Ordering by number: this is 3371820137, the Chicago Pneumatic Spring. It is a spring in the breaker's trigger valve.
You will find it on 3 Chicago Pneumatic BRK 55 parts diagrams: CP BRK 55 – Breaker – BRK 55 & BRK 55 VR; CP BRK 55 – Breaker – BRK 55 HBP & BRK 55 VR HBP; CP BRK 55 – Trigger valve kit. Check it against the reference number on the diagram first; serial breaks change what fits.
The parts diagram library indexes every breakdown we publish, and the Chicago Pneumatic tool range has the tools these parts go into. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 3371820137
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-3371820137
- Listed on breakdowns for: CP BRK 55 – Breaker – BRK 55 & BRK 55 VR; CP BRK 55 – Breaker – BRK 55 HBP & BRK 55 VR HBP; CP BRK 55 – Trigger valve kit
