Product Information
O-ring 63x3
Compatible with 9 equipment models
- KBR35 Bosch Greenstar KBR35 Floor Boiler
- KBR42 Bosch Greenstar KBR42 Floor Boiler
- KWB35 Bosch Greenstar KWB35 Floor Boiler
- KWB42 Bosch Greenstar KWB42 Floor Boiler
- ZBR35 Bosch Greenstar ZBR35 Wall Boiler
- ZBR42 Bosch Greenstar ZBR42 Wall Boiler
- ZWB35 Bosch Greenstar ZWB35 Wall Boiler
- ZWB42 Bosch Greenstar ZWB42 Wall Boiler
- ZWB42-3A Bosch Greenstar Pro ZWB42-3A Wall Boiler
Already a customer?
Sign in to view pricingAre you an HVAC/Gas professional?
Call (604) 524-0086 to open a trade account and get online access.
Note: We do not sell to the general public.
Fast Shipping
In-stock orders ship within 1 business day to anywhere in Canada.
Code-Compliant
All products meet Canadian HVAC and gas code standards.
Wholesale Pricing
Trade pricing for licensed contractors. 40+ years in the industry.
O‑ring 63x3 is a compact circular sealing gasket used as a service replacement in Bosch heating, hot‑water and HVAC components; the 63x3 profile provides a low‑profile seal for pipe, valve and fitting joints to prevent fluid or refrigerant leakage and simplify maintenance. Typically supplied in service‑pack quantities for professional installers, it supports reliable field repairs and routine servicing. Note: Bosch North America Web‑ETK did not list part number 87228801750; description based on Bosch O‑ring spare‑part entries. (bosch-homecomfort.com)
Related Products
Gasket 22,2x30x2
O-ring
O-ring burner flange (outer ring)
Seal (Service cover) WB5-II+
O-ring 1.23 x 0.14 NBR
Burner sealing
O-ring 13,87x3,53
Lip seal 29,8 x 6,1
Washer
Sealing mounting plate
Sealing
