Part Location Diagram of 903373 DeWALT BELT
See part 37 in the diagram
Replacing your Porter Cable Sander Polisher BELT
( Grid squares measure 1x1 inch )

BELT 903373

Manufactured by:
DeWALT
ERP Number:
ERP18987939
Part Number:
903373
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!
Minimum Quantity of 2 required

Easy 

Less than 15 mins 

(88 rated repairs) ?

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Product Description

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This small belt controls the random orbit functions of common Porter-Cable palm sanders. If this belt breaks, the sanders will operate poorly and the pad will rotate at a high rate of speed. Sanding functions will be disabled. This belt is a genuine Porter-Cable replacement part. Removing the sanding pad and replacing this belt is an easy repair. This belt is compatible with the Porter Cable sanders listed below.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Porter Cable
This part works with the following products:
  • Sander Polisher
Part# 903373 replaces these:
903373, P903373,

Videos For installing this part.

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Replacing your BELT

Customer Part Reviews

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4.8
Average Rating (out of 5):
★★★★★
★★★★★
(47 Reviews)
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Questions & Answers

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

Less than 15 mins 

(88 rated repairs) ?
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Sorry, we couldn't find any existing installation instruction that matched.

The sanding pad was spinning too fast, out of control.

Craig from Longmont, Colorado

16 of 16 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
903373
Clean excess sawdust from around sanding pad attachment screws. Remove 3 screws attaching pad. Install the new belt on the screw on the plastic base and around the the pad support.
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Old belt broke

Stephen from Oil City, Pennsylvania

5 of 5 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
903373
I took pad off to get to remove the old belt. I then placed the new belt around the belt support, then around the small pulley on the bottom of the housing
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Belt was broke

Henry from Waunakee, Wisconsin

4 of 4 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
903373
1, Removed the pad - 3 screws
2. Clean entire area
3. Installed belt - just walked it on.
4. Reinstalled the pad that was removed in 1.

Make sure the unit is unplugged before starting any repair.
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The orbit belt was worn also the pad

William from Kennedy, New York

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
903373, 151281-09
Remove the 3 screws attaching the old worn pad on and remove the pad. Blow out the inside of the sander to get rid of the sawdust. Remove the old belt, then replace it just as the other was. Install the new pad with the same screws.
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Hook and loop pad screw holes wore out.

David from ROUGEMONT, North Carolina

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
903373, 885119
1. Remove screws from base.
2. Replace orbit belt, no tools required
3. Replace pad by using screws removed previously.
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Drive belt broke and 2 screws fell out of the hook and loop pad.

Virgil from Waupun, Wisconsin

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
903373, 875509, 882187, 877532
Installed the new drive belt and replaced the screws fastening the new hook and loop.
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Sander pad came apart

Richard from The Villages, Florida

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
903373
1.Removed what was left of the sanding pad by removing 3 phillips screws.
2. Installed new random orbit belt.
3. Placed new hook and loop sander pad in position and installed and tightened three phillips
screws.
4. Start Sanding.
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The Hook and loop pad wore out.

James from McDonough, Georgia

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
903373, 876691
1. Removed the old pad.
2. Removed the old belt.
3. Installed the new belt around the pad support and the small housing pulley.
4. Attached the new pad.
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Worn out hook & loop pad

Gary from Philadelphia, Pennsylvania

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
903373, 885119
Sander: Removed screws from the pad, replaced the belt, and fastened the new pad with screws.

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Broken belt and worn out pad

John from Avon Lake, Ohio

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
903373
Unscrew old pad, replace belt and screw on new. Under two minutes
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