Polaris Genuine OEM Cylinder, 6-407-00

This is the genuine Polaris cylinder, part number 6-407-00, listed as the chamber cylinder assembly and molded in plastic. Polaris groups it with the parts for the 160 and 165 cleaners.

Where it sits

The cylinder is part of the mechanism that converts water pressure into the cleaner motion. It houses the moving element, so it lives in a wet, gritty environment and takes constant reciprocating load. When the bore wears or the body cracks, the mechanism loses its action and the cleaner slows, stalls or wanders instead of running its pattern.

Rebuild or replace

The piston, the connector chamber and the complete mechanism assembly are all sold as separate Polaris parts. If only the cylinder is damaged, this is the economical fix. If several internals are worn, compare the cost of individual pieces against the full mechanism assembly first.

Ordering

Cleaner internals from the same era look very similar, so order by the number. Confirm your model, then match part 6-407-00 against the piece you are replacing.