Onan
Lawn & Garden Engine

Model # 6CCK-330M/1029B Official Onan gas engine & generator

Here are the diagrams and repair parts for Official Onan 6CCK-330M-1029B gas engine & generator, 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 321 parts  |

Pivot, Breaker Arm 160A75
#3

Ignition group diagram

Pivot, breaker arm

Part #160A75

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

Screw, Round Head - 1/4-20 X 1/2" - Spacer (d) 812-148

#NI

All parts diagram

Screw, round head - 1/4-20 x 1/2" - spacer (d)

Part #812-148

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

Base, Oil - 4 U.s. Quarts - Front Drain (d) 102A418
#25A

Cylinder block, oil base & gear cover group diagram

Base, oil - 4 u.s. quarts - front drain (d)

Part #102A418

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

Washer Valve Spring Retainer - Intake Only 110A893
#7

Valve group diagram

Washer valve spring retainer - intake only

Part #110A893

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

Nut And Jet, Nozzle 142-370
#21

Carburetor parts group diagram

Nut and jet, nozzle

Part #142-370

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

Retainer, Main Adjusting Needle 142-46
#22

Carburetor parts group diagram

Retainer, main adjusting needle

Part #142-46

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

Cap, Breather Tube Rubber (a, D) 123B293
#12A

Cylinder block, oil base & gear cover group diagram

Cap, breather tube rubber (a, d)

Part #123B293

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

Muffler, Exhaust (d) 155B484
#39

Fuel system & exhaust group diagram

Muffler, exhaust (d)

Part #155B484

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

Screw, Fillister Head - 1/4-20 X 5/8" - Breaker Box (a, 815-111

#NI

All parts diagram

Screw, fillister head - 1/4-20 x 5/8" - breaker box (a,

Part #815-111

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

Carburetor, Gasoline 142A363
Carburetor, gasoline

Part #142A363

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 minutes or less

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

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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.…