Onan
Lawn & Garden Engine

Model # 6CCK-331E/1887E Official Onan gas engine & generator

Here are the diagrams and repair parts for Official Onan 6CCK-331E-1887E gas engine & generator, 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 321 parts  |

Spring, By-pass Valve 120A140
#4

Oil pump group diagram

Spring, by-pass valve

Part #120A140

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

Screw, Hex Head Cap - Hardened - 5/16"-18 X 1-1/4" - Cylinder Head 110A879

#NI

All parts diagram

Screw, hex head cap - hardened - 5/16"-18 x 1-1/4" - cylinder head

Part #110A879

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

Strap, Ground - Plant To Skid (d) 337A56
#9

Housing,stop button,grnd strap & pressure gauge group diagram

Strap, ground - plant to skid (d)

Part #337A56

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

Screw, Hex Head - 3/8-16 X 1" - Generator Adapter To Engine 800-50
#26

Generator group diagram

Screw, hex head - 3/8-16 x 1" - generator adapter to engine

Part #800-50

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

Spring, Commutator Brush - Dc (30405) 212B1106
#23

Generator group diagram

Spring, commutator brush - dc (30405)

Part #212B1106

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

Kit, Engine Gasket 168K67

#NI

All parts diagram

Kit, engine gasket

Part #168K67

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

Flywheel, Magneto - Less Rope Sheave (replaces 160d616) 160D650
#4A

Crankshaft & flywheel group diagram

Flywheel, magneto - less rope sheave (replaces 160d616)

Part #160D650

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

Fly Assembly, Choke 142-55
#3

Carburetor parts group diagram

Fly assembly, choke

Part #142-55

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

For Carburetor 142a386 (container In Repair Kit #142k371 And #142k387.) (d) 142-356
#9B

Carburetor parts group diagram

For carburetor 142a386 (container in repair kit #142k371 and #142k387.) (d)

Part #142-356

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

Gasket, Oil Base Mounting (replaces #102b8) 102B158
#20

Cylinder block, oil base & gear cover group diagram

Gasket, oil base mounting (replaces #102b8)

Part #102B158

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

Repair guides for bottom-mount refrigerators

How to replace a flipper mullion on a French-door refrigerator

How to replace a flipper mullion on a French-door refrigerator

If the flipper mullion breaks or its heater quits working, replace it in 15 minutes using these 4 easy steps.…

Repair difficulty
Time required
 15 minutes or less
How to replace a door gasket in a French-door refrigerator

How to replace a door gasket in a French-door refrigerator

The door gasket, often called a door seal, seals the gap around the door to keep the cold air in and the warm air out. R…

Repair difficulty
Time required
 15 minutes or less
How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less

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

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.…

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.…