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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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Browse Parts for30550H Riding Mowers & Tractors

  • Belt 37X65
    #54

    Motion drive diagram

    Belt

    Part #37X65

    Replaced by #37X65MA

    ?
    Manufacturer substitution
    This part replaces 37X65. Substitute parts can look different from the original.
    BEST SELLER

    Get free shipping with Automatic Reorder

    $10.47
    16% OFF Phone Price : $12.47
    In Stock
  • Belt 37X57
    #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
  • Blade 56246E700
    #46

    Mower housing diagram

    Blade

    Part #56246E700

    Replaced by #56246E701MA

    ?
    Manufacturer substitution
    This part replaces 56246E700. Substitute parts can look different from the original.

    Get free shipping with Automatic Reorder

    $27.17
    16% OFF Phone Price : $32.38
    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
    $7.01
    12% OFF Phone Price : $8.01
    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
    $7.01
    12% OFF Phone Price : $8.01
    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
    $26.71
    18% OFF Phone Price : $32.71
    In Stock
  • Hub Cap 94618
    Hub cap

    Part #94618

    Replaced by #94618MA

    ?
    Manufacturer substitution
    This part replaces 94618. Substitute parts can look different from the original.
    In Stock
  • Flat Washer 17X197
    #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
    $15.03
    12% OFF Phone Price : $17.03
    In Stock
  • Switch 24273
    #19

    Electrical system diagram

    Switch

    Part #24273

    Replaced by #5021451SM

    ?
    Manufacturer substitution
    This part replaces 24273. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
  • Spring 165X68
    #32

    Mower housing diagram

    Spring

    Part #165X68

    Replaced by #165X68MA

    ?
    Manufacturer substitution
    This part replaces 165X68. Substitute parts can look different from the original.
    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: 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

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

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

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.

What's the difference between a lawn tractor and a garden tractor?

What's the difference between a lawn tractor and a garden tractor?

Do you know a lawn tractor from a garden tractor? Take a look at the key differences and discover how each handles your …

The best time of day to mow grass (and when you should absolutely not)

The best time of day to mow grass (and when you should absolutely not)

Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…

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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