Part Location Diagram of 904749 DeWALT COLLAR
See part 112 in the diagram
( Grid squares measure 1x1 inch )

COLLAR 904749

Manufactured by:
DeWALT
ERP Number:
ERP18988007
Part Number:
904749
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

Less than 15 mins 

(49 rated repairs) ?

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Product Description

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Genuine Porter Cable replacement part, this item is sold individually. This part acts as a seal and a spacing collar for the Nail Guns. This is a neoprene part and it has a tendency to deteriorate. It may be a good idea to check on the condition of this part periodically.

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# 904749 replaces these:
904749,

Customer Part Reviews

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4.5
Average Rating (out of 5):
★★★★★
★★★★★
(17 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 

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

Porter Cable finish nailer DA250 - leaked air after being on shelf eleven years.

Charles from Berwick, Louisiana

27 of 27 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Wrench set
Parts Used:
904749
Using allen wrench, opened back end of gun. Found collar in crumbling condition from age and made assumption that this was the problem. Looked up part on ereplacements internet. Ordered collar from ereplacement parts and installed in 20 minutes upon arrival. Make sure you find all the pieces of the old collar. Gun now performs as when new twelve years ago. Part and postage less than $15.

Made mistake of taking nail cartridge from gun which was not necessary. Had a little problem getting it back in place.
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Wouldn\'t work, air leaking through nailer (dead give away that it\'s the collar)

Rick from Frederick, Maryland

11 of 11 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Parts Used:
904749
1. Remove 4 hex head screws holding back cover on
2. Remove old (broken) collar (by hand....no tools needed)
3. Replace collar (by hand....no tools needed)
4. Reinstall back cover
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Losing compression due to broken collar

Randy from PILOT MOUNTAIN, North Carolina

5 of 5 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Parts Used:
904749
Took the 4 allen wrench bolts off the top and removed the broken collar and loose pieces, and put new collar in!
I am a former builder with 35 plus years experience and have learned that nail gun are simple tool to fix rather than replace. I am now totally disabled, but, I still love to piddle with small projects.
eReplacement Parts.com is my best source for parts not just for power tools but lawnmowers or other various outdoor tools.
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Air was leaking from the nailer, would not shoot any nails.

Calvin from Upper Marlboro, Maryland

3 of 3 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Parts Used:
904749
Used allen wrench to remove 4 screws that was holding down the top cap of the nailer from the body of the nailer and removed the head. Once removed the old collar was visible and was broken in two places. Removed old collar, and plastic collar parts that had broken off and inserted the new collar in it\'s place. Place the top back on t he nailer, tightened the allen screws and then tested the nailer. The nailer worked perfectly. Very easy repair.
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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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My nail gun was blowing air from the top port and it was a constant air flow

Donnie from FALL BRANCH, Tennessee

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Wrench set
Parts Used:
904749, 884293
Removed the head assembly from the nail gun to where the air was flowing from and sepeated the parts. In doing this I found the collar was damaged and was broken into multiple pieces. I identified the pieces to order from a parts list online at eReplacement parts. Very simple and easy to use and gave recommendations based on previous repa irs.
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Leaking air from top of nailer

Matthew from Hutchinson, Kansas

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Parts Used:
904749
Removed 4 Allen head bolt from top cover of nailer
Take note of which way collar is facing. One edge is flat the other edge is rounded
Removed old collar
Cleaned out nailer housing of pieces broke off of old collar
Installed new collar
Reinstalled top cover of nailer
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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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Compressed air was blowing through the top

Vincent from San Diego, California

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
Less than 15 mins
Parts Used:
904750, 904749
1. Pull the top of the cylinder off.
2. Removed old collar and seal.
3. Replaced with new collar and seal.
4. Replaced top of head.
5. Test fired.
6. Went to work
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Leaking air, would not work

Louis from Pittsgrove, New Jersey

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Pliers, Screw drivers, Wrench set
Parts Used:
904750, 904749, 884443
1. Took tool apart, full of dirt.
2. Found problem, broken seal, and collar causing nail gun to leak air and not work.
3. Clean entire nail gun, replace broken seal and collar.
4. Lubricated the inside of nail gun and put it together.
5. Put a protective cover on air disconnect to keep dirt out when not in use. ... Read more />6. Suggested to a user, lubricate with a few drops of oil for nail guns and put the protective cover on when not in use.
7. Gun fires well.
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