Porter Cable
Power Grinder

Model #7400 Porter Cable grinder

Here are the repair parts and diagrams for your Porter Cable 7400 grinder. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

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Showing 10 of 45 parts

Lubricant

#NI04

All parts Diagram

Lubricant

Part #875667

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

Gear Housing

#53

Grinder Diagram

Gear housing

Part #874229

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

Auxiliary Handle

#126

Grinder Diagram

Auxiliary handle

Part #875042

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

HEX NUT, 5/16-18

#125

Grinder Diagram

Hex nut, 5/16-18

Part #862155

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

Screw

#105

Grinder Diagram

Screw

Part #862640

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

Nut

#103

Grinder Diagram

Nut

Part #862641

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

Insulator

#102

Grinder Diagram

Insulator

Part #865321

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

Washer

#115

Grinder Diagram

Washer

Part #802223

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

Power Tool Bearing

#11

Grinder Diagram

Power tool bearing

Part #855284

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

Gear Housing Cover

#53A

Grinder Diagram

Gear housing cover

Part #874253

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