Medium
15-30 minutes
Genuine Hitachi replacement part, this item is sold individually.
This O-Ring is place in the groove in the piston in all the tool models listed below.
Its purpose is to create a seal in the cylinder, so when the trigger of the tool is activated, will push the driver and piston assembly down and sink the fastener that is being used.
Some of the tools listed offer an O-ring kit that would have all the essential O-rings in it.
Piston O-ring 876174
OEM part for: Metabo HPT (Hitachi)
Part Number: 876174
$4.99
Usually ships in 7 - 12 business days
Leaves our warehouse within 7 - 12 business days
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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 35 machines
Metabo HPT (Hitachi)
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N5008AC/P 7/16" 1" - 2" x 16 Gauge Standard Crown Stapler View Diagrams & Manuals
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NT50A 18Ga Brad Nailer View Diagrams & Manuals
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NT65A2 2-1/2" 16Ga Finish Nailer View Diagrams & Manuals
NV45AA Heavy Duty Coil Nailer View Diagrams & Manuals
NV45AB 1-3/4" Heavy Duty, Roofing Coil Nailer View Diagrams & Manuals
VH501 Nailer View Diagrams & Manuals
N5008AC2 Stapler View Diagrams & Manuals
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NT65A5M 2-1/2 Inch 16ga Finish Nailer Pro 2-1/2 Inch 16ga Straight Finish Nailer View Diagrams & Manuals
NV45AB2M 1 3/4 Inch Roofing Coil Nailer Side Load Magazine (Wire Collation) View Diagrams & Manuals
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N5008AC2M 2 Inch 16 Ga Standard 7/16-Inch Crown Construction Stapler View Diagrams & Manuals
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N5010AM 2 Inch 16 Ga Medium 1/2 Inch Crown Stapler View Diagrams & Manuals
N5021AM 2 Inch 16 Ga Wide 15/16 Inch Crown Stapler View Diagrams & Manuals
N5024A2M 2-Inch 16 Ga Wide 1 Inch Crown Stapler View Diagrams & Manuals
NT65A5 Nailer View Diagrams & Manuals
NV45AB3 Nailer View Diagrams & Manuals
NV45AES Nailer View Diagrams & Manuals
NV50AP Nailer View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Nailer Parts
- Stapler Parts
Repair Videos ?
Watch the Repair Video for
Piston O-ring
Questions & Answers ?
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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.
piston packings hammer nose teeth ETC
jose - June 9, 2022
Tool Type
Nailer
Difficulty
Expert
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Power Drill, Socket set, Wrench Set, Nutdriver, Adjustable Wrench, The compressor
as well as opened and reassembled per already with the new pieces
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Leaking air from exhaust pirt
Brad - December 23, 2020
Tool Type
Stapler
Difficulty
Medium
Time
30-60 minutes
Tools Used
, Allen wrench(metric)
Removed head
Removed exhaust deflector
Replaced all pets in head
Hard time removing part on outside of cylinder so I could replace o-ring between cylinder.
Found taped holes in part I couldn’t remove, screwed in two screws from head removal and could pull part out.
Replaced cylinder o-ring
Put back together
Still leaked from exhaust port
Disconnected from air supply and reconnect to air supply while holding trigger down.
Heard plop of driver returning to top
Air leak quit and stapler works great
Don’t know if any of the parts repaired the leak, moral of the story, try connecting to air supply while holding trigger
Removed exhaust deflector
Replaced all pets in head
Hard time removing part on outside of cylinder so I could replace o-ring between cylinder.
Found taped holes in part I couldn’t remove, screwed in two screws from head removal and could pull part out.
Replaced cylinder o-ring
Put back together
Still leaked from exhaust port
Disconnected from air supply and reconnect to air supply while holding trigger down.
Heard plop of driver returning to top
Air leak quit and stapler works great
Don’t know if any of the parts repaired the leak, moral of the story, try connecting to air supply while holding trigger
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Air leaks
Manuel - April 6, 2019
Tool Type
Stapler
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set
Parts Used
Easy
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Piston bumper was shredded
JOSEPH - March 6, 2019
Tool Type
Stapler
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers
Pull off front of gun replace bumper very easy
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driver not returning,nails not feeding
Robert - January 9, 2019
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, allen wrenches,hammer.punch
1 remove head cap to replace driver o-ring. 2 remove nose piece to replace bumper sheet. 3 remove guard and pin to replace feeder spring.4 replace guard
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Air leak, driver not returning.
Fernando - November 22, 2017
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Wrench Set, Nutdriver
Removed old parts and cleaned the housing, replaced with new parts and assembled, tested.
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Piston driver not returning
Fernando - October 12, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Socket set, Wrench Set
Replaced bumper sheet and piston -o- ring , replaced damaged gaskets ( top and bottom) .
Applied grease where needed, assembled and tested. Worked perfect.
Applied grease where needed, assembled and tested. Worked perfect.
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Air nailer leaked air thru top of gun
James - August 11, 2017
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Pliers, allen wrench set
1. Removed exhaust cover and head cap
2. Removed cylinder and cleaned out housing
3. Replaced O-rings, exhaust valve, and head cap
4. Reassembled nailer
2. Removed cylinder and cleaned out housing
3. Replaced O-rings, exhaust valve, and head cap
4. Reassembled nailer
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Driver broke
anthony - December 21, 2016
Tool Type
Stapler
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Allen wrench
Removed head of stapler and tapped old driver out. Replaced o-ring on piston and installed new driver assembly and head gasket. Piece of cake! Half the price of bringing it to a tool shop.
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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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