Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Sears
Lawn & Garden Engine

Model # 550E79 Official Sears diesel engine

Here are the diagrams and repair parts for Official Sears 550E79 diesel engine, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 371 parts  |
Grooved Ball Bearing 6301 50014500
#21

Flange diagram

Grooved ball bearing 6301

Part #50014500

The manufacturer no longer makes this part, and there's no substitute part

Switch Lever Sub-assy Consisting Of Item-nos. 31-34 106414BV
#31

Flange diagram

Switch lever sub-assy consisting of item-nos. 31-34

Part #106414BV

The manufacturer no longer makes this part, and there's no substitute part

Strap (for Item No. 30 A) 40029500
#30DA

Fuel tank diagram

Strap (for item no. 30 a)

Part #40029500

The manufacturer no longer makes this part, and there's no substitute part

Spring Washer 50002800
Spring washer

Part #50002800

The manufacturer no longer makes this part, and there's no substitute part

Timing Cover 2711204
#16A

Additional oil tank diagram

Timing cover

Part #2711204

The manufacturer no longer makes this part, and there's no substitute part

Gearwheel With Shaft 167116
#13

Starting handel diagram

Gearwheel with shaft

Part #167116

The manufacturer no longer makes this part, and there's no substitute part

Security Plate 160305
#31

Additional oil tank diagram

Security plate

Part #160305

The manufacturer no longer makes this part, and there's no substitute part

Disc B13 50017300
#50

Flange diagram

Disc b13

Part #50017300

The manufacturer no longer makes this part, and there's no substitute part

Fuel Pipe Betw. Pump And Filter 169104
#15

Fuel tank diagram

Fuel pipe betw. pump and filter

Part #169104

The manufacturer no longer makes this part, and there's no substitute part

Support For Exhaust Box (for Item No. 30 A) 168905A
#30B

Fuel tank diagram

Support for exhaust box (for item no. 30 a)

Part #168905A

The manufacturer no longer makes this part, and there's no substitute part

Repair guides for side-by-side refrigerators

How to replace an ice dispenser motor in a side-by-side refrigerator

How to replace an ice dispenser motor in a side-by-side refrigerator

If your side-by-side refrigerator isn’t churning out ice, replacing the motor could fix the problem. These steps explain…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a defrost heater in a side-by-side refrigerator

How to replace a defrost heater in a side-by-side refrigerator

If frost is building up in the freezer of your side-by-side refrigerator, the defrost heater could be faulty. Follow the…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace an evaporator fan motor in a side-by-side refrigerator

How to replace an evaporator fan motor in a side-by-side refrigerator

If your refrigerator isn't as cold as it should be, it could be that the evaporator fan motor isn't circulating air. Thi…

Read more
Repair difficulty
Time required
 60 minutes or less

Effective articles & videos to help repair your lawn & garden engines

View all
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.…

Read more
What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…

Read more

Parts & More