2021 BMW X7 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

13 Coolant / Antifreeze parts for the 2021 BMW X7 come from 4 brands — PRESTONE, PEAK, VALVOLINE and 1 other brand. The "Popular" part is PRESTONE AF3100. Every part fits both the 3.0L L6 Turbocharged and the 4.4L V8 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, AISIN, PEAK and VALVOLINE supply 3 parts: built to original-equipment specification. A representative part number is AISIN ACE008.

This table covers the bleeders used to purge air from the coolant circuit. Read more

DORMAN supplies both parts for the 2021 BMW X7.

Part numbers include DORMAN 902404 and DORMAN 902404HP.

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

9 Coolant Reservoir parts are listed for the 2021 BMW X7, from TECHPRO, MAHLE / CLEVITE, REIN and 1 other brand. TECHPRO BM3014116 carries the "Popular" badge.

This group includes TECHPRO BM3014116, ÜRO PARTS 17135A6A031 and MAHLE / CLEVITE CRT302000S and the remaining parts above.

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

8 Coolant Reservoir Cap parts are listed for the 2021 BMW X7, from REIN, CALORSTAT and MOTORAD. MOTORAD T64 carries the "Popular" badge. 2 parts fit every engine; the other 6 are engine-specific.

Listed part numbers: MOTORAD T64, REIN CPE0034 and CALORSTAT RC0084, 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

8 Radiator parts for the 2021 BMW X7 come from 6 brands — CSF, ULTRA-POWER, TYC and 3 other brands. The "Popular" part is ULTRA-POWER 13783.

The Economy section: 1 option from ULTRA-POWER. ULTRA-POWER 13783 is listed in this group.

Standard Replacement: 5 parts, from CSF, TYC, AGILITY and 1 other brand. A representative part number is TYC 13783.

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

This group includes ULTRA-POWER 13783 and AGILITY 8013783 and the remaining parts above.

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

6 Radiator Fan Assembly parts are listed for the 2021 BMW X7, from GPD, TECHPRO, TYC and 3 other brands. TYC 625170 carries the "Popular" badge. 2 parts fit every engine; the other 4 are engine-specific.

Economy: 2 parts, from GPD and TECHPRO. A representative part number is GPD 2812286.

The Standard Replacement section: 4 options from TYC, FOUR SEASONS, UAC and 1 other brand. TYC 625170 is listed in this group.

Part numbers include TYC 625170, GPD 2812286 and TECHPRO BM3115151, among others listed above.

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

One part is listed for the 2021 BMW X7 — GATES 52456.

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

10 Temperature Sender / Sensor parts for the 2021 BMW X7 come from 6 brands — WALKER PRODUCTS, GPD, STANDARD MOTOR PRODUCTS and 3 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TS658. 9 parts fit every engine; the other 1 is engine-specific.

The Economy section: 3 options from GPD and VEMO. GPD 1814545 is listed in this group.

Standard Replacement: 7 parts, from WALKER PRODUCTS, STANDARD MOTOR PRODUCTS, FACET and 1 other brand. A representative part number is 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

5 Thermostat parts are listed for the 2021 BMW X7, from MOTORAD, DORMAN, SKP and 1 other brand.

Economy: 2 parts, from DORMAN and SKP. A representative part number is DORMAN 9025954.

The Standard Replacement section: 2 options from MOTORAD. MOTORAD 1120221 is listed in this group.

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

Listed part numbers: DORMAN 9025954, SKP SK1120221 and MOTORAD 1120221, plus the other 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

3 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2021 BMW X7 come from 3 brands — ELRING, FEL-PRO and MAHLE / CLEVITE.

Listed part numbers: ELRING 071220, FEL-PRO 36226 and MAHLE / CLEVITE C32504.

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

One part is listed for the 2021 BMW X7 — VEMO V20990005.

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

8 Water Pump parts are listed for the 2021 BMW X7, from BOSCH, NISSENS, FVP and 2 other brands. BOSCH 0392023486 carries the "Popular" badge. 4 parts fit every engine; the other 4 are engine-specific.

This group includes BOSCH 0392023486, BOSCH 0392023509 and BOSCH 039202411V and the remaining parts 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

This group shows a single part: AJUSA 01732500.