Restore the performance of your pneumatic nailer with this firing system repair kit, designed to help eliminate air leaks, reduce misfires, and improve overall firing consistency. The kit includes replacement seals, O-rings, and other key internal components commonly worn during regular use, making it an ideal solution for routine maintenance and tool rebuilds. Replacing worn sealing components can help restore driving power and keep your tool operating smoothly and efficiently. Installation typically takes 15–30 minutes using basic hand tools such as hex wrenches and pliers.
Troubleshooting
This part works with the following brands:
Senco
This part works with the following products:
Nailer
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.
Easy
15 - 30 mins
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Using a 5mm hex wrench, remove the four screws from top of the nail gun. Be a little careful, as there is a spring in the assembly that will push the top of the gun off. I used a schematic I printed from the Senco website to identify the broken parts and determine the correct reassembly order. Otherwise, just remove one o-ring or seal at
... Read morea time and replace with the one from the kit. It seems that this kit is designed for multiple tool models so you will have a few parts left over. The challenge in the reassembly was figuring out that large outer seal on the aluminum chamber had to be installed in the gun body and the tube the installed.
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Model Cross Reference
This part works with the following models:
ERP Number: ERP11854810
Manufacturer Part Number: YK0243
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
