OEM part number
809000045 Bolt M5x12 hex socket
Rinnai part 809000045. Listed for 8 models below.
Rinnai E-Combi condensing combi boiler (E50CRN, E75CRN/CRP, E110CRN/CRP)
Bolt M5x12 hex socket · Qty 3 per pack. Fits all 8 models in the series:
Source: Rinnai E-Combi Series Installation & Servicing Instructions (8U516009 V0116), page 82, 84. Full E-Combi parts list
Part numbers are taken from the manufacturer’s published repair parts documents and are listed so you can identify the right part. Manufacturers replace and supersede numbers over time, so confirm the number with your distributor before you order, and use factory-authorized parts on equipment under warranty. Replacing gas, electrical and refrigerant parts is work for a licensed technician. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.