Baxi Duo-tec 12L Hydraulic Inlet Assembly – Refurbished | Part No. 5132454

The hydraulic inlet assembly on a Baxi Duo-tec 12-litre combi boiler houses several key components in a single manifold unit — typically including the pressure relief valve, automatic air vent, pressure gauge, filter, and fill loop connections. When this assembly develops a fault — through a weeping PRV, blocked filter, failed air vent, or cracked manifold body — it can cause persistent pressure loss, system noise, air ingestion, or an inability to maintain correct operating pressure. The Baxi Duo-tec 12L Hydraulic Inlet Assembly (Part No. 5132454) is the correct OEM replacement that restores the full hydraulic front-end functionality of your boiler.

This is a professionally refurbished genuine Baxi hydraulic inlet assembly. Each unit is fully stripped and inspected — all internal seals, O-rings, the PRV cartridge, and the air vent float mechanism are examined and replaced as required. The reassembled unit is pressure-tested across the full operating range to confirm correct PRV actuation, leak-free connections, and proper air vent operation before dispatch. You receive full OEM-spec hydraulic performance at a meaningful saving over a new replacement assembly.

Compatible Boiler Models

OEM Quality. Proven Performance. Backed by Warranty.

Every refurbished hydraulic inlet assembly we supply is fully pressure-tested before dispatch. This 5132454 assembly restores correct system pressure management, eliminates weeping PRV symptoms, resolves persistent air ingestion faults, and ensures the boiler's hydraulic front end operates within designed parameters. Supplied with a full 12-month warranty, it provides outstanding value for Baxi Duo-tec hydraulic repairs.

Delivery & Returns

Orders placed before 1:00 PM (Mon–Fri) are dispatched the same working day, with standard (2–3 working days), next-day, and Saturday delivery options available at checkout. Returns are accepted within 30 days, provided the item is unused and in its original packaging.

Note: This assembly is specifically for 12-litre Duo-tec models. Please confirm that part number 5132454 and the 12L designation match your existing boiler specification before ordering. Installation must be carried out by a Gas Safe registered engineer to ensure safety compliance and warranty validity.