McCulloch
Lawn & Garden Engine

Model # MC-8 Official McCulloch gas kart engine

Here are the diagrams and repair parts for Official McCulloch MC-8 gas kart 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 117 parts  |

Lever - Inlet Control 55688
#23

Carburetor assembly diagram

Lever - inlet control

Part #55688

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

Wiper - Crankcase Cover Felt 54184
#20

Powerhead assembly diagram

Wiper - crankcase cover felt

Part #54184

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

Diaphragm - Fuel Pump 57274A
#4

Carburetor assembly diagram

Diaphragm - fuel pump

Part #57274A

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

Gasket - Reed Valve Plate 48605
#17

Engine assembly diagram

Gasket - reed valve plate

Part #48605

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

Cover - Crankcase (order Crankcase Cover Assy #57126a) 57126A
Cover - crankcase (order crankcase cover assy #57126a)

Part #57126A

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

Nut - Hex 8-32 100251
#11

Powerhead assembly diagram

Nut - hex 8-32

Part #100251

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

"o" Ring 104523
#23

Powerhead assembly diagram

"o" ring

Part #104523

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

Washer 100003
#29

Powerhead assembly diagram

Washer

Part #100003

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

Carburetor Assemblies (see Parts List 2) 48890A

#NI

All parts diagram

Carburetor assemblies (see parts list 2)

Part #48890A

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

Lockplate 51480
#13

Engine assembly diagram

Lockplate

Part #51480

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.…