Medium
30-60 minutes
This authentic Hitachi replacement part is compatible with various nailer models. As a flexible piece placed between rigid parts, an O-ring helps create a pressure seal. Often a machine will use multiple sizes of O-ring in different positions, so be sure to use the correct one. Sold individually.
Inner dimension: 63.1 mm
Cylinder O-ring 890443
OEM part for: Metabo HPT (Hitachi)
Part Number: 890443
$4.99
In Stock
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Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This part will fit the following 38 machines
Metabo HPT (Hitachi)
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Show More Compatible Models
This item works with the following types of products:
- Nailer Parts
- Stapler Parts
This part replaces obsolete part #: 877312, 877-312
Customer Part Reviews ?
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just what i needed
the cylinder O -ring worked great... I am still waiting to here back on exhaust valve gasket
Guest -
February 11, 2021
Verified Purchase
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t days ago
Verified Purchase
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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.
leaks air at top and double fire
wayne - July 29, 2019
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set, Nutdriver, picks for \\\'O\\\' rings
1. removed top and replaced head cap and gasket
2. Removed cylinder and replaced 'O' rings
3. removed nose and replaced gasket and piston bumper
4. Cylinder plate did not come out easily but other than that repair went well
2. Removed cylinder and replaced 'O' rings
3. removed nose and replaced gasket and piston bumper
4. Cylinder plate did not come out easily but other than that repair went well
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Nailer was shooting air from the top of the gun.
Rick - June 5, 2018
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Allen Wrenches
Removed the head of the nailer
Removed the piston
Removed and Replaced the head valve
Removed and Replaced the o-ring
Cleaned the cylinder and piston
Installed the piston and head of of the nailer
Hooked the gun to the air line and tested several times
Removed the piston
Removed and Replaced the head valve
Removed and Replaced the o-ring
Cleaned the cylinder and piston
Installed the piston and head of of the nailer
Hooked the gun to the air line and tested several times
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Leak too much air,
Charles - May 14, 2017
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Wrench Set, Allen wrench
Removed the four screws from the top cover
Looked to see what parts I would need to fix the leak.
I ordered about every o-ring and seal in the gun
Replaced all that I ordered
The gun is like new again
Looked to see what parts I would need to fix the leak.
I ordered about every o-ring and seal in the gun
Replaced all that I ordered
The gun is like new again
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Leaking air from head
DAVID - April 28, 2017
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
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Would not shoot
STEVE - February 24, 2017
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
, Allen wrench
Remove the top cap, replace head valve to solve problem, replace o-rings to avoid any leaks. Cleaned and oiled the internal parts.
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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.
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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.
