2024 Mazda CX-50 Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

17 Coolant / Antifreeze parts for the 2024 Mazda CX-50 come from 6 brands — PRESTONE, PEAK, VALVOLINE and 3 other brands. The "Popular" part is PRESTONE AF3100. Every part fits both the 2.5L L4 and the 2.5L L4 Turbocharged.

In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.

The Economy section lists 3 options from PRESTONE, VALVOLINE and PEAK — the catalog's value-priced group. PRESTONE AF3100 is listed in this group.

In the Heavy Duty grade, PRESTONE supplies 1 part: rated for severe service. A representative part number is PRESTONE AFC12100.

In the Premium grade, PRESTONE and PEAK supply 5 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

In the Standard Replacement grade, VALVOLINE, BECK/ARNLEY, AISIN and 2 other brands supply 7 parts: built to original-equipment specification. A representative part number is VALVOLINE 861398.

This table covers the seals at the Coolant Hose / Pipe. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2024 Mazda CX-50 — MAHLE / CLEVITE C33644.

This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

One part is listed for the 2024 Mazda CX-50 — MOTORAD T16R.

This table covers the adapters used to pressure-test this cooling system. Read more

2 Cooling System Tester Adapter parts for the 2024 Mazda CX-50 come from MOTORAD. Every part fits both the 2.5L L4 and the 2.5L L4 Turbocharged.

Part numbers include MOTORAD 3121 and MOTORAD 3122.

This table covers the gaskets that seal the Intercooler. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

One part is listed for the 2024 Mazda CX-50 — MAHLE / CLEVITE GS34075.

This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap. Read more

This group shows a single part: FVP RAD13972.

This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

This group shows a single part: MOTORAD T16R.

This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender. Read more

2 Temperature Sender / Sensor parts for the 2024 Mazda CX-50 come from 2 brands — GPD and NISSENS. Every part fits both the 2.5L L4 and the 2.5L L4 Turbocharged.

The Economy section: 1 option from GPD. GPD 1712514 is listed in this group.

Standard Replacement: 1 part, from NISSENS. A representative part number is NISSENS 207098.

This group includes GPD 1712514 and NISSENS 207098.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

4 Thermostat parts are listed for the 2024 Mazda CX-50, from MOTORAD, CALORSTAT and FOUR SEASONS.

This group includes CALORSTAT TH741888J, FOUR SEASONS 14646 and MOTORAD 1464169 and the remaining parts above.

This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

6 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2024 Mazda CX-50 come from 2 brands — MAHLE / CLEVITE and FEL-PRO. 1 part fits every engine; the other 5 are engine-specific.

Part numbers include FEL-PRO 36216, MAHLE / CLEVITE C33803 and MAHLE / CLEVITE C33774, among others listed above.

This table covers the housings and outlets the thermostat sits in. Read more

3 Thermostat Housing / Water Outlet parts are listed for the 2024 Mazda CX-50, from MOTORAD and FOUR SEASONS. 1 part fits every engine; the other 2 are engine-specific.

Listed part numbers: FOUR SEASONS 86029, MOTORAD CH6129 and MOTORAD CH3098.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

10 Water Pump parts are listed for the 2024 Mazda CX-50, from FVP, DAYCO, GATES and 2 other brands. DAYCO DP1899B carries the "Popular" badge.

Economy: 1 part, from FVP. A representative part number is FVP US8205.

The Standard Replacement section: 5 options from DAYCO, GATES, AISIN and 1 other brand. DAYCO DP1899B is listed in this group.

4 ungrouped parts are not assigned to a grade, with the same engine-level match.

This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

2 Water Pump Gasket parts for the 2024 Mazda CX-50 come from 2 brands — FEL-PRO and MAHLE / CLEVITE. Every part fits both the 2.5L L4 and the 2.5L L4 Turbocharged.

This group includes FEL-PRO 36188 and MAHLE / CLEVITE C33643.