Baxi Hydraulic Inlet Assembly — Part No. 5132454 (12 L, No Bypass)

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Sale price£109.95 GBP
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Baxi 12 L Hydraulic Inlet Assembly — 5132454

Restore reliable hot water and heating changeover on Duo-tec / Platinum family boilers. This OEM 12-litre hydraulic inlet (without bypass) forms part of the diverter/manifold section, stabilising incoming mains water and routing flow correctly for DHW or CH.

Key Features

  • Baxi spare: 5132454 — 12 L hydraulic inlet, no bypass.
  • Durable all-brass body with factory ports for sensors/valves.
  • Direct-fit replacement; no re-piping or adaptors needed.
  • Supplied new; seals/ancillaries as provided by manufacturer.

Typical Compatibility*

  • Baxi Duo-tec Combi HE A 28/33, Duo-tec / Duo-tec ErP, Platinum / Platinum ErP, Gold / Gold ErP, Heatmax/Promax Combi HE ranges
  • Main Eco Elite / Eco Elite ErP
  • Potterton Promax Combi / Promax Combi HE (selected models)

*Coverage varies by production run. Always confirm by matching the exact part number 5132454 to your boiler’s exploded diagram.

Common Symptoms

  • Intermittent hot water or temperature “hunting”
  • Poor DHW/CH changeover or flow-related fault codes
  • Leaks from the manifold/inlet block

What’s in the Box

  • 1 × 12 L hydraulic inlet assembly — Baxi 5132454 (without bypass)

Install & Safety

Isolate power and water, depressurise, replace the assembly with new seals, then refill, bleed and test DHW/CH operation. Must be installed by a Gas Safe registered engineer.

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