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
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Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This Cylinder O-ring will fit the following 38 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Metabo HPT (Hitachi)
Show More Compatible ModelsThis 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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Does this fit my product?Questions & Answers for Cylinder O-ring
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.
Nailer was shooting air from the top of the gun.
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Allen Wrenches
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
Leak too much air,
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Wrench Set, Allen wrench
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
Leaking air from head
Tool Type
Nailer
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Allen wrench
Replaced the worn parts with the new ones. It fires like new again
Would not shoot
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
, Allen wrench
leaks air at top and double fire
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set, Nutdriver, picks for \\\'O\\\' rings
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
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.
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.