
Pro Circuit O-ring (ref. PC4008-0401) — Replacement sealing part for the water pump cover. Designed to maintain the integrity of the cooling circuit on motocross machines, this O-ring replaces the original component to ensure a seal between the cover and the pump body.
Essential during maintenance or refurbishment of a water pump, this seal is aimed at riders and mechanics who ensure the reliability of their bike both on the track and during training sessions. Sold individually, it allows for targeted replacement without the need to replace the entire casing.
Examples of compatible machines (for reference):
When removing the pump cover, check the condition of the seal and replace it if necessary to prevent leaks and maintain clean and reliable coolant circulation. A simple yet essential spare part to keep your motorcycle ready to tackle the tracks.