Easy
Less than 15 minutes
This is a genuine OEM part that is specially designed for use with Porter Cable nailers and staplers. The HD. valve piston is an important component that ensures a tight seal between connected components. Over time it may wear out or get damaged eventually requiring a replacement. One durable part is included. Refer to the owner's manual and the appropriate diagrams for your model to ensure the proper repair procedure. An Allen wrench will be needed to take apart the tool when replacing this HD. valve piston.
Hd. Valve Piston 894731
OEM part for: Porter Cable
Part Number: 894731
$7.22
In Stock
Ships within 1 business day 
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Compatibility
This part will fit the following 10 machines
Porter Cable
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Show More Compatible Models
This item works with the following types of products:
- Nailer Parts
- Stapler Parts
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Fast service and I’m back to work
I set my nail guns down for a number of years and when I next used them, several of them failed. eReplacementparts made the fix easy and service was prompt and efficient.
Timothy -
August 24, 2022
Verified Purchase
Easy fix.
Fit just right and my nail gun and staple gun work like new
Guest -
May 26, 2022
Verified Purchase
air stapler
everything is working great my pneumatic stapler is working great again
Guest -
June 3, 2021
Verified Purchase
Great website and pictures to find correct part!
Great website and pictures to find correct part. Correct parts were received promptly. Nailer is working great again. I will use this company again!
Guest -
February 2, 2021
Verified Purchase
easy to look up the parts will use again for sure
quality parts better than new
Guest -
July 28, 2020
Verified Purchase
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Does this fit my product?Questions & Answers for Hd. Valve Piston
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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.
Nail Gun loosing air from top of housing.
Milton - August 17, 2017
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
1. Remove the four bolts in the top of the head unit.
2. Replace the parts inside in the same order they came out.
3. Replace top cap.
4. You can refer to the parts diagram on eReplacement’s website for your exact model.
2. Replace the parts inside in the same order they came out.
3. Replace top cap.
4. You can refer to the parts diagram on eReplacement’s website for your exact model.
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O-ring torn in two pieces
David - March 20, 2016
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
I removed the top cap of the nail gun. And noticed the worn parts. I then removed the old parts and clean the inside of the gun thoroughly. Then easily replaced the new parts. Oil the o-ring before placing on head valve piston
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OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
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.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
