Part Location Diagram of 904747 DeWALT O-RING
See part 110 in the diagram
( Grid squares measure 1x1 inch )

O-RING 904747

Manufactured by:
DeWALT
ERP Number:
ERP18988005
Part Number:
904747
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

15 - 30 mins 

(9 rated repairs) ?

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Product Description

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This o-ring is an authentic manufacturer sourced replacement part designed for use with Porter Cable angle grinders. It is sourced directly from original equipment manufacturer. It is the rubber o-ring for the metal seal. Please refer to appropriate diagram for correct location and application of this item. It is made from durable rubber material and it is sold individually. To complete this repair you will need a hex key also known as an allen wrench.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Porter Cable
This part works with the following products:
  • Nailer
Part# 904747 replaces these:
904747,

Customer Part Reviews

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5.0
Average Rating (out of 5):
★★★★★
★★★★★
(5 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 

15 - 30 mins 

(9 rated repairs) ?
  • 1
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Worn seals and o-rings

ronald from brunswick, Georgia

3 of 3 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Parts Used:
904750, 904749, 904747, 904746
Removed the four screws from the top cover
Removed and replaced the worn parts listed
Cleaned the inside of the gun and oiled it
Screwed the top cover back on
Tested it, works like new
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Leak in top

J from Haddonfield, New Jersey

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Wrench set
Parts Used:
904747, 904746, 904744
Needed a plastic gasket and 2 O-rings. Got the O-rings first and then realized I needed the plastic gasket.. It was obvious to see because the old gasket was in pieces
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Air blowing out of top of nail gun

Steve from Hawai, Hawaii

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Parts Used:
904750, 904749, 904747
Changed out seal and o-ring. Easy and for $38 nailer works better then ever and saved the price of a new gun
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Air blowing through tool

Arlon from Hesston, Kansas

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers
Parts Used:
904753, 904749, 904747, 904752
Took the top off; saw the broken part immediately; replaced other visible o-rings while I was in there.
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Blowing air out to[

Steve from Hawi, Hawaii

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Parts Used:
904750, 904749, 904747
Super simple 4 allen bolts and all good. About $40 in parts and I have a nailer working that would of cost me $150 to replace
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Air leak. Nailer inoperative

Timothy from VIRGINIA BEACH, Virginia

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Parts Used:
904750, 904747
Removed back of gun
Removed broken seal and o-ring
Cleaned all debris
Oiled parts and sealing surface
Installed new parts
Placed back on
Test fired nailgun
Success
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air Venting out top of gun

JASON from JACKSONVILLE, Florida

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Wrench set
Parts Used:
904750, 904747
took top of gun off and after cleaning out bad seal, replaced it and one o ring.
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Air finish nailer leaking air

Larry from Magnolia, Texas

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Parts Used:
904749, 904747
Removed the back cover ( 4 allen head screws ) installed the new O ring and collar, replaced cover and continued with my nailing project.
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Air leaking due to bad seals

Eric from Kenner, Louisiana

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Parts Used:
904749, 904747, 904746
I opened the gun and replaced the parts, closed it back up and used the nailer
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  • 1