- This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
- New stock is on the way! On order parts usually ship within 7 business days.
- Item is not in stock and usually ships 10-15 business days from the time you place your order.
- This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
Product Description
?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
?Troubleshooting
- Porter Cable
- Nailer
Customer Part Reviews
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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.
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Porter Cable finish nailer DA250 - leaked air after being on shelf eleven years.
Charles from Berwick, Louisiana
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Wrench set
- Parts Used:
- 904749
Made mistake of taking nail cartridge from gun which was not necessary. Had a little problem getting it back in place.
Wouldn\'t work, air leaking through nailer (dead give away that it\'s the collar)
Rick from Frederick, Maryland
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Parts Used:
- 904749
2. Remove old (broken) collar (by hand....no tools needed)
3. Replace collar (by hand....no tools needed)
4. Reinstall back cover
Losing compression due to broken collar
Randy from PILOT MOUNTAIN, North Carolina
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Parts Used:
- 904749
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 ... Read more Parts.com is my best source for parts not just for power tools but lawnmowers or other various outdoor tools.
Air was leaking from the nailer, would not shoot any nails.
Calvin from Upper Marlboro, Maryland
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Parts Used:
- 904749
Worn seals and o-rings
ronald from brunswick, Georgia
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 15 - 30 mins
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
My nail gun was blowing air from the top port and it was a constant air flow
Donnie from FALL BRANCH, Tennessee
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Wrench set
Leaking air from top of nailer
Matthew from Hutchinson, Kansas
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Parts Used:
- 904749
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
Air blowing out of top of nail gun
Steve from Hawai, Hawaii
Compressed air was blowing through the top
Vincent from San Diego, California
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
Leaking air, would not work
Louis from Pittsgrove, New Jersey
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Nutdriver, Pliers, Screw drivers, Wrench set
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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