This replacement piston bumper is an authentic OEM item. It is specially designed for Hitachi nailers. This part acts as a cushion when the piston retracts back into the cylinder after being fired. Because this part gets so much abuse it has a tendency to crack and fall apart. If the part is damaged or falls out you will need to replace it. It is made of high-quality material and is sold individually. To complete this repair you would need a Hex key also known as an Allen wrench. Check the owner's manual and the appropriate diagrams for the correct application.
Troubleshooting
This part works with the following brands:
Hitachi
This part works with the following products:
Nailer
Part# 887170 replaces these:
887-170,
★
Customer Part Reviews
?
5.0
Average Rating (out of 5):
★★★★★
★★★★★
(2 Reviews)
Click to filter by ratings:
5 stars
2
4 stars
0
3 stars
0
2 stars
0
1 star
0
< Prev
1
Next >
Sort by:
Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.
★★★★★
★★★★★
Great part-worked perfect
The part arrived on time and in good shape. It was a perfect fit and fixed the problem with my nail gun.
Guest - April 27, 2021
Verified Purchase
★★★★★
★★★★★
Worked great
Fit as should, works great like a new gun again
Guest - September 15, 2025
Verified Purchase
Model Cross Reference
This part works with the following models:
ERP Number: ERP18811905
Manufacturer Part Number: 887170
Nailer
- 2 1/2” 15 Ga Angled Finish Nailer With Blow Nozzle
✖
Stock Status
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
✖
Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
_WW_1.gif "Part Location Diagram of 887170 Metabo HPT Piston Bumper")
_WW_1.gif "Part Location Diagram of 887170 Metabo HPT Piston Bumper")
