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MTD 665 lawn tractor Parts
Here are the diagrams and repair parts for MTD 665 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 665 Riding Mowers & Tractors
Drive diagram
Hex Screw
Part #710-1068Replaced by #710-1266
Manufacturer substitutionThis part replaces 710-1068. Substitute parts can look different from the original.In Stock$9.0750% OFF Was : $17.97
Qty
Mtd Lawn Tractor Gauge Wheel
Part #734-0973Replaced by #734-06265
Manufacturer substitutionThis part replaces 734-0973. Substitute parts can look different from the original.In Stock$39.74QtyDeck "f" diagram
Spindle Assembly
Part #618-0138Replaced by #918-0138C
Manufacturer substitutionThis part replaces 618-0138. Substitute parts can look different from the original.In Stock$193.52QtyLawn & Garden Equipment Screw
Part #710-1238Replaced by #710-1238A
Manufacturer substitutionThis part replaces 710-1238. Substitute parts can look different from the original.This item is not returnableIn Stock$7.86QtyHnge Mtg Br
Part #703-1693Replaced by #703-1693A
Manufacturer substitutionThis part replaces 703-1693. Substitute parts can look different from the original.In Stock$33.07QtyTransaxle diagram
Brake Spring
Part #732-0722AReplaced by #932-0722A
Manufacturer substitutionThis part replaces 732-0722A. Substitute parts can look different from the original.In Stock$19.40QtySpacer Shield
Part #738-0347Replaced by #938-0347
Manufacturer substitutionThis part replaces 738-0347. Substitute parts can look different from the original.This item is not returnableIn Stock$18.5810% OFF Phone Price : $20.58QtyDrive diagram
Plly-var Sp
Part #717-0800AReplaced by #917-0800A
Manufacturer substitutionThis part replaces 717-0800A. Substitute parts can look different from the original.In Stock$255.86$12.00 OFF Phone Price : $267.86QtyLawn Mower Flange Bearing
Part #741-0487AReplaced by #741-0487C
Manufacturer substitutionThis part replaces 741-0487A. Substitute parts can look different from the original.This item is not returnableIn Stock$10.7116% OFF Phone Price : $12.71QtyLawn Tractor Engine Exhaust Manifold Gasket
Part #721-0460Replaced by #721P0460
Manufacturer substitutionThis part replaces 721-0460. Substitute parts can look different from the original.This item is not returnableIn Stock$9.2010% OFF Phone Price : $10.20Qty
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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