Campbell Hausfeld
Air Compressor

Model #WL660400 Official Campbell Hausfeld oilless air compressor

Here are the diagrams and repair parts for Campbell Hausfeld WL660400 oilless air compressor, as well as links to manuals and error code tables, if available.

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Parts List

Showing 10 of 58 parts

Coupler#35

Oilless air compressor Diagram

Coupler

Part #MP288300AV

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

Hex Nut#17

Oilless air compressor Diagram

Hex nut

Part #ST033500AV

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

Pad#11

Oilless air compressor Diagram

Pad

Part #WL007800AV

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

Tube#9

Oilless air compressor Diagram

Tube

Part #WL011000AP

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

Gasket#7

Single cylinder pump - wl390000 Diagram

Gasket

Part #XA012500AV

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

Bushing#24

Oilless air compressor Diagram

Bushing

Part #ST071407AV

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

AC Cord#29

Oilless air compressor Diagram

Ac cord

Part #EC012601AV

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

Foot#18

Oilless air compressor Diagram

Foot

Part #ST158300AV

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

Air Compressor Safety Valve#23

Oilless air compressor Diagram

Air compressor safety valve

Part #V-215105AV

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

Screw#33

Oilless air compressor Diagram

Screw

Part #ST073273AV

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

Symptoms common to all air compressors

Choose a symptom to see related air compressor repairs.

Main causes: lack of electrical power, check valve failure, bad pressure switch
Main cause: bad air tank pressure gauge
Main cause: faulty output air pressure regulator
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 air pump
Main causes: rusted air tank, loose air tube fitting connections, bad check valve, leaky safety valve, bad tank drain valve
Main causes: tank drain valve open or leaking air, leaky air tank, bad safety valve, worn pump seals, bad pump valve plate

Repair guides common to all 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 difficulty
Time required
 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 difficulty
Time required
 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 difficulty
Time required
 15 minutes or less

Articles and videos common to all air compressors

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

April 24, 2015

How to reduce air compressor noise

How to reduce air compressor noise

Find out how to reduce air compressor noise.

April 21, 2015

How to maintain an oil-lubricated air compressor

How to maintain an oil-lubricated air compressor

See how to perform routine maintenance on your oil-lubricated air compressor.

April 21, 2015

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.