2025 Mazda CX-5 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

10 Coolant / Antifreeze parts are listed for the 2025 Mazda CX-5, from PRESTONE, VALVOLINE and PENTOSIN. PRESTONE AF2100 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 and VALVOLINE supply 2 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 3 options from PRESTONE — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 3 options from VALVOLINE and PENTOSIN — 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

This group shows a single part: MAHLE / CLEVITE C33644.

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

This group shows a single part: TECHPRO MA3014125.

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

One part is listed for the 2025 Mazda CX-5 — MOTORAD 3121.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

4 Intercooler parts are listed for the 2025 Mazda CX-5, from GPD, NISSENS, TECHPRO and 1 other brand.

Listed part numbers: GPD 2711337, NISSENS 961545 and TECHPRO MA3012100, plus the other parts above.

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

This group shows a single part: 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

4 Radiator parts are listed for the 2025 Mazda CX-5, from TECHPRO, CSF and TYC.

Economy: 2 parts, from TECHPRO. A representative part number is TECHPRO MA3010244.

The Standard Replacement section: 2 options from CSF and TYC. CSF 3941 is listed in this group.

Listed part numbers: TECHPRO MA3010244, TECHPRO MA3010249 and CSF 3941, 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 both parts for the 2025 Mazda CX-5.

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.

Listed part numbers: MOTORAD ST16R and MOTORAD T16R.

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

2 Radiator Fan Assembly parts for the 2025 Mazda CX-5 come from 2 brands — TECHPRO and TYC.

The Economy section: 1 option from TECHPRO. TECHPRO MA3115175 is listed in this group.

Standard Replacement: 1 part, from TYC. A representative part number is TYC 624950.

This group includes TECHPRO MA3115175 and TYC 624950.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

2 Radiator Hose parts for the 2025 Mazda CX-5 come from 2 brands — CONTINENTAL and GATES.

Part numbers include CONTINENTAL 60425 and GATES 52500.

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

5 Temperature Sender / Sensor parts are listed for the 2025 Mazda CX-5, from GPD, HOLSTEIN, NISSENS and 2 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: 3 options from NISSENS, STANDARD MOTOR PRODUCTS and WELLS. NISSENS 207098 is listed in this group.

Listed part numbers: GPD 1712514, HOLSTEIN 2CTS0413 and NISSENS 207098, 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

2 Thermostat parts for the 2025 Mazda CX-5 come from 2 brands — FOUR SEASONS and MOTORAD.

Listed part numbers: FOUR SEASONS 86366 and MOTORAD 1073190.

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

5 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2025 Mazda CX-5, from MAHLE / CLEVITE and FEL-PRO. MAHLE / CLEVITE C33695 carries the "Popular" badge.

Listed part numbers: MAHLE / CLEVITE C33695, FEL-PRO 36216 and FEL-PRO 36184, plus the other parts above.

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

2 Thermostat Housing / Water Outlet parts for the 2025 Mazda CX-5 come from 2 brands — FOUR SEASONS and MOTORAD.

Part numbers include FOUR SEASONS 86338 and MOTORAD CH3154.