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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  |
Strap Exhaust 40029600
#29A

Fuel tank diagram

Strap exhaust

Part #40029600

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

Pin 8m6x50 50058600
#15

Gearwheel diagram

Pin 8m6x50

Part #50058600

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

Fuel Tank Sub-assy.capac.5ltrs 169201U
#1A

Fuel tank diagram

Fuel tank sub-assy.capac.5ltrs

Part #169201U

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

Rubber Ring 2810002
#28A

Fuel tank diagram

Rubber ring

Part #2810002

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

Camshaft Sub-assy (straight Toothed) 160408DU
#1

Cam shaft diagram

Camshaft sub-assy (straight toothed)

Part #160408DU

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

Plate Between Holder And Crankcase 166206
#9

Dynamo starter diagram

Plate between holder and crankcase

Part #166206

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

Fitting Key A6x4x22 (for Engine With Anti-vibration Device) 50011000
#16A

Flange diagram

Fitting key a6x4x22 (for engine with anti-vibration device)

Part #50011000

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

Dynamo Supporting Plate 40018600
#23

Starter diagram

Dynamo supporting plate

Part #40018600

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

Allen Screw 50053800
Allen screw

Part #50053800

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

Connecting Plate 310120
#41

Fuel tank diagram

Connecting plate

Part #310120

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

Repair guides for front-engine lawn tractors

How to replace a blade clutch cable on a riding lawn mower

How to replace a blade clutch cable on a riding lawn mower

If the blades don't spin on your riding mower when you shift the lever, the blade clutch cable could be broken. Here’s h…

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Repair difficulty
Time required
 30 minutes or less
How to replace the brake interlock switch on a riding lawn mower

How to replace the brake interlock switch on a riding lawn mower

If the engine won’t start even though the brake is on, the brake interlock switch could be at fault. Here’s how to repla…

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Repair difficulty
Time required
 30 minutes or less
How to replace a riding lawn mower blade drive belt

How to replace a riding lawn mower blade drive belt

Replace the blade drive belt if it's broken or won't spin the cutting blades because of wear.…

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Repair difficulty
Time required
 45 minutes or less

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