Replacement Heat Exchanger and Header Assembly for Jandy Heaters

Jandy JXi 400K Heat Exchanger and Header Assembly - R0805805 Genuine Replacement

The Jandy R0805805 Heat Exchanger and Header Assembly is the factory replacement heat-transfer core for 400,000 BTU Jandy JXi gas heaters. Built to restore peak heating performance and combustion efficiency, this complete assembly pairs a new heat exchanger with a matched header, making it the go-to repair when corrosion, scale, or impact damage compromises your original unit.

Key Features:

• OEM Jandy Replacement: Engineered to exact factory tolerances for a precise fit in JXi 400K series heaters.
• Complete Assembly: Includes both the heat exchanger and header together, simplifying installation and ensuring matched components.
• Natural Gas & LP Ready: Labeled for Natural Gas service with included labels for conversion use on LP Gas heaters.
• Heavy-Duty Construction: Robust 65-pound build is designed for reliable, long-term heat transfer performance.
• Broad JXi Compatibility: Fits JXI400N, JXI400NK, JXI400P, and JXI400PK heater models.

Technical Specifications:

• Part Number (MPN): R0805805
• UPC: 052337078191
• BTU Rating: 400,000 BTU
• Weight: Approximately 65 lbs
• Fuel Compatibility: Natural Gas (with LP conversion labels included)
• Fits Models: Jandy JXI400N, JXI400NK, JXI400P, JXI400PK
• Assembly Includes: Heat exchanger and header (burner not included)
• Product Type: Heat Exchanger Assembly