Product Overview
The Superior Parts SP EA0138 Aftermarket Piston/Driver Assembly is an aftermarket replacement internal drive assembly designed to restore consistent firing power, smooth piston cycling, and reliable fastening performance for compatible Senco FinishPro 41XP finish nailers. Engineered as a replacement for the original EA0138 piston assembly, this component combines a hardened steel driver blade with an aerospace-grade aluminum piston to deliver dependable nail driving force, reduced wear, and long-lasting pneumatic performance. Built with UNI-LOK mechanically locked technology, the piston and driver interface is designed to resist loosening during repeated high-impact operation, helping maintain stable fastening performance in demanding woodworking and trim applications. The assembly includes an integrated O-ring for improved sealing efficiency and reliable air pressure retention, supporting smoother operation and reduced air leakage. Designed specifically for the Senco FinishPro 41XP 15-gauge finish nailer, this aftermarket piston/driver assembly is ideal for restoring tool functionality, extending service life, and maintaining dependable jobsite performance for contractors, carpenters, and finish woodworking professionals.
- Genuine Superior Parts OEM tool part
- Please Reference Tool Diagram to Ensure Part Compatibility Before Ordering
- Origin of Manufacture and Packaging May Vary
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Brand:
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Superior Parts
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Type:
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Aftermarket Piston/Driver Assembly
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Color:
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Silver, Black
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Compatible Tools:
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FinishPro 41XP (sold separately)
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Quantity:
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(1) Piston/Driver Assembly
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Material:
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Steel
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Made in the USA:
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No
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Model Number:
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SP EA0138
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