2026 BMW X6 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

4 Coolant / Antifreeze parts for the 2026 BMW X6 come from 2 brands — VALVOLINE and PRESTONE. 3 parts fit every engine; the other 1 is engine-specific.

The Economy section lists 1 option from VALVOLINE — the catalog's value-priced group. VALVOLINE 719009 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 Standard Replacement grade, VALVOLINE supplies 1 part: built to original-equipment specification. A representative part number is VALVOLINE 904685.

1 further part sits outside the graded sections, with the same engine-level match.

Listed part numbers: VALVOLINE 719009, PRESTONE AFC12100 and VALVOLINE 904685, plus the other parts above.

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

REIN supplies both parts for the 2026 BMW X6. All of them fit every engine offered in the 2026 X6.

Listed part numbers: REIN EPT0277 and REIN EPK0277.

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

6 Coolant Reservoir Cap parts are listed for the 2026 BMW X6, from MOTORAD and REIN. 2 parts fit every engine; the other 4 are engine-specific.

Listed part numbers: MOTORAD T76, MOTORAD T64 and MOTORAD T65, plus the other parts above.

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

3 Radiator parts for the 2026 BMW X6 come from 2 brands — CSF and UAC.

This group includes CSF 4009, CSF 4011 and UAC RA14004C.

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

One part is listed for the 2026 BMW X6 — TYC 625170.

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 2026 BMW X6 come from 2 brands — NISSENS and STANDARD MOTOR PRODUCTS. Every part fits both the 3.0L L6 Turbocharged and the 4.4L V8 Turbocharged.

This group includes NISSENS 207110 and STANDARD MOTOR PRODUCTS TS658.

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 are listed for the 2026 BMW X6, from MOTORAD and REIN.

Part numbers include MOTORAD TA3156 and REIN CTA0028.