Medium
30-60 minutes
It is a genuine Bostitch item that is supplied directly from the original equipment manufacturer for use with nailers. This replacement gasket is utilized to provide an air-tight seal between the end cap and the main housing. Seals and gaskets over time tend to wear out and crack eventually requiring replacement to maintain tool's peak performance. It is a high-quality component which is made of durable composite material and it is sold individually.
Gasket,frame/cap 100212
OEM part for: Bostitch
Part Number: 100212
$4.99
In Stock
Ships within 1 business day 
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Frequently Purchased Together ?
Compatibility
This part will fit the following 4 machines
Bostitch
WM45B Pneumatic Coil Nailer View Diagrams & Manuals
RN45B Coil-Fed Pneumatic Roofing Nailer View Diagrams & Manuals
RN45B (Type 0) Roofing Nailer Power Tool View Diagrams & Manuals
WM45B (Type 0) Coil Nailer Power Tool View Diagrams & Manuals
This item works with the following types of products:
- Nailer Parts
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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.
orings bad , parts broken and degraded
Gregory - February 6, 2021
Tool Type
Nailer
Difficulty
Hard
Time
More than 2 hours
Tools Used
Screwdriver, Wrench Set, wire brushes, pocket knifes
Parts Used
Cleaned the railer from top to bottom, replaced all bed parts and orings
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Broken bumper.
EDDY - October 5, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Removed the cap by removing 4 screws, removed the worn and broken parts and installed the new ones. Cleaned the inside of the nail gun, then oiled the inner parts, then replaced the cap.
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Missing the pins that hold trigger,trigger valve assembly leaking,,,obtained trigger valve assembly locally
Domingo - January 26, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, metric allen wrench, roll pin punch, curved pointed probe
1. Removed trigger valve assembly by connecting air hose to roofing nailer,,,the pins were missing so valve assembly popped right off
2. Lubed new trigger valve assembly with air tool grease and inserted valve in body,noting that the grooves on trigger valve assembly lined up with pins that hold it in
3. Using the roll pin punch of correct diameter,drove the pins in that hold the valve assembly and the trigger
4. Remove firing valve and removed the driver, cleaned cylinder, cleaned driver and installed new o ring on driver piston
5.Installed new cap gasket/seal and torqued the four cap screws,,,
6. Loaded nails in roofing nailer and tested it on piece of 2X4,,worked perfect,,very important to install the driver in correct position,,,failure to do so could break the hardened steel driver
2. Lubed new trigger valve assembly with air tool grease and inserted valve in body,noting that the grooves on trigger valve assembly lined up with pins that hold it in
3. Using the roll pin punch of correct diameter,drove the pins in that hold the valve assembly and the trigger
4. Remove firing valve and removed the driver, cleaned cylinder, cleaned driver and installed new o ring on driver piston
5.Installed new cap gasket/seal and torqued the four cap screws,,,
6. Loaded nails in roofing nailer and tested it on piece of 2X4,,worked perfect,,very important to install the driver in correct position,,,failure to do so could break the hardened steel driver
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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.
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