Porter Cable
Power Sander

Model # 503 Official Porter Cable sander

Here are the diagrams and repair parts for Official Porter Cable 503 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 135 parts  |

Drive Pulley 804407
#65

Belt sander diagram

Drive pulley

Part #804407

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

Washer 803496
#254

Belt sander diagram

Washer

Part #803496

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

Cap 803365
#279

Belt sander diagram

Cap

Part #803365

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

Pinion Plate 839053
#268

Belt sander diagram

Pinion plate

Part #839053

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

Screw 803157
#217

Belt sander diagram

Screw

Part #803157

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

Washer 803317
#263

Belt sander diagram

Washer

Part #803317

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

Sears Lock Nut 823254
#258

Belt sander diagram

Sears lock nut

Part #823254

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

Porter Cable Rear Endshield Screw 803685
#235

Belt sander diagram

Porter cable rear endshield screw

Part #803685

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

Adj.spring 690671
#264

Belt sander diagram

Adj.spring

Part #690671

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

Sander Motor Brush Cap 803483
#3A

Belt sander diagram

Sander motor brush cap

Part #803483

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