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 320 rear engine riding mower

MTD 320 rear engine riding mower Parts

Here are the diagrams and repair parts for MTD 320 rear engine riding mower, as well as links to manuals and error code tables, if available.

By Schematic
By Part
SELECT DIAGRAM
?

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

Browse Parts for 320 Riding Mowers & Tractors

  • Frame Rail Support: Rh for MTD 320 - Part 683-0190A

    Frame/engine duct diagram

    Frame Rail Support: Rh

    Part #683-0190A

    The manufacturer no longer makes this part, and there's no substitute part

  • Steering Cap for MTD 320 - Part 731-1904

    Steering assembly/bumper diagram

    Steering Cap

    Part #731-1904

    The manufacturer no longer makes this part, and there's no substitute part

  • Frame Assembly for MTD 320 - Part 683-0149B

    Frame Assembly

    Part #683-0149B

    The manufacturer no longer makes this part, and there's no substitute part

  • Harness Assembly for MTD 320 - Part 629-0945

    Harness and switch assembly diagram

    Harness Assembly

    Part #629-0945

    The manufacturer no longer makes this part, and there's no substitute part

  • Duct Engine for MTD 320 - Part 731-1945A

    Frame/engine duct diagram

    Duct Engine

    Part #731-1945A

    The manufacturer no longer makes this part, and there's no substitute part

  • Rim for MTD 320 - Part 734-1455A

    Wheel/tire/rim diagram

    Rim

    Part #734-1455A

    The manufacturer no longer makes this part, and there's no substitute part

  • Floor Pad: Lh for MTD 320 - Part 735-0674

    Steering/upper frame cover diagram

    Floor Pad: Lh

    Part #735-0674

    The manufacturer no longer makes this part, and there's no substitute part

  • Shoulder Spacer for MTD 320 - Part 738-0968

    Shoulder Spacer

    Part #738-0968

    The manufacturer no longer makes this part, and there's no substitute part

  • Pivot Plate:  Rear Hood for MTD 320 - Part 783-0451A

    Seat assembly diagram

    Pivot Plate: Rear Hood

    Part #783-0451A

    The manufacturer no longer makes this part, and there's no substitute part

  • Stop Lever for MTD 320 - Part 731-1913

    Shift cam/deck pedal diagram

    Stop Lever

    Part #731-1913

    The manufacturer no longer makes this part, and there's no substitute part

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

Dishwasher
Dryer
Gas Cooktop
Gas Range
Gas Snowblower
Parts
Range Hood
Upright Freezer