Hayward H400 H-Series Heat Exchanger Assembly | HAXHXA1403

The Hayward HAXHXA1403 Heat Exchanger Assembly is a genuine OEM replacement component engineered specifically for Hayward H400 H-Series pool and spa heaters. As the core of the heater’s thermal system, the heat exchanger channels heated combustion gases against water passages, maximizing heat transfer into your pool or spa water for fast, efficient heating performance.

Built to exact OEM specifications, this assembly features corrosion-resistant construction and durable materials designed to withstand repeated thermal cycling, high pressure, and long-term exposure to pool water chemistry. If your existing heat exchanger is leaking, corroded, or underperforming, replacing it with the HAXHXA1403 restores optimal heating efficiency and overall heater reliability.

Hayward HAXHXA1403 Heat Exchanger Assembly Compatibility

• Designed for Hayward H400 H-Series pool and spa heaters requiring the HAXHXA1403 heat exchanger.

• OEM replacement for original heat exchangers specified in supported H400 H-Series models (verify exact model fit via your heater’s parts list).

• Works with compatible heater burners, gas valves, headers, and control systems as defined by OEM design.

• Suitable for both natural gas (NG) and propane (LP) configurations when matched to the correct fuel model.