This is a genuine manufacturer sourced replacement part. It is commonly utilized on Bostitch nailers. The piston bumper will keep the piston from hitting the bottom of the cylinder and damaging it. Because this item is constantly under pressure, it will eventually crack and fall apart requiring replacement. This item is made out of plastic material and it is sold individually.
Bumper 191777
OEM part for: Bostitch, DeWALT, Porter Cable
Part Number: 191777
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Frequently Purchased Together ?
Compatibility
This Bumper will fit the following 11 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
This item works with the following types of products:
- Nailer Parts
This part replaces obsolete part #: 149803
Repair Videos ?
Customer Part Reviews ?
- 1
Questions & Answers ?
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Does this fit my product?Questions & Answers for Bumper
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.
broken bumper
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set, 5mm allen wrench
Parts Used
O rings were bad
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Power Drill
Bumper crack and oring broken
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Power Drill
Parts Used
O-ring broke and bumper completely shattered
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
2 pulled out the driver/piston
3. Used compress air to clean out all the debris from the shattered bumper.
4. Installed new parts. O-ring, bumper, guide
5. Used air tool oil to lube up new parts
6. Reassembled the back cap using the 4 Allen screws
7. Tested nailer and works perfectly.
Worn bumper and o-ring
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench and punch
Parts Used
Punched out piston from the bottom
Cleaned out cylinder
Installed new parts
Broken o ring on driver head and broken bumper
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrenches
Parts Used
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.