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Model # 30550H Official Murray rear-engine riding lawn mower
Here are the diagrams and repair parts for Official Murray 30550H rear-engine riding lawn mower, as well as links to manuals and error code tables, if available.
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30550H Riding Mowers & Tractors
#4
Electrical system diagram
Battery
Part #91414
The manufacturer no longer makes this part, and there's no substitute part
#1
Mower housing diagram
Belt
Part #37X57
Replaced by #37X57MA
?
Manufacturer substitution
This part replaces 37X57. Substitute parts can look different from the original.
Get free shipping with Automatic Reorder
$36.81 |
14% OFF Phone Price : $42.81
In Stock
#18
Mower housing diagram
Flange nut
Part #15X79
Replaced by #703409
?
Manufacturer substitution
This part replaces 15X79. Substitute parts can look different from the original.
$9.27 |
10% OFF Phone Price : $10.27
In Stock
Nut
Part #15X100
Replaced by #15X100MA
?
Manufacturer substitution
This part replaces 15X100. Substitute parts can look different from the original.
This item is not returnable
$5.99 |
14% OFF Phone Price : $6.99
In Stock
#41
Steering diagram
Flat washer
Part #17X197
Replaced by #17X197MA
?
Manufacturer substitution
This part replaces 17X197. Substitute parts can look different from the original.
This item is not returnable
$14.39 |
12% OFF Phone Price : $16.39
In Stock
#38
Mower housing diagram
Jackshaft
Part #91921
Replaced by #491921MA
?
Manufacturer substitution
This part replaces 91921. Substitute parts can look different from the original.
This item is not returnable
$29.18 |
17% OFF Phone Price : $35.18
In Stock
#40
Mower housing diagram
Washer
Part #17X166
Replaced by #17X166MA
?
Manufacturer substitution
This part replaces 17X166. Substitute parts can look different from the original.
This item is not returnable
$22.49 |
21% OFF Phone Price : $28.49
In Stock
#17
Electrical system diagram
Switch lmt
Part #91032
Replaced by #91032MA
?
Manufacturer substitution
This part replaces 91032. Substitute parts can look different from the original.
$40.78
In Stock
Lock nut
Part #15X88
Replaced by #704067
?
Manufacturer substitution
This part replaces 15X88. Substitute parts can look different from the original.
This item is not returnable
$6.46
In Stock
#39
Mower housing diagram
Adapter
Part #92466
Replaced by #92466MA
?
Manufacturer substitution
This part replaces 92466. Substitute parts can look different from the original.
$18.26
In Stock
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: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…
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: punctured tire or inner tube, leaky valve stem, damaged wheel rim…
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: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…
Main causes: shift lever needs adjustment, neutral control needs adjustment…
Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …
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 seat switch on a riding lawn mower
Follow the steps in this guide to install a new riding mower seat switch in about 15 minutes.…
Repair difficulty
Time required
15 minutes or less
How to replace a riding lawn mower spark plug
If the engine is hard to start or if the spark plug electrode is burnt or cracked, take 15 minutes to replace it.…
Repair difficulty
Time required
15 minutes or less
How to replace a riding lawn mower rear tire
Your mower can’t run on a damaged rear tire. Here’s how to install a new one.…
Repair difficulty
Time required
60 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.…