Water pumps, thermostats and associated cooling hardware for classic British cars, covering pumps for the BMC A-Series, B-Series and C-Series engine families alongside Triumph and Rover applications. The water pump and thermostat are the principal moving and regulating components of a classic cooling system, and their correct specification is critical to reliable engine operation.
Water Pumps
Water pumps for British classic engines are typically belt-driven units mounted to the front of the cylinder block or timing cover. Pump specification varied across long production runs of each engine family, BMC B-Series water pumps, for example, differ between three-bearing and five-bearing engines, and again between early and late five-bearing units.
Original-pattern pumps and rebuilt-exchange pumps are stocked alongside modern equivalents, with attention paid to correct pulley diameter, bearing specification and impeller design.
Thermostats
Wax-element thermostats in standard opening temperatures (typically 74°C, 82°C and 88°C) are stocked across the major British classic applications. Thermostat selection should match the original specification, fitting a low-opening thermostat to an engine designed for a higher operating temperature can affect engine efficiency, oil performance and emissions.
Thermostat Housings and Pulleys
Thermostat housings, housing gaskets, water pump pulleys, fan pulleys and the associated cooling system hardware are stocked across the major applications. Where the original housing has corroded, a common condition on aluminium housings exposed to inappropriate coolant, replacement housings are available in original-pattern aluminium and in modern brass alternatives.
Service Kits
Water pump and thermostat service kits combining the pump, thermostat, housing gasket and associated hardware are stocked for popular applications, providing an efficient way to address the cooling system as a planned service rather than as a reactive repair. The MGOC Spares British Classic Car Parts Water Pump & Thermostat range encompasses water pumps, thermostats, thermostat housings, gaskets, pulleys and cooling system hardware for the British classics we serve. MGOC Spares is constantly expanding our range for these non-MG British classic marques, and new lines are being added to this section regularly.
If a part you need is not yet listed online, please contact our team at sales@mgocspares.co.uk or 01954 230928, we may be able to source it, and your enquiry helps us prioritise future stock.