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Metabo HPT (Hitachi) Parts

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Gasket (a) - 877334:Metabo HPT (Hitachi) 360 View
Gasket (a) - 877334:Metabo HPT (Hitachi)Gasket (a) - 877334:Metabo HPT (Hitachi)Gasket (a) - 877334:Metabo HPT (Hitachi) 360 View

Gasket (a) 877334

Part Number: 877334
Metabo HPT (Hitachi)
Availability: In Stock
Price: $3.99
Ships within 1 business day
Product Information
Description:
This is a genuine Hitachi replacement part, it is sold individually. Its purpose is to create a seal and prevent air leaks. Over time this gasket will deteriorate and will have to be replaced. This specific gasket is commonly used in nailers, and is compatible with the models listed below.
Frequently Purchased With
Products Compatibility

This item works with the following types of products:

  • • Nailer

Questions & Answers for Gasket (a)


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Repair Instructions: Submitted by Customers Like You
2 of 2 people found this instruction helpful
Tool Type:
Nailer
Parts Used:
Gasket (a) - 877334
Piston Bumper - 878303
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Nutdriver, Allen wrench
Nail gun would not fire
Removed the old piston bumper and installed the new one and new gasket I have had this nail gun for almost 30 years I know it quite well I also can't believe that I can still get parts for it
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1 of 1 people found this instruction helpful
Tool Type:
Nailer
Parts Used:
Gasket (f) - 877329
Gasket (a) - 877334
Valve Packing - 888151
Plunger O-ring - 874820
Roll Pin D3x30 (10 Pcs.) - 949866
Exhaust Valve - 890209
Gasket (c) - 877326
O-ring Overhaul Kit - 18000M
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
, allen wrench set, O ring pic, 8mm wrench, hammer, punch.
framing nailer was leaking air when connected to air hose
Dismantled entire gun piston bumper was breaking into small pieces causing air leak. I use my nail guns daily therefore when something like this happens I always do a complete rebuild, in this case the front bumper was also bad. I always allow a few hours thoroughly clean, inspect and rebuild everything properly to extend the time between rebuilds. recommendations: Take your time be patient, drink a beer if necessary and make it like brand new.
P.S. DO NOT REUSE OLD PARTS SUCH AS GASKETS, ROLLED PINS, ETC. CHEERS AND HAVE FUN!
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Tool Type:
Nailer
Parts Used:
Gasket (a) - 877334
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Allen wrench sets
The lower noise guard gasket was leaking.
Have to remove the slide rail first. The take off the lower rail guide. Clean parts good before replacing parts.
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Tool Type:
Nailer
Parts Used:
Piston Driver Assembly - 890385
Piston Bumper (b) - 883511
Gasket (a) - 877334
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, ALLEN WRENCHES
NAIL BROKE THE END OFF OF THE PISTON
REMOVED BROKEN PART,REINSTALLED PISTON AND NEW BUMPER.REPAIR FINISHED
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Tool Type:
Nailer
Parts Used:
Cylinder O-ring (i.d 63.9) - 890444
Piston Bumper (b) - 883511
Gasket (a) - 877334
Roll Pin D3 X 45 - 887852
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Pliers, allen wrench
Nailer wouldn't fire
After disassembly & inspection needed a new piston bumper. Need to remove the entire front nose of the gun including the nail magazine. Once the nose piece is removed the bumper just fits right inside and re-assemble in reverse order
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Tool Type:
Nailer
Parts Used:
Top Cover - 877330
Gasket (a) - 877334
Magazine - 884065
Gasket (b) - 877325
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
, Long hex wrench
Megazine was broke as well as the top cover and my gasket were blown
Removing the megazine completely
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Tool Type:
Nailer
Parts Used:
Gasket (f) - 877329
Gasket (a) - 877334
Gasket (b) - 877325
Gasket C - 877854
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Pliers, Power Drill, Socket set, Wrench Set, Nutdriver
Nail gun was not sinking nails and air started to leak from gaskets. The piston bumper had broken to pieces and the gaskets had worn out.
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Tool Type:
Nailer
Parts Used:
O-ring - 875638
Piston Bumper (b) - 883511
Gasket (a) - 877334
Urethane Ball - 890301
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
, Allen wrench
Leaking air in several places
Removed end cap and driver guide { nose piece } replaced nose piece gasket, replaced damaged o-ring re-assembled gun and tested. Gun good to go.
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Tool Type:
Nailer
Parts Used:
O-ring - 877368
Cylinder O-ring - 890443
Cylinder O-ring (i.d 79.3) - 877313
Cylinder O-ring (i.d 69.3) - 877314
Cylinder Ring - 886483
Gasket (g) - 877327
Cylinder O-ring (i.d 63.9) - 890444
Piston Bumper (b) - 883511
Gasket (a) - 877334
Gasket (c) - 877326
Gasket (b) - 877325
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Wrench Set, Allen wrench
Leak too much air,
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
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0 of 1 people found this instruction helpful
Tool Type:
Nailer
Parts Used:
O-ring - 877368
Cylinder O-ring - 890443
Cylinder O-ring (i.d 79.3) - 877313
Cylinder O-ring (i.d 69.3) - 877314
Gasket (g) - 877327
Cylinder O-ring (i.d 63.9) - 890444
Gasket (a) - 877334
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Socket set, Wrench Set, Nutdriver, picks for \\\'O\\\' rings
leaks air at top and double fire
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
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Reviews
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Average Rating (out of 5):
3 Reviews
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  • Better than expected
    Fast delivery. Parts are correct and in good shape. Fit perfectly. Back nailing again like new
    Phil - May 8, 2020 Verified Purchase
    Great Service
    E replacement parts is an amazing service. As a professional carpenter I frequently purchase parts to keep my tools running.
    Guest - July 20, 2019 Verified Purchase
    Parts fit as expected
    All of the parts were what was needed to fix my power nailer. I would have hoped you shipped a little faster than you did. However your price was much better than all others so it is a wash.
    Guest - July 10, 2019 Verified Purchase
    Verified Purchase
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