Mazda 3 Thermostat
Replacement thermostat — fitment, symptoms & live UK prices.
Fits Mazda 3 — check your reg/VIN to confirm

From £14.36 · 6 live listings on eBay
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Thermostat for Mazda Bongo 2.5DT MX-3 MX-6 Xedos B2500 82 degrees
£14.36View ›

MAZDA 3 SPORT 2.0 PETROL THERMOSTAT HOUSING 5603485 4431421 4S4G-AB 2003-09
£15.68View ›

Mazda 3 (BL, BK) 1.6 Diesel 2004-2013 Thermostat Housing + Seal
£15.99View ›

Thermostat W/ Housing & Sensor For Ford C-Max EcoSport Fiesta Focus 1.5 1.6 TDCi
£16.98View ›

Coolant Thermostat fits MAZDA MX5 Mk3 1.8 2.0 05 to 14 NAPA LF5015170C LF7015170
£17.87View ›

For Mazda 3 2003-2014 2.0 Napa Coolant Thermostat NTH1065
£20.98View ›
Will it fit my Mazda 3?
Increasingly sold as a full housing unit with an integrated sensor on newer engines — check whether yours is thermostat-only or housing-and-all.
Tip: filter by your reg on eBay's compatibility check, or match the part number stamped on your old unit.
Signs your Mazda 3 thermostat needs replacing
- Temp gauge slow to rise or overheating
- Poor heater performance (stuck open)
- Overheating in traffic (stuck shut)
- Coolant warning light
Fitting it yourself
Usually a housing with 2–3 bolts and a coolant hose — straightforward, but refill and bleed the cooling system properly after.
See Thermostat prices on eBayMore Mazda 3 parts
Live pricesFrom £14.36
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