017977F | Raypak ASME 406A/407A Copper Tube Bundle Heat Exchanger

The Raypak 017977F Copper Tube Bundle is a factory OEM heat exchanger kit for 406A and 407A Raypak heaters (models with polymer headers), intended for residential ASME units. It includes a full set of copper tubes, gaskets, hardware, and internal baffles required for a complete replacement. This bundle restores heat transfer efficiency, proper water routing, and sealing integrity—especially if your original tube bundle is aged, scaled, or compromised. Designed to integrate seamlessly, it helps bring your heater back to full performance.

Highlights

• Complete OEM Copper Tube Assembly: Comes with all tubes, gaskets, bolts, and baffles required for a full swap, eliminating the need to source additional parts.

• Specifically Built for 406A & 407A Polymer-Header Units: Designed for Raypak models that use polymer headers, ensuring correct alignment and fit for residential ASME use.

• Restores Heat Transfer & Efficiency: New copper surfaces and clean internal flow paths enhance thermal exchange, reduce heat loss, and return your heater to ideal operating conditions.

• Durable Against Corrosion & Thermal Stress: Constructed to resist corrosion, scaling, and repeated heating-cooling cycles—helping prevent premature failure and extend longevity.

• Drop-In Replacement, Simplified Installation: Built to fit within original firebox constraints and mounting points, minimizing service time and easing installation for technicians.

Compatibility

• Raypak ASME Heater Models: 406A and 407A

Additional Info

Need help with the Raypak 017977F Copper Tube Bundle for 406A and 407A heaters with polymer headers? This OEM heat exchanger kit includes tubes, gaskets, bolts, and baffles for a complete replacement. Below are details on installation, performance, and in-store availability.

Complete OEM Tube Assembly

The 017977F bundle comes with everything needed for a full swap. By including copper tubes, gaskets, hardware, and baffles, it eliminates the hassle of sourcing parts separately.

Can I buy the Raypak 017977F copper tube bundle in store today

What comes included in the 017977F kit for a full heater rebuild

How does this OEM kit simplify the replacement process

Why is it better to replace the whole tube bundle instead of patching

Can I bring in my old heat exchanger to match the kit before purchase

Built for 406A and 407A Polymer-Header Units

This kit is engineered specifically for Raypak residential ASME heaters with polymer headers. The design ensures perfect alignment and proper water routing for these models.

How do I confirm my Raypak 406A uses the 017977F tube bundle

Can the 017977F kit be used in both 406A and 407A heaters

Why polymer-header models require this specific copper bundle

Can I check compatibility in store before buying the 017977F kit

Does this OEM kit guarantee proper sealing inside the heater

Restoring Efficiency and Safety

Replacing a scaled or damaged bundle restores heat transfer efficiency and reduces energy waste. It also helps protect against leaks and unsafe heater operation.

How does the 017977F tube bundle improve heater performance

What heater issues indicate the copper tubes need replacing

Can I buy in store and get guidance on proper installation steps

Why restoring heat transfer lowers operating costs over time

What risks come from running a heater with a damaged tube bundle