Medium
30-60 minutes
The exhaust valve fits between the gasket and the head cap. It is made out of plastic and is sold individually. This is an original Hitachi part for use in nailers. When replacing this part a screwdriver, a set of pliers, and a socket set might be required during the installation process. It may become broken and will need to be replaced.
Exhaust Valve (orange) 884110
OEM part for: Metabo HPT (Hitachi)
Part Number: 884110
$6.18
In Stock
Ships within 1 business day 
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Compatibility
This Exhaust Valve (orange) will fit the following 4 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Metabo HPT (Hitachi)
This item works with the following types of products:
- Nailer Parts
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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.
Air leak in upper chamber of air nailer
James - October 27, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench, putty knife and air compressor
Removed exhaust cover and exhaust piece
Removed old gaskets and clean housing and piece of damaged gaskets
Replaced new gaskets and exhaust valve part #884-110
Replaced Head Cap and gasket
Reinstalled all parts and exhaust cover
Removed old gaskets and clean housing and piece of damaged gaskets
Replaced new gaskets and exhaust valve part #884-110
Replaced Head Cap and gasket
Reinstalled all parts and exhaust cover
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The Hitachi nailer NR83A2 (S) would not drive nails all the way in.
Tarael - November 8, 2020
Tool Type
Nailer
Difficulty
Hard
Time
More than 2 hours
Tools Used
Wrench Set, Metric Allen wrench set
Not knowing what I would need before I tore it apart - I ordered a "complete" O-ring set from ebay because it was not available on ereplacementparts.com. It contained all of the orings for the lower part of the gun, and the nylon trigger ball, but not the exhaust on the top. I completely disassembled the gun including the trigger assembly with the exception of the top exhaust head. There were more than 20 o-rings to replace and lube inside. I found two damaged or broken but replaced them all. When it was re-assembed it still did not drive nails all the way. So I took apart the exhaust section and found the exhaust valve cracked and broken. I ordered this and the two gaskets from ereplacementparts.com and replaced them when they came. Now it works fine.
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Nailgun leaked air.
Carlos - January 30, 2018
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Wrench Set, Scraper blade
Took apart and replaced the parts. Reassembled.
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Nailer broke
Jessie - December 13, 2016
👍 1 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Adjustable Wrench
Take out old part put in new ones
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Our 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.
