Easy
Less than 15 minutes
Genuine Manufacturer Sourced replacement part designed for use with Porter Cable Nailer. This item is made out of Metal and it 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.
Piston Driver 5140091-22
OEM part for: Porter Cable
Part Number: 5140091-22
$50.02
In Stock
Ships within 1 business day 
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Frequently Purchased Together ?
Compatibility
This part will fit the following 2 machines
Porter Cable
PIN138 Type 1 23G 1-3/8 Pin Nailer View Diagrams & Manuals
PIN138 (Type 1) Pin Nailer View Diagrams & Manuals
This item works with the following types of products:
- Nailer Parts
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Easy repair works great
Like a new gun
Guest -
June 13, 2019
Verified Purchase
Ordering
Ordering has been easy
AJ -
April 22, 2019
Verified Purchase
Problem fixed
Part works great , nail gun works like new now . Only negative is that the part cost almost half the price of a new gun .
Rick -
September 19, 2019
Verified Purchase
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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.
Driver end broken
Dechert - August 31, 2016
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Parts Used
Removed cap.
Remove the broken driver from the cylinder
Reused same piston ring
Inserted new driver in cylinder
Cleaned though out and oiled
Reassembled
Remove the broken driver from the cylinder
Reused same piston ring
Inserted new driver in cylinder
Cleaned though out and oiled
Reassembled
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Nail gun wouldn't set the nails, broken driver
Richard - January 31, 2021
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set
Parts Used
Removed couple bolts, pulled out old
Driver and reinstalled new driver and bolts
Bam shoots like a new nail gun
Driver and reinstalled new driver and bolts
Bam shoots like a new nail gun
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piston driver tip broke off
Michael - January 21, 2021
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, 6mm allen wrench
Parts Used
a you tube video helped
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Michael - March 7, 2019
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrenches. Fingers
Pulled the top of pinner off. 4 allen bolts. Removed the existing driver. Took off the rubber oring seal. Installed the oring on the new driver. Carefully pushed it back in the head of the pinner. Installed the 4 allen bolts and tested it for leaks.
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Does not insert the nail all the way
German - September 3, 2018
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
Parts Used
-Remove piston casing
-Replace Piston
-Reattach Piston Casing
-Replace Top Plate
-Replace Piston
-Reattach Piston Casing
-Replace Top Plate
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.The tip of the driver broke off
Mikhail - April 9, 2018
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
Parts Used
1, Remove the four bolts that hold the top of the Nailer, and the top should come of easily
2,Then you can use the new piston driver to push the old one out, threw the tip were the nails come out
3,Then put the new one in and make sure you swap ring of the old piston and put it on the new one.
2,Then you can use the new piston driver to push the old one out, threw the tip were the nails come out
3,Then put the new one in and make sure you swap ring of the old piston and put it on the new one.
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Piston/driver was broken
Oscar - February 26, 2017
👍 1 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
Remove the top cover
Remove the broken piston/driver
Place the o-ring on the new piston driver
Install the new piston/driver in the cylinder
Replace the top cover
Remove the broken piston/driver
Place the o-ring on the new piston driver
Install the new piston/driver in the cylinder
Replace the top cover
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Driver bent
Daniel - September 24, 2016
👍 0 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, alan wrench
Parts Used
Remove the top of the gun, then removed the bent driver. Remove the o-ring from the old piston and put it in the new one. Then inserted the new driver in the cylinder. Replaced the cap. Done,
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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.
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.
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