Model # B48M-GA018/3417A Official Onan engine

Here are the diagrams and repair parts for Official Onan B48M-GA018-3417A 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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Showing 10 of 247 parts |

#20

Fuel system diagram

Pre-clner

Part #140-1259

Replaced by #45-083-01-S

This item is not returnable

$7.29 |

12% OFF Phone Price : $8.29

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#13

Fuel system diagram

Element

Part #140-1216

Replaced by #45-083-02-S

This item is not returnable

$25.09 |

19% OFF Phone Price : $31.09

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#11

Ignition diagram

Ignition base

Part #160-1219

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

#11

Starter parts diagram

Armature

Part #191-1039

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

Gear cover oil base and oil pump group diagram

Lawn & garden equipment engine crankshaft oil seal

Part #509-0040

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

#31

Cylinder block diagram

Spring

Part #110-0539

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

#23

Cylinder block diagram

Retainer

Part #110-0893

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

#28E

Cylinder block diagram

Valve insert

Part #110-1824-25

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

#26

Cylinder block diagram

Oil tube

Part #120-0735

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

#21

Crankshaft, flywheel, camshaft and piston diagram

Lawn & garden equipment screw

Part #104-0170

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

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

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Why doesn't my snowblower self propel?

Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

Why does my snowblower engine run rough?

Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets…

Why won't my snowblower throw snow far enough?

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

How do I tune up my snowblower?

Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…

Why won't my snowblower chute turn?

Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…

Why won't my snowblower start?

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

Why does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

Why won't my snowblower clear snow well?

Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, …

Why doesn't my snowblower auger turn?

Main causes: broken shear pins, worn or loose auger drive belt, auger drive cable failure, damaged auger, bad gear case…

Repair guides for gas snowblowers

These step-by-step repair guides will help you safely fix what’s broken on your snowblower.

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How to adjust snowblower engine valve lash

Adjust the engine valve lash on your snowblower to keep the engine starting and running smoothly.…

Repair difficulty

Time required

15 minutes or less

How to replace a snowblower auger drive cable

A loose or snapped auger drive cable can prevent the auger from rotating. Follow this step-by-step guide to replace the …

Repair difficulty

Time required

15 minutes or less

How to replace a snowblower friction disc

The friction disc is one of the components of the drive system. If it's worn or damaged, the snowblower won't self-prope…

Repair difficulty

Time required

15 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 snowblower.

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Top questions about Sears and Sears PartsDirect

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…

Model # B48M-GA018/3417A Official Onan engine

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for gas snowblowers

Why doesn't my snowblower self propel?

Why does my snowblower engine run rough?

Why won't my snowblower throw snow far enough?

How do I tune up my snowblower?

Why won't my snowblower chute turn?

Why won't my snowblower start?

Why does my snowblower stop running after a few seconds?

Why won't my snowblower clear snow well?

Why doesn't my snowblower auger turn?

Repair guides for gas snowblowers

How to adjust snowblower engine valve lash

How to replace a snowblower auger drive cable

How to replace a snowblower friction disc

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

Top questions about Sears and Sears PartsDirect

What are the main components of a lawn mower?

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