Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number

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.

MTD 665 lawn tractor
By Schematic
By Part
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for 665 Riding Mowers & Tractors

  • Lawn Tractor Cable Tie for MTD 665 - Part 726-0178

    Engine diagram

    Lawn & Garden Equipment Cable Tie

    Part #725-0157

    Replaced by #726-0178

    Info Icon
    Manufacturer substitution
    This part replaces 725-0157. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $25.35
    Minus Item
    Qty
    Plus Item
  • Lawn Tractor Seat Switch for MTD 665 - Part 925-1657A

    Safety Switch

    Part #725-1657A

    Replaced by #925-1657A

    Info Icon
    Manufacturer substitution
    This part replaces 725-1657A. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $33.33
    15% OFF Phone Price : $39.33Info Icon
    Minus Item
    Qty
    Plus Item
  • Lawn Tractor 46-in Deck 3-in-1 Blade for MTD 665 - Part 942-0611A

    Deck "h" diagram

    Lawn Mower Blade

    Part #742-0644

    Replaced by #942-0611A

    Info Icon
    Manufacturer substitution
    This part replaces 742-0644. Substitute parts can look different from the original.
    This item is not returnable
    Get free shipping with Automatic Reorder
    In Stock
    $16.89
    50% OFF Was : $33.54Info Icon
    Minus Item
    Qty
    Plus Item
  • Lawn Tractor 46-in Deck 2-in-1 Blade for MTD 665 - Part 942-0645

    Deck "h" diagram

    Lawn Mower Blade

    Part #742-0645

    Replaced by #942-0645

    Info Icon
    Manufacturer substitution
    This part replaces 742-0645. Substitute parts can look different from the original.
    Get free shipping with Automatic Reorder
    In Stock
    $55.72
    Minus Item
    Qty
    Plus Item
  • Lawn & Garden Equipment Shoulder Screw for MTD 665 - Part 938-0952A

    Shoulder Screw

    Part #738-0952A

    Replaced by #938-0952A

    Info Icon
    Manufacturer substitution
    This part replaces 738-0952A. Substitute parts can look different from the original.
    In Stock
    $12.91
    Minus Item
    Qty
    Plus Item
  • Tank-fuel  1 for MTD 665 - Part 751-0555D

    Seat and main frame diagram

    Fuel Tank

    Part #751-0553

    Replaced by #751-0555D

    Info Icon
    Manufacturer substitution
    This part replaces 751-0553. Substitute parts can look different from the original.
    In Stock
    $159.30
    Minus Item
    Qty
    Plus Item
  • Lawn Tractor Blade Drive Belt for MTD 665 - Part 954-0439

    Belt

    Part #754-0439

    Replaced by #954-0439

    Info Icon
    Manufacturer substitution
    This part replaces 754-0439. Substitute parts can look different from the original.
    Get free shipping with Automatic Reorder
    In Stock
    $71.12
    8% OFF Phone Price : $77.12Info Icon
    Minus Item
    Qty
    Plus Item
  • Exhaust Pipe for MTD 665 - Part 751-0618A

    Single cylinder diagram

    Exhaust Pipe

    Part #751-0618

    Replaced by #751-0618A

    Info Icon
    Manufacturer substitution
    This part replaces 751-0618. Substitute parts can look different from the original.
    In Stock
    $160.34
    Minus Item
    Qty
    Plus Item
  • Mtd Lawn Tractor Variable-speed Pulley, 6.75-in for MTD 665 - Part 656P05011

    Transmission diagram

    Pulley-varia

    Part #656-0059A

    Replaced by #656P05011

    Info Icon
    Manufacturer substitution
    This part replaces 656-0059A. Substitute parts can look different from the original.
    In Stock
    $116.01
    9% OFF Phone Price : $128.01Info Icon
    Minus Item
    Qty
    Plus Item
  • Lawn Tractor Axle Weldment for MTD 665 - Part 753-0642-0637

    Steering wheel diagram

    Pivot Bar

    Part #683-0002A

    Replaced by #753-0642-0637

    Info Icon
    Manufacturer substitution
    This part replaces 683-0002A. Substitute parts can look different from the original.
    In Stock
    $133.08
    8% OFF Phone Price : $145.08Info Icon
    Minus Item
    Qty
    Plus Item

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

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

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

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.

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

Jump-starting a riding lawn mower battery video

Jump-starting a riding lawn mower battery video

Learn how to connect cables safely to jump-start your mower’s battery.…

Parts & More

Bottom-Mount Refrigerator
Canister Vacuum
Chainsaw
Dryer
Front-Engine Lawn Tractor
Gas Line Trimmer
Gas Walk-Behind Mower
Lawn & Garden Engine
Line Trimmer
Parts
Range
Refrigerator
Side-By-Side Refrigerator
Toaster
Upright Freezer
Washer