Easy
15-30 minutes
This is an authentic manufacturer sourced replacement part designed for use with Senco nailers/staplers. This is the seals for the piston. Over time it will shrink, become brittle and crack allowing for air leaks. At that time it should be replaced. It is made out of rubber material and it is sold individually.
Replacing this item you would need hex key/allen wrench and pliers to replace this item.
Seal LB3224
OEM part for: Senco
Part Number: LB3224
$9.49
In Stock
Order within the next 13 hours and your part ships today! 
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Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This part will fit the following 15 machines
Senco
M1 (090001N) Stapler View Diagrams & Manuals
M2 Stapler View Diagrams & Manuals
M3 Stapler View Diagrams & Manuals
MWXP Crown Stapler View Diagrams & Manuals
SC1XP Senclamp Gun View Diagrams & Manuals
SC2 Corrugated Fastner View Diagrams & Manuals
SFN2 Finish Nailer View Diagrams & Manuals
SN1 Nailer View Diagrams & Manuals
MW (120002) Stapler View Diagrams & Manuals
MW (120120) Stapler View Diagrams & Manuals
SC1 (220101N) Air Nailer View Diagrams & Manuals
SC1 (222001N) Air Nailer View Diagrams & Manuals
SFN2C (180004N) Air Nailer View Diagrams & Manuals
SFN2C (190006N) Air Nailer View Diagrams & Manuals
SN-1 (114000) Air Nailer View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Stapler Parts
- Nailer Parts
Customer Part Reviews ?
Average Rating (out of 5):
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Very nice to work with
Very pleasent
Guest -
September 29, 2023
Verified Purchase
Easy repair.
Installed it myself & my trusty Senco nail gun works great! Once I determined the correct seal that I needed, it was promptly delivered.
Guest -
February 8, 2021
Verified Purchase
Ring received is different from original.
Ring don't fit.
Guest -
November 11, 2021
Verified Purchase
eReplacementParts Team
Hi Bobby,
Thank you for your review. Please accept our apologies for this situation. We will be in touch with you shortly regarding your order.
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t -
t days ago
Verified Purchase
eReplacementParts Team
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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.
Piston seal/stuck trigger valve
Ken - September 21, 2016
👍 3 of 3 people found this instruction helpful
Tool Type
Stapler
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Wrench Set
Parts Used
Removed the gun cap using an hex wrench set (American). Removed the piston and found the seal at the top of the drive pin petrified and broken into many pieces. Cleaned the entire tool with stoddard solvent, examining all of the parts for wear and fit. Replaced the piston seal after lubricating the cylinder with gun oil and silicone. It was necessary work the trigger rod up and down using a Kroil solvent until it worked freely. The gun was then reassembled with sufficient lubricant to make it really snotty for a while. Congrats to Senco. I've owned that tool for 36 years. This is the first repaired I've had to do. This has been a shop tool at my business for all of those years. Simply incredible!
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Air leak from top of tool
wade - March 13, 2016
👍 3 of 3 people found this instruction helpful
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, allen wrench
Parts Used
Removed the top cap of the tool. Look at what could be causing the air leak. I located 3 worn seals and replaced them. The gun work like a new gun now. Note: put a little lube on the new seals
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Air leak due to worn out seal.
Dan - August 4, 2016
👍 2 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set, Allen wrench
Parts Used
Removed the top plate, and removed worn seal, then installed the new one. I then oiled the inside of the gun. And replaced the top plate. No more air leaks
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It had a seal that dried out and I replaced the seals, put it in shape like a new one
Isaac - March 25, 2016
👍 1 of 1 people found this instruction helpful
Tool Type
Stapler
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, allen wrench
Removed the four screws from the top cap of the stapler, took the top, then out pulled the plunger, replaced the seals put oil on them so they would go on easy then put it back together, plug air up and works like a charm it was simple. You should not have a problem just pay attention.
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Severe air leak from top. Would not drive staple.
Doug - October 24, 2020
Disassembled from the top and found the main seal in multiple pieces.
Ordered part
No instructions came with the part, and it would not stretch over the flange of the piston.
After several failed attempts, I resorted to warming it with a heat gun at which point I was able to stretch it onto the piston and seat it in the groove.
Reassembled and tested. Success.
Ordered part
No instructions came with the part, and it would not stretch over the flange of the piston.
After several failed attempts, I resorted to warming it with a heat gun at which point I was able to stretch it onto the piston and seat it in the groove.
Reassembled and tested. Success.
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O ring bad
Keith - July 16, 2019
Tool Type
Stapler
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
Removed Allen screws removed head removed by slamming on bench replaced o ring put back together and back to working
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Did not fire
Larry - August 4, 2018
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Installed all the new seals I ordered. The nylon seal needed to be heated up so it would streach. I put it in a dish of water and microwaved it for one minute on high, that made it just flexible enough to get it on to the piston top.
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Hammer would not retract
RAYMOND - May 6, 2018
Tool Type
Stapler
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Allen wrench
Parts Used
Removed allen bolts removed piston and replaced o-rings. Simple
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Defective piston seal
Daniel - September 1, 2017
Tool Type
Stapler
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
Parts Used
Removed for screws from the cap and removed
Removed the worn seal and installed the new one
Screwed the top cap back on
Removed the worn seal and installed the new one
Screwed the top cap back on
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Seals worn out.
Aldon - February 9, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Wrench Set, Nutdriver
Parts Used
Removed the screws from the top cap, then remove the cap
Remove the old seal and replace it with the new one
Oil the internal parts of the gun
Replace the top cap
Remove the old seal and replace it with the new one
Oil the internal parts of the gun
Replace the top cap
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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.
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.
