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MTD 661 lawn tractor Parts
Here are the diagrams and repair parts for MTD 661 lawn tractor, as well as links to manuals and error code tables, if available.
Owner’s manual
By Schematic
By Part
SELECT DIAGRAM
Browse Parts for 661 Riding Mowers & Tractors
Steering diagram
Steering Wheel
Part #631-0027Replaced by #931-0027A
Manufacturer substitutionThis part replaces 631-0027. Substitute parts can look different from the original.In Stock$185.38
Qty
Grille/ hood and fender diagram
Lawn & Garden Equipment Screw
Part #710-0473Replaced by #710-0473A
Manufacturer substitutionThis part replaces 710-0473. Substitute parts can look different from the original.This item is not returnableIn Stock$6.29QtyLock Washer
Part #736-0119Replaced by #936-0119
Manufacturer substitutionThis part replaces 736-0119. Substitute parts can look different from the original.This item is not returnableIn Stock$7.1612% OFF Phone Price : $8.16
QtySeat and main frame diagram
Bracket
Part #17950Replaced by #17950A-0637
Manufacturer substitutionThis part replaces 17950. Substitute parts can look different from the original.In Stock$33.22QtySeat and main frame diagram
Washer
Part #736-0175Replaced by #936-0175
Manufacturer substitutionThis part replaces 736-0175. Substitute parts can look different from the original.This item is not returnableIn Stock$7.29QtyTransmission 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$12.46QtyHex Nut
Part #712-0158Replaced by #912-0158
Manufacturer substitutionThis part replaces 712-0158. Substitute parts can look different from the original.This item is not returnableIn Stock$5.94QtyDrive diagram
Shift Lever
Part #17630Replaced by #17630A-0637
Manufacturer substitutionThis part replaces 17630. Substitute parts can look different from the original.In Stock$28.09QtyTrsn Sprng
Part #732-0602Replaced by #732-0602A
Manufacturer substitutionThis part replaces 732-0602. Substitute parts can look different from the original.In Stock$19.06QtyTransmission diagram
Drive Shaft
Part #711-1003Replaced by #911-1003
Manufacturer substitutionThis part replaces 711-1003. Substitute parts can look different from the original.In Stock$148.48Qty
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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