Product Information
Description:
O-rings are made to contain thousands of PSI pressure by creating a seal between two or more parts. O-ring measurements are defined by the inside diameter and the thickness. Of the many causes for O-Ring failure, the most common among power tools are: • Extrusion and Nibbling • O-ring has ragged, tattered edges. These are commonly caused by pressure spikes which shear off tiny “bites” from the o-ring, or caused by clearance gaps. • Abrasion • One or both sides of the o-ring appear rough and slightly flattened. Commonly caused by a contact surface that it too rough, contains grit or is too smooth to allow lubrication. • Over Compression • O-ring is flattened on both sides and may have a “ring” split along its length. Commonly caused by excessive pressure or heat. • Heat Hardening • O-ring has a pitted or cracked surface, and often is flattened on both sides. Caused by temperature exceeding o-ring capacity. • Weather/Ozone Cracking • O-ring is covered in small surface cracks. Caused by exposure to ozone, UV rays and air pollution. Excessive seal stretching causes similar cracking. |
Frequently Purchased With
Compatibility
This part is compatible with the following machines:
the 14 compatible machines
Products Compatibility
This item works with the following types of products:
- • Nailer
Questions & Answers for O-ring
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Repair Instructions: Submitted by Customers Like You
Tool Type:
Nailer
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Wrench Set
nail gun leaking air
replaced the bad O rings and saved $200
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Tool Type:
Nailer
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Wrench Set
o-rings
Took it apart cleaned it put it back together
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Tool Type:
Nailer
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Socket set, Wrench Set
leaked air
removed trigger valve and replaced with new one and replaced all the o'rings except one the new o'ring i ordered was to small re used the old one.
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Tool Type:
Nailer
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers, Torx set, snap ring pliers
Nailer was leakkng air & wouldn't fire.
Took it apart, cleaned it up. Replaced all the o-rings & seals. Pretty simple repair. The parts diagram on your website was perfect. Helped me order the correct parts.
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Tool Type:
Nailer
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Socket set, Allen head to fit in socket
Would not hold air pressure
Watched YouTube video of a guy repairing the same nail gun. Took it apart and replaced o rings from a kit I ordered online, made for my nai
Gun.
Gun.
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Tool Type:
Nailer
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Allen wrench
Nailer would not fire. Was leaking air in multiple places
Nailer was leaking air and would not fire. I first removed the back cover and replaced all of the clear (yellow) o rings which were deteriorated and put it all back together. Was still leaking air around d trigger. I ordered a new trigger assembly and replaced it. Works great now
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Tool Type:
Nailer
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
, Allen wrench
Blown o-ring 2 of them
You Tube was a big help and the diagram that ereplacement parts offers on it's web site was a big help,so thank you ereplacementparts.com
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Tool Type:
Nailer
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers, Wrench Set
Leaking air from nose of nailer
Removed deteriorated rings easily replaced. Had bought another nailer from pawn shop for parts but fixed that one also-same problem!
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Tool Type:
Nailer
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Socket set, Impact driver, Allen head sockets
Air leaking from the trigger and the tip.
Disassembled the framing nailer and installed O-rings. Reassembled and tested.
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Tool Type:
Nailer
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
, Plastic mallet, allen wrench
Large air leak out front nose of Dewalt nail gun
Remove the screws from the end cap of the nail gun
Remove the worn o-ring from the cylinder and install the new ones
Clean the interior of the gun and oil it
Place the top cap of the nail gun back in place
Remove the worn o-ring from the cylinder and install the new ones
Clean the interior of the gun and oil it
Place the top cap of the nail gun back in place
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Reviews
3 Reviews
Average Rating (out of 5):
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The nail gun is working just like it was new! Thank-You for sending me the right parts to repair it.
The parts I ordered fit perfectly & the nail gun is working excellent.
Guest -
September 26, 2023
Verified Purchase
A perfect O Ring
These DeWalt O Rings are made of a material that decomposes and turns to gel over time requiring replacement. This one I received plus another one I needed was fresh and in perfect condition. Got my framing nailer working again.
Guest -
August 18, 2021
Verified Purchase
Fast delivery
One of the 3 o-rings were not the correct size but I was able to use the original so the repair was successful.
Guest -
November 26, 2021
Verified Purchase
Verified Purchase
eReplacementParts Team
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Product Information