2023 Mazda CX-30 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 are listed for the 2023 Mazda CX-30, from PRESTONE, PEAK, VALVOLINE and 3 other brands. PRESTONE AF3100 carries the "Popular" badge.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, PRESTONE, VALVOLINE and PEAK supply 3 parts: the catalog's value-priced group. A representative part number is PRESTONE AF3100.

The Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.

The Premium section lists 5 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 7 options from VALVOLINE, BECK/ARNLEY, AISIN and 2 other brands — built to original-equipment specification. VALVOLINE 861398 is listed in this group.

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

2 Coolant Hose / Pipe Seal parts for the 2023 Mazda CX-30 come from MAHLE / CLEVITE.

Listed part numbers: MAHLE / CLEVITE C33805 and MAHLE / CLEVITE C33644.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

2 Coolant Reservoir parts for the 2023 Mazda CX-30 come from TECHPRO.

Part numbers include TECHPRO MA3014119 and TECHPRO MA3014120.

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

This group shows a single part: MOTORAD T16R.

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

MOTORAD supplies both parts for the 2023 Mazda CX-30.

This group includes MOTORAD 3121 and MOTORAD 3122.

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

4 Radiator parts are listed for the 2023 Mazda CX-30, from GPD, CSF, NISSENS and 1 other brand.

Economy: 1 part, from GPD. A representative part number is GPD 13998C.

The Standard Replacement section: 1 option from CSF. CSF 3968 is listed in this group.

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

Listed part numbers: GPD 13998C, CSF 3968 and NISSENS 607138, plus the other parts above.

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

MOTORAD supplies the 3 Radiator Cap parts for the 2023 Mazda CX-30.

The Locking Replacement section lists 1 option from MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. MOTORAD ST16R is listed in this group.

The Standard Replacement section: 1 option from MOTORAD. MOTORAD T16R is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

Part numbers include MOTORAD ST16R and MOTORAD T16R, among others listed above.

This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator. Read more

4 Radiator Fan Assembly parts for the 2023 Mazda CX-30 come from 4 brands — GPD, FOUR SEASONS, NISSENS and 1 other brand.

The Economy section: 1 option from GPD. GPD 2812469 is listed in this group.

Standard Replacement: 3 parts, from FOUR SEASONS, NISSENS and TYC. A representative part number is FOUR SEASONS 76413.

This group includes GPD 2812469, FOUR SEASONS 76413 and NISSENS 850660 and the remaining parts above.

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

7 Temperature Sender / Sensor parts are listed for the 2023 Mazda CX-30, from GPD, HOLSTEIN, DELPHI and 3 other brands. GPD 1712514 carries the "Popular" badge.

Economy: 2 parts, from GPD and HOLSTEIN. A representative part number is GPD 1712514.

The Standard Replacement section: 4 options from DELPHI, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 1 other brand. DELPHI TS10289 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

Listed part numbers: GPD 1712514, HOLSTEIN 2CTS0413 and DELPHI TS10289, plus the other parts above.

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

5 Thermostat parts for the 2023 Mazda CX-30 come from 5 brands — SKP, MOTORAD, AISIN and 2 other brands. The "Popular" part is MOTORAD TA9249.

The Economy section: 1 option from SKP. SKP SKTA9249 is listed in this group.

Standard Replacement: 4 parts, from MOTORAD, AISIN, BECK/ARNLEY and 1 other brand. A representative part number is MOTORAD TA9249.

This group includes MOTORAD TA9249, SKP SKTA9249 and AISIN THZ008 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

4 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2023 Mazda CX-30, from MAHLE / CLEVITE and FEL-PRO.

This group includes FEL-PRO 36216, MAHLE / CLEVITE C33803 and MAHLE / CLEVITE C33774 and the remaining parts above.

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

2 Thermostat Housing / Water Outlet parts for the 2023 Mazda CX-30 come from 2 brands — FOUR SEASONS and MOTORAD.

Part numbers include FOUR SEASONS 86338 and MOTORAD CH3147.

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

6 Water Pump parts for the 2023 Mazda CX-30 come from 5 brands — FVP, US MOTOR WORKS, AISIN and 2 other brands.

The Economy section: 2 options from FVP and US MOTOR WORKS. FVP US8205 is listed in this group.

Standard Replacement: 2 parts, from AISIN and GATES. A representative part number is AISIN WPZ045.

2 further parts sit outside the graded sections, with the same engine-level match.

Part numbers include FVP US8205 and AISIN WPZ045, among others listed above.

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 are listed for the 2023 Mazda CX-30, from FEL-PRO and MAHLE / CLEVITE.

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