DeWalt
Power Sander

Model # DW421 TYPE 1 Official DeWalt 5" palm grip sander

Here are the diagrams and repair parts for Official DeWalt DW421-TYPE-1 5" palm grip sander, 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.

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 48 parts  |

Screw 330019-03
#38

Unit parts diagram

Screw

Part #330019-03

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

Ring 151669-00
#43

Unit parts diagram

Ring

Part #151669-00

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

Sears Drill Motor Brush Spring 445860-00
#4

Unit parts diagram

Sears drill motor brush spring

Part #445860-00

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

Washer 151652-00
#40

Unit parts diagram

Washer

Part #151652-00

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

Black & Decker Field Nut 144956-00
#44

Unit parts diagram

Black & decker field nut

Part #144956-00

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

Baffle 151549-00
#25

Unit parts diagram

Baffle

Part #151549-00

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

Sander On/off Switch 144960-00
#6

Unit parts diagram

Sander on/off switch

Part #144960-00

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

Black & Decker Sander Screw 98012-11
#34

Unit parts diagram

Black & decker sander screw

Part #98012-11

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

Retainer 56194-00
#30

Unit parts diagram

Retainer

Part #56194-00

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

Power Tool Power Cord Strain Relief 330005-01
#13

Unit parts diagram

Power tool power cord strain relief

Part #330005-01

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