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Bostitch Cylinder/piston Ring A631000/9040019 $24.98

Bostitch Air Compressor Parts

Product Details
Bostitch
Brand: Bostitch
Part Number: A631000/9040019

This kit contains the following components:

A631000/9040019 - Cylinder/piston Ring
Description: Replace if scratched, worn or poor compression.

The piston rings provide compression in an air compressor pump by providing the seal in between the cylinder wall and the piston. In an oil-bath pump, there are usually two compression rings and one oil (scraper) ring to keep oil from passing the piston and into the head. In an oil-free pump, the piston is Teflon-coated and doesn’t require lubrication. If your pump is pulling oil into the head or if compression is very low (oil-bath pumps), replace the rings. If your pump isn’t pressurizing or if the piston ring is damaged along the outer perimeter (oil-free pumps), replace it. Also replace the cylinder sleeve when replacing the compression ring (oil-free pumps).

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This item fits the following models:

Air Compressor Parts - CAP2040P-OF
Air Compressor Pump Parts - H1506FWH - Type 1



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