Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
DeWalt
Air Compressor

Model # D55151 TYPE 3 Official DeWalt air compressor

Here are the diagrams and repair parts for Official DeWalt D55151-TYPE-3 air compressor, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 67 parts  |
Crank Case 5134772-00
#10

Compressor assy diagram

Crank case

Part #5134772-00

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

Dewalt Nipple 5140028-57
#63

Compressor assy diagram

Dewalt nipple

Part #5140028-57

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

Dewalt Crankshaft 5140028-64
#9

Compressor assy diagram

Dewalt crankshaft

Part #5140028-64

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

Nipple 5140028-20
#65

Compressor assy diagram

Nipple

Part #5140028-20

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

Dewalt Screw 5140028-61
#6

Compressor assy diagram

Dewalt screw

Part #5140028-61

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

Elbow 5140028-59
#74

Compressor assy diagram

Elbow

Part #5140028-59

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

Pin 5130086-00
#39

Compressor assy diagram

Pin

Part #5130086-00

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

Nut 629409-00
#73

Compressor assy diagram

Nut

Part #629409-00

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

Ring 629408-00
#75

Compressor assy diagram

Ring

Part #629408-00

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

Gasket Set 5134664-00
#33

Compressor assy diagram

Gasket set

Part #5134664-00

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.

View all

Why won't my air compressor start with a full air tank?

Main cause: bad check valve…

Read more

Why won't my air compressor build tank pressure?

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

Read more

Why can't I adjust the output air pressure on my air compressor?

Main cause: faulty output air pressure regulator…

Read more

Why doesn't my air compressor's pressure gauge work?

Main cause: bad air tank pressure gauge…

Read more

Why does my air compressor safety valve keep popping open?

Main causes: bad safety valve, pressure switch failure…

Read more

Why does air leak from my air compressor?

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

Read more

Why won't my air compressor tank hold air?

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

Read more

Why is my air compressor not turning on?

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

Read more

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.

View all
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.…

Read more
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. …

Read more
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. …

Read more
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.

View all
How to reduce air compressor noise

How to reduce air compressor noise

Find out how to reduce air compressor noise.…

Read more
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…

Read more
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.…

Read more

Parts & More