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Model # 320 Official MTD rear engine riding mower
Here are the diagrams and repair parts for Official MTD 320 rear engine riding mower, as well as links to manuals and error code tables, if available.
Owner’s manualBy Schematic
By Part
SELECT DIAGRAM
Browse Parts for
320 Riding Mowers & Tractors
#15
Deck/spindle/belt/blade diagram
Lawn & garden equipment hex flange nut (replaces 753-05549, 912-0417a)
Part #712-0417A
$8.24 |
11% OFF Phone Price : $9.24
In Stock
#15
Wheel/tire/rim diagram
Lawn mower dust cover
Part #731-0484A
Replaced by #931-0484A
?
Manufacturer substitution
This part replaces 731-0484A. Substitute parts can look different from the original.
$7.58 |
12% OFF Phone Price : $8.58
Back Order
Lawn tractor screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599)
Part #710-0599
This item is not returnable
$4.91 |
17% OFF Phone Price : $5.91
In Stock
Yard machines lawn & garden equipment bell washer (replaces 936-0242)
Part #736-0242
This item is not returnable
$6.58 |
13% OFF Phone Price : $7.58
Back Order
#10
Wheel/tire/rim diagram
Sears lawn tractor screw
Part #710-0627
This item is not returnable
$6.47 |
13% OFF Phone Price : $7.47
In Stock
#29
Idler bracket/frame diagram
Idler pulley
Part #756-0981A
Replaced by #756-04224
?
Manufacturer substitution
This part replaces 756-0981A. Substitute parts can look different from the original.
$24.96 |
19% OFF Phone Price : $30.96
In Stock
#5
Drive shaft/housing diagram
Brake assembly
Part #661-0006
Replaced by #961-0006
?
Manufacturer substitution
This part replaces 661-0006. Substitute parts can look different from the original.
$47.13 |
11% OFF Phone Price : $53.13
In Stock
#6
Steering assembly/bumper diagram
Yard machines lawn tractor bolt (replaces 01000668, 1982728, 1983620, 43001, 715326, 910-0253, 9711, b1100046, gw-325284, gw-750a, gw-90012, gw-9711, gw-98068, gw-98-068, gw-b1100046, gw-b70235, gw-m6520008, gw-pt/01395/00, gw-pt/80153/00, gw-t70235, wd-
Part #710-0514
This item is not returnable
$5.33 |
16% OFF Phone Price : $6.33
In Stock
#8
Drive shaft/housing diagram
Puck brake
Part #717-0678
Replaced by #917-0678
?
Manufacturer substitution
This part replaces 717-0678. Substitute parts can look different from the original.
This item is not returnable
$9.67 |
9% OFF Phone Price : $10.67
In Stock
#6
Idler bracket/frame diagram
Ace lawn tractor hex bolt
Part #710-3096
This item is not returnable
$9.93 |
9% OFF Phone Price : $10.93
In Stock
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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: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…
Main causes: faulty battery, bad alternator…
Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…
Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…
Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…
Main causes: shift lever needs adjustment, neutral control needs adjustment…
Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…
Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …
Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…
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 a mandrel assembly on a riding lawn mower
Replace the mandrel assembly if the blade shaft vibrates or doesn't spin.…
Repair difficulty
Time required
30 minutes or less
How to replace the flywheel key on a riding lawn mower
If the engine won't restart after hitting a stump or rock, the problem could be a sheared flywheel key. Follow these ste…
Repair difficulty
Time required
60 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 difficulty
Time required
30 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.
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Check the starter solenoid, starter motor, wiring, battery and engine.…