O-Ring is the Atlas Copco service part carried under part number 3371820725. Its job is to hold the pressure boundary between two mating faces; a hardened or nicked seal shows up as lost power and a damp housing well before anything else fails.
It is called out in the parts diagram for the BRK 55 55VR 55VR HBP 55 HBP Hydraulic Paving Breaker and PDR 95T 95RV Hydraulic Post Driver, and on 14 other machines.
The parts breakdown index indexes every breakdown we publish, and the Atlas Copco lineup 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: 3371820725
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3371820725
- Listed on breakdowns for: BRK 55 55VR 55VR HBP 55 HBP Hydraulic Paving Breaker, PDR 95T 95RV Hydraulic Post Driver, PDR 75T 75RV Hydraulic Post Driver, MH55 55A HBP Hydraulic Paving Breaker, MH70 70A HBP Hydraulic Paving Breaker, MDR 75T HBP 75 RV HBP Hydraulic Post Driver, +10 more
