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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.
Owner’s manual
By Schematic
By Part
SELECT DIAGRAM
Browse Parts for 320 Riding Mowers & Tractors
Steering/upper frame cover diagram
End Rod
Part #723-0156Replaced by #923-0156
Manufacturer substitutionThis part replaces 723-0156. Substitute parts can look different from the original.In Stock$26.06
Qty
Deck/spindle/belt/blade diagram
Pulley
Part #756-0627Replaced by #756-0627D
Manufacturer substitutionThis part replaces 756-0627. Substitute parts can look different from the original.In Stock$38.7513% OFF Phone Price : $44.75
QtyLift arm/upper deck link diagram
Torsion Spring
Part #732-0837
The manufacturer no longer makes this part, and there's no substitute part
Frame/engine duct diagram
Duct Engine
Part #731-1945A
The manufacturer no longer makes this part, and there's no substitute part
Shift cam/deck pedal diagram
Ball Knob
Part #720-0166
The manufacturer no longer makes this part, and there's no substitute part
Wheel/tire/rim diagram
Complete Wheel Assembly
Part #634-0169A
The manufacturer no longer makes this part, and there's no substitute part
Drive shaft/housing diagram
Housing Assembly
Part #618-0072B
The manufacturer no longer makes this part, and there's no substitute part
Drive shaft/housing diagram
Differential
Part #618-0232
The manufacturer no longer makes this part, and there's no substitute part
Steering assembly/bumper diagram
Steering Cap
Part #731-1904
The manufacturer no longer makes this part, and there's no substitute part
Frame/engine duct diagram
Frame Rail Support: Rh
Part #683-0190A
The manufacturer no longer makes this part, and there's no substitute part
RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES
Terminal Cover
In Stock
$19.06
Qty
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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