Easy
30-60 minutes
This o-ring provides an air-tight seal for the valve. It is a high quality manufacturer sourced replacement part that is designed for use with Hitachi nailers. Over time o-rings tend to get compressed and shrink eventually cracking requiring replacement. It is made from durable rubber and it is sold individually.
Valve O-ring 872821
OEM part for: Metabo HPT
Part Number: 872821
$5.19
Factory Backorder
Date Available: Unknown 
Jump To:
Frequently Purchased Together ?
Compatibility
This Valve O-ring will fit the following 21 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 21 matching models.
Metabo HPT
Show More Compatible Models21 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Metabo HPT
This item works with the following types of products:
- Nailer
- Stapler
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
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?Questions & Answers for Valve O-ring
How do I know if I need this part. I have owned this nailer for many years. A note on the part says "till December 1987". I don't think it's that old but could be. I don't recall taking this part out.
James Ewen
for model number NV45AB
asked on 2023-12-21
Hi Jim,
Thank you for your question. Over time, o-rings tend to get compressed and shrink eventually cracking requiring replacement. If the o-ring shows any of these signs, it will need to be replaced. We hope this helps!
eReplacementParts Team December 21, 2023
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.
Leaks air, doesn't drive staple
Keith - February 11, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Stapler
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
Remove Cap, replaced parts, put cap back on.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Leaking air from head
DAVID - April 28, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Allen wrench
Removed the top of the nail gun, located the worn parts and ordered them.
Replaced the worn parts with the new ones. It fires like new again
Replaced the worn parts with the new ones. It fires like new again
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Leaking air from top and trigger
Mark - April 20, 2020
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Allen wrench
Removed head cap and trigger assembly and installed new head cap valve, exhaust valve, exhaust o-ring and urethane ball.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Nailer was 27 years old and I decided to change the piston and driver as it some times jammed
Jonathan - October 24, 2019
Tool Type
Nailer
Difficulty
Easy
Time
1-2 hours
Tools Used
Socket set, allen wrench
1. Removed top cover exhaust valve screws
2. Removed cylinder head
3. Removed nail feeder (also replaced)
4. Cleaned and reassembled.
5. It is not necessary to remove the top cover for this job.
2. Removed cylinder head
3. Removed nail feeder (also replaced)
4. Cleaned and reassembled.
5. It is not necessary to remove the top cover for this job.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Learn MoreOur product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
