Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
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 # 550E785 Official Sears diesel engine

Here are the diagrams and repair parts for Official Sears 550E785 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  |
Exhaust Box 40002400
#30AA

Fuel tank diagram

Exhaust box

Part #40002400

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

Pushrod With Shouldered Socket 160907AU
#10

Cam shaft diagram

Pushrod with shouldered socket

Part #160907AU

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

Support For Exhaust Box (for Item No. 30) 1610801
#30BB

Fuel tank diagram

Support for exhaust box (for item no. 30)

Part #1610801

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

Dynamo Bosch 6 Volt, 30 Watt 40018300
#20

Starter diagram

Dynamo bosch 6 volt, 30 watt

Part #40018300

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

Glow Plug Rod-type Beru 40031200
#3

Dynamo starter diagram

Glow plug rod-type beru

Part #40031200

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

Fuel Tank Sub-assy.capac.9ltrs With Cap Screw Item No. 2 279201V
#1H

Fuel tank diagram

Fuel tank sub-assy.capac.9ltrs with cap screw item no. 2

Part #279201V

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

Oilbath-airfilter 40020400
#24A

Fuel tank diagram

Oilbath-airfilter

Part #40020400

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

Reduction Gear 10,4:1 ) 40038800
#60H

Flange diagram

Reduction gear 10,4:1 )

Part #40038800

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

Cap 50043300
Cap

Part #50043300

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

Disc 6,4 50016600
Disc 6,4

Part #50016600

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

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