Contractors and DIYers, if your Porter Cable nailer isn't cycling properly, this BH-Motor piston bumper might be the fix you need. This replacement part (#886113) is compatible with several Porter Cable models including RN175 Type 1 & 2 Roofing Nailers, FN250A Finish Nailer, and NSS150 Super Narrow Crown Stapler. The piston bumper is crucial for smooth operation - it absorbs impact and helps with proper nail driving and cycling. When these wear out, you'll notice performance issues like incomplete drives or rough operation. Installation is straightforward for anyone familiar with nailer maintenance - just follow your tool's service manual. BH-Motor specializes in replacement parts for power tools, so you're getting a quality component designed to match OEM specifications. Having spare parts like this on hand can save you downtime on job sites or projects. Whether you're a professional contractor relying on your nailers daily or a serious DIYer maintaining your tools, keeping key components like piston bumpers available makes sense. This single package includes one piston bumper ready to get your Porter Cable nailer back in working order. It's one of those simple replacements that can extend the life of your valuable tools significantly!