Coleman
Air Compressor

Model # M104B250 Official Coleman twin-cylinder electric air compressor

Here are the diagrams and repair parts for Official Coleman M104B250 twin-cylinder electric air compressor, 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 98 parts  |

Air Compressor Compression Nut, 1/2-in 058-0016
#60

Air compressor breakdown diagram

Air compressor compression nut, 1/2-in

Part #058-0016

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

Coleman Air Compressor Piston Ring Kit 054-0112

#NI03

All parts diagram

Coleman air compressor piston ring kit

Part #054-0112

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

Coleman Felt Filter 019-0052
#27

Air compressor breakdown diagram

Coleman felt filter

Part #019-0052

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

Coleman Air Compressor Bearing 051-0043
#8

Air compressor breakdown diagram

Coleman air compressor bearing

Part #051-0043

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

Coleman Air Compressor Carrier Gasket 046-0149
#7

Air compressor breakdown diagram

Coleman air compressor carrier gasket

Part #046-0149

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

Coleman Air Compressor Washer 060-0053
#2

Air compressor breakdown diagram

Coleman air compressor washer

Part #060-0053

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

Coleman Air Compressor Dipstick 056-0019
#16

Air compressor breakdown diagram

Coleman air compressor dipstick

Part #056-0019

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

Air Compressor Compression Nut 058-0017
#79

Air compressor breakdown diagram

Air compressor compression nut

Part #058-0017

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

Regulator Piston 078-0001
#70

Air compressor breakdown diagram

Regulator piston

Part #078-0001

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

Ball, 1/4" 079-0005
#74

Air compressor breakdown diagram

Ball, 1/4"

Part #079-0005

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

Most common symptoms to help you fix your air compressors

Choose a symptom to see related air compressor repairs.

Main causes: tank drain valve open or leaking air, leaky air tank, bad safety valve, worn pump seals, bad pump valve pla…

Main cause: faulty output air pressure regulator…

Main cause: bad air tank pressure gauge…

Main causes: bad safety valve, pressure switch failure…

Main causes: loose air tube fitting connections, bad check valve, faulty safety valve, damaged or corroded air tank, bad…

Main causes: rusted air tank, loose air tube fitting connections, bad check valve, leaky safety valve, bad tank drain va…

Main causes: lack of electrical power, check valve failure, bad pressure switch…

Most common repair guides to help fix your air compressors

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

How to replace an air compressor check valve

How to replace an air compressor check valve

You can replace a defective air compressor check valve in about 10 minutes.…

Repair difficulty
Time required
 15 minutes or less
How to replace an air compressor pressure switch

How to replace an air compressor pressure switch

You can replace a broken air compressor pressure switch in about 45 minutes. …

Repair difficulty
Time required
 45 minutes or less
How to rebuild an air compressor pump

How to rebuild an air compressor pump

If the air compressor won't fill the tank with compressed air, rebuild the pump using these steps in about 45 minutes. …

Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your air compressors

Use the advice and tips in these articles and videos to get the most out of your air compressor.

How to reduce air compressor noise

How to reduce air compressor noise

Find out how to reduce air compressor noise.…

The unseen dangers of air compressors

The unseen dangers of air compressors

Learn about the possible dangers associated with using an air compressor and how you can reduce the risks of property da…

How to maintain an oil-free air compressor

How to maintain an oil-free air compressor

Learn how to maintain an oil-less air compressor for safe and efficient operation.…