Part Location Diagram of 398170-00 DeWALT O-ring
See part 58 in the diagram
( Grid squares measure 1x1 inch )

O-ring 398170-00

Manufactured by:
DeWALT
ERP Number:
ERP10172074
Part Number:
398170-00
Original Equipment Manufacturer ?
  Works with your model  D51238!
$5.95
In Stock
Delivers in 3-5 Business Days!
Minimum Quantity of 2 required

A Bit Difficult 

30 - 60 mins 

(2 rated repairs) ?
  Works with your model   D51238!

Product Description

?

The o-ring goes next to the spring. This is an authentic part from DeWALT for use in nailers and staplers. This item is available individually and is made out of rubber. You may need an allen wrench and a set of pliers when replacing this part. It will need to be replaced if it becomes broken.

Frequently Purchased Together

?

Troubleshooting

This part works with the following brands:
  • DeWALT
This part works with the following products:
  • Nailer
  • Miscellaneous

Questions & Answers

?

Our customer Service team is at the ready daily to answer your part and product questions.

We're sorry, but our Q&A experts are temporarily unavailable.
Please check back later if you still haven't found the answer you need.

Ask our Team

We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.

Does this fit my product?

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.

A Bit Difficult 

30 - 60 mins 

(2 rated repairs) ?
  • 1
Sort by:  
Sorry, we couldn't find any existing installation instruction that matched.

Air blowing out of head of cap assembly

Jerry from Lancaster, South Carolina

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Parts Used:
174053, 174054, 398170-00, 398169-00
Removed 4 cap screws, popped off cap removed 2 orings and seal valve, put in new valve and orings greased the o rings re assembled cap Tool works great N66 coil nailer
Did you find this story helpful?
Thank you for voting!

Piston driver assembly was broken

Jody from Bethel, Alaska

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
1. Disassembled the piston assembly.
2. Lubed the elastomer parts that were for replacement .
3. Reassembled the nailer.
4. Bench tested the with air and nails.
Did you find this story helpful?
Thank you for voting!
  • 1