phone Price : $14.84QtySkirt Deck
Part #783-0142Replaced by #783-0142-0637
Manufacturer substitutionThis part replaces 783-0142. Substitute parts can look different from the original.In Stock$69.22QtyLock 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$8.20Qty
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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