Easy
15-30 minutes
It is an OEM item which is made for Max stick nailers. This component provides an air-tight seal for the cylinder cap. Over time the material will wear out and it may begin to crack eventually requiring a replacement to prevent air leaks. To ensure the correct installation of the new seal, refer to the specific diagrams of your model. Note, it is made of durable material and is sold as an individual component. You will need an Allen wrench to remove and resecure the cylinder cap hardware in order to perform this repair.
Cylinder Cap Seal Unit KN70142
OEM part for: Max
Part Number: KN70142
$24.26
In Stock
Ships within 1 business day 
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Compatibility
This part will fit the following 5 machines
Max
SN883CH/28 Clipped Head Stick Nailer View Diagrams & Manuals
SN883CH/34 Clipped Head Stick Nailer View Diagrams & Manuals
SN883RH Full Round Head Stick Nailer View Diagrams & Manuals
SN883RH2 Full Round Head Stick Nailer View Diagrams & Manuals
SN890CH2_34_ Clipped Head Stick Nailer View Diagrams & Manuals
This item works with the following types of products:
- Nailer Parts
This part replaces obsolete part #: KN70097
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Easy repair
Part was perfect
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June 28, 2020
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Every time I order parts from this establishment I get nothing but top notch service and products.
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July 10, 2019
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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.
Seals blew out.
Dale - October 16, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
Parts Used
Took the top of the gun off. Put the new seal in less than 5 minutes, very simple. Thanks, Ereplacementparts very good to work with.
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Air leak from the top
Jon - October 6, 2016
👍 2 of 3 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Wrench Set, Nutdriver, Allen wrenches
Parts Used
Removed the cylinder cap and the old gasket. Cleaned the both surfaces where the gasket is installed. Place the gasket on the cylinder body and screwed on the cylinder cap. No more air leaks.
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Air leaked out of the top cap
david - July 17, 2016
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set
Parts Used
1. Removed the top cap
2. Took off the old gasket and there it away
3. Put on new gasket and top cap and tightened down the bolts
2. Took off the old gasket and there it away
3. Put on new gasket and top cap and tightened down the bolts
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Leaking gasket
Dale - December 23, 2015
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, allen keys
Parts Used
Very simple. Removed top Allen screws 4 of them. Then replaced the gasket. Done.
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Leaking air from top of gun
George - April 29, 2021
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Hex key
Parts Used
Removed the four hex bolts , removed old gasket , cleaned gasket seat installed new gasket.
The gun shoots , but still leaks air , cap may be deformed by frost.
The gun shoots , but still leaks air , cap may be deformed by frost.
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Leaked while air was hooked up
Dick - August 5, 2020
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Nutdriver
Pulled unit apart added new parts reassembled
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framing nailer air leak,
Scott - December 1, 2018
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set
Parts Used
It was very easy, and most of all saved money. and received quickly. I would recommend this company.
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Seal broke
Christopher - January 20, 2017
👍 1 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Power Drill
Parts Used
Unscrewed the cylinder head took out the broken seal put new one in and screwed cover back on.
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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.
