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Murray
Rear-Engine Riding Mower

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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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

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Showing 10 of 305 parts  |
Belt 37X57
#1

Mower housing diagram

Belt

Part #37X57

Replaced by #37X57MA

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Manufacturer substitution
This part replaces 37X57. Substitute parts can look different from the original.

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$36.81 | 
14% OFF Phone Price : $42.81
In Stock
Flange Nut 15X79
#18

Mower housing diagram

Flange nut

Part #15X79

Replaced by #703409

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Manufacturer substitution
This part replaces 15X79. Substitute parts can look different from the original.
$9.27 | 
10% OFF Phone Price : $10.27
In Stock
Hairpin Pin 31X6
#14

Mower housing diagram

Hairpin pin

Part #31X6

Replaced by #703300

?
Manufacturer substitution
This part replaces 31X6. Substitute parts can look different from the original.
This item is not returnable
$6.69 | 
13% OFF Phone Price : $7.69
In Stock
Hairpin Pin 31X4
Hairpin pin

Part #31X4

Replaced by #703300

?
Manufacturer substitution
This part replaces 31X4. Substitute parts can look different from the original.
This item is not returnable
$6.69 | 
13% OFF Phone Price : $7.69
In Stock
Idler Pulley 91178
#6

Mower housing diagram

Idler pulley

Part #91178

Replaced by #420613MA

?
Manufacturer substitution
This part replaces 91178. Substitute parts can look different from the original.
This item is not returnable
$25.18 | 
19% OFF Phone Price : $31.18
In Stock
Housing 55962
#22

Mower housing diagram

Housing

Part #55962

Replaced by #455962MA

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Manufacturer substitution
This part replaces 55962. Substitute parts can look different from the original.
$102.19 | 
11% OFF Phone Price : $114.19
In Stock
Flat Washer 17X195
#71

Motion drive diagram

Flat washer

Part #17X195

Replaced by #17X195MA

?
Manufacturer substitution
This part replaces 17X195. Substitute parts can look different from the original.
$8.09 | 
11% OFF Phone Price : $9.09
In Stock
Bolt 25X7
#51

Body chassis diagram

Bolt

Part #25X7

Replaced by #2828635SM

?
Manufacturer substitution
This part replaces 25X7. Substitute parts can look different from the original.
This item is not returnable
$8.09 | 
11% OFF Phone Price : $9.09
In Stock
Sensor 91031
#1

Electrical system diagram

Sensor

Part #91031

Replaced by #91031SEMA

?
Manufacturer substitution
This part replaces 91031. Substitute parts can look different from the original.
$46.00
In Stock
Tire 55700
#38

Steering diagram

Tire

Part #55700

Replaced by #55700MA

?
Manufacturer substitution
This part replaces 55700. Substitute parts can look different from the original.
$91.68 | 
6% OFF Phone Price : $97.68
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.

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Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

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How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

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How do I fix a flat tire on my riding mower?

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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Why won't my riding mower start?

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

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Why is the steering loose on my riding mower?

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

Read more

Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment…

Read more

Why does my riding mower run rough or misfire?

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

Read more

Why won't my riding mower move?

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

Read more

Why is my riding mower not cutting evenly?

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

Read more

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.

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How to replace a riding lawn mower rear tire

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.…

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Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower blade

How to replace a riding lawn mower blade

If a blade on your mower is dull or bent, replace it following the steps in this repair guide.…

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Repair difficulty
Time required
 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.…

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Repair difficulty
Time required
 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.

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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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.…

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Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine.…

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