Genuine Manufacturer Sourced replacement part, this item is sold individually. The Piston/Driver Assembly is the part of the nail gun that drives the nail into the material that is being used. To help extend the life of a pneumatic tool use the specified oil in it daily 4-5 Drops will do every time you use it. The Piston/Driver Assemblies do have a tendency to bend or break if not used correctly or if you are driving nails into extra hard material.
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★★★★★
★★★★★
Working Again
I need this part to fix my nail gun great price shipping was not as fast as I'd like but now slow either. Will buy from them again.
Guest - July 27, 2019
Verified Purchase
★★★★★
★★★★★
Good parts at a reasonable pricel.
I received the parts in a very timely manner. The parts worked fine. Thanks.
Guest - October 4, 2019
Verified Purchase
★★★★★
★★★★★
Easy repair
The Piston Driver arrived in a timely manner and was spot on. Was using my finish nailer again in less than an hour.
Guest - April 14, 2020
Verified Purchase
★★★★★
★★★★★
DIY repair
Parts are always available and ship charges are not over priced
David - April 14, 2020
Verified Purchase
★★★★★
★★★★★
Great part, great repair.
Site made it easy to identify exactly what I needed. Got it quickly and it worked perfectly.
Guest - May 30, 2019
Verified Purchase
★★★★★
★★★★★
Gracias fue sencillo cambiar la pieza y trabaja muy bien
La pieza de cambio no demoró estuvo en buen tiempo de entrega gracias
Guest - January 28, 2022
Verified Purchase
★★★★★
★★★★★
Works like NEW!
The right part at the right price. Saved hundreds by replacing the part by myself instead of just trashing it and getting a new one.
Peter - February 3, 2022
Verified Purchase
★★★★★
★★★★★
Fits and works perfect.
Fits and works perfectly in my Porter Cable FN250C, 16Ga.
Just be aware, save the small black ring and white plastic sealer if still intact, or purchased new ones; this is the piston only(had to purchase the white plastic sealer).
Timely delivery.
Anonymous - April 2, 2022
Verified Purchase
★★★★★
★★★★★
ships quick
was the parts I needed thanks
Guest - July 15, 2019
Verified Purchase
★★★★★
★★★★★
Exactly what I needed
Arrived in an expected time period
Colleen - May 15, 2020
Verified Purchase
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1. Removed the 4 mounting screws with an allen wrench.
2. Removed the piston driver assembly and found that the seal was blown and the driver pin was severely bent.
3. Put o-ring on the piston assembly and covered with replacement seal (part that is white plastic)
4. Re-inserted the driver pin through the guide place whi
... Read morele installing the finished assembly.
5. Re positioned the gasket on back and screwed in the cover.
6. Gun now fires like a champ.
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Piston driver assembly snapped, and ring seal broke within cylinder - nailier inoperaboe
1. Using hex wrench, remove cap from nailer
2. Remove cylinder/driver assembly from nailer housing
3. Remove broken driver assembly & seal from cylinder
4. Place new O-Ring (black) around new driver assembly
5. Wrap new seal (white) around new driver assembly
6. Insert new driver assembly/seal into cylinder
<
... Read morebr />7. Insert cylinder/driver assembly into nailer housing
8. Reattach cap using hex wrench.
9. Ensure that driver is aligned within nose assembly
1. Removed the head of the nailer (4 hex screws).
2. Removed the bent piston driver.
3. Installed the new o-ring and the seal onto the new driver.
4. Reassembled the tool.
Disassemble. Remove and replace trigger ass\'y. Replace Nail driver and all O-rings. Use petrolatum jelly as lubricant for internal parts. Use Rem Oil w/Teflon lubricant spray for Nailer slide tracks. Assemble all and replace body pin O-rings.
The 16 Ga Finish Nailer works like brand new. So pleased. Could have saved mone
... Read morey buying the O-rings local. Cost about $70.00 on a $300 Tool.
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Nail driving pin broke and ruined the piston cylinder
1. Removed the four bolts holding on the rear cap.
2. Removed internals.
3. Installed new internals with a light coating of oil.
4. Reinstalled rear cap with new gasket.
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.
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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.
