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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.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 371 parts  |
Hexagon Nut 50022700
#79

Flange diagram

Hexagon nut

Part #50022700

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

Lever For Speed Control 1610202
#70

Flange diagram

Lever for speed control

Part #1610202

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

Disc 13 50017200
Disc 13

Part #50017200

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

Console With Strap Sub-assy For Fuel Tank, Capacity 9ltrs (only Complete Available) 1611010U
#16A

Fuel tank diagram

Console with strap sub-assy for fuel tank, capacity 9ltrs (only complete available)

Part #1611010U

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

Allen Screw M8x55 50052800
#17

Gearwheel diagram

Allen screw m8x55

Part #50052800

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

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

Circlip 35x1,5 50021100
#49

Flange diagram

Circlip 35x1,5

Part #50021100

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

Hexagon Screw 50030100
#56

Flange diagram

Hexagon screw

Part #50030100

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

Hexagon Nut M8 40028400
#29

Starter diagram

Hexagon nut m8

Part #40028400

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

Symptoms for gas ranges

Why won't my range's gas burner spark or ignite?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure…

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Why isn't my range's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, control system failure, faulty t…

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Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

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Repair difficulty
Time required
 60 minutes or less
How to replace a range spark igniter electrode

How to replace a range spark igniter electrode

Learn how to replace the spark igniter electrode for the surface burners on a gas range or dual-fuel range.…

Read more
Repair difficulty
Time required
 45 minutes or less

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Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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What are the main components of a lawn mower?

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