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Companion 921153501 air compressor Parts
Here are the diagrams and repair parts for Companion 921153501 air compressor, as well as links to manuals and error code tables, if available.
Owner’s manualBy Schematic
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Browse Parts for 921153501 Power Tools
Companion air compressor diagram
Companion Air Compressor Cylinder Head
Part #E100284
The manufacturer no longer makes this part, and there's no substitute part
Companion air compressor diagram
Companion Air Compressor Cooling Fan
Part #E100297
The manufacturer no longer makes this part, and there's no substitute part
Companion air compressor diagram
Companion Air Compressor Quick-connect Hose Coupler
Part #E100307
The manufacturer no longer makes this part, and there's no substitute part
#NI03
All parts diagram
Wheel Kit
Part #E100317
The manufacturer no longer makes this part, and there's no substitute part
Companion air compressor diagram
Valve
Part #E100313
The manufacturer no longer makes this part, and there's no substitute part
Companion air compressor diagram
Cover,mtr
Part #E101076
The manufacturer no longer makes this part, and there's no substitute part
Companion air compressor diagram
Valve
Part #E100023
The manufacturer no longer makes this part, and there's no substitute part
#NI04
All parts diagram
Valve Plate
Part #E101038
The manufacturer no longer makes this part, and there's no substitute part
#NI02
All parts diagram
Piston Kit
Part #E101275
The manufacturer no longer makes this part, and there's no substitute part
Companion air compressor diagram
Isolator
Part #E100305
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 cause: bad check valve…
Main causes: lack of electrical power, check valve failure, bad pressure switch…
Main causes: tank drain valve open or leaking air, leaky air tank, bad safety valve, worn pump seals, bad pump valve pla…
Main causes: bad safety valve, pressure switch failure…
Main cause: faulty output air pressure regulator…
Main causes: rusted air tank, loose air tube fitting connections, bad check valve, leaky safety valve, bad tank drain va…
Main cause: bad air tank pressure gauge…
Main causes: loose air tube fitting connections, bad check valve, faulty safety valve, damaged or corroded air tank, bad…
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 pressure switch
You can replace a broken air compressor pressure switch in about 45 minutes. …
Repair time and Difficulty
45 minutes or less
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 time and Difficulty
45 minutes or less
How to replace an air compressor check valve
You can replace a defective air compressor check valve in about 10 minutes.…
Repair time and Difficulty
15 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.
Find out how to reduce air compressor noise.…
Learn about the possible dangers associated with using an air compressor and how you can reduce the risks of property da…
See how to perform routine maintenance on your oil-lubricated air compressor.…
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