40 Cooling system parts are listed for the 2021 BMW M8, in 7 part types, covering the 4.4L V8 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 BMW M8, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. Most of the listed parts are Coolant / Antifreeze (12 parts), Thermostat (7 parts) and Temperature Sender / Sensor (6 parts). The other 4 part types cover the remaining 15 parts.
Every part on this page is matched to the 4.4L V8 Turbocharged — the only engine offered in the 2021 BMW M8.
The most listed brands for 2021 BMW M8 cooling system parts are PRESTONE (5 parts), PEAK (4 parts) and REIN (3 parts), plus 18 more brands. Quality grades include Standard Replacement, Economy and Premium.
9 parts on this 2021 BMW M8 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including PRESTONE AF3100 (Coolant / Antifreeze) and REIN CPE0034 (Coolant Reservoir Cap). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AF3055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE Popular | 719009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 GallonGlobal Lifetime | View on Amazon |
| PRESTONE | AF6110 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | MAX Original EquipmentEuropean Blue | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN | ACE008 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueHOAT | View on Amazon |
| PEAK | PEB1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OET European Extended Life Blue1 Gallon | View on Amazon |
| VALVOLINE | 904685 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HT-12 Green1 Gallon | View on Amazon |
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.
12 Coolant / Antifreeze parts for the 2021 BMW M8 come from 4 brands — PRESTONE, PEAK, VALVOLINE and 1 other brand. The "Popular" part is PRESTONE AF3100.
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 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.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Popular | CPE0034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RADIATOR | View on Amazon |
| CALORSTAT | RC0084 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Auxiliaryor Radiatorwith Low Capacity Expansion Tank | View on Amazon |
| CALORSTAT | RC0087 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Maximum Pressure Rating: 30.0 PS | View on Amazon |
| MOTORAD | T76 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| REIN | CPE0078 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Intercooler | View on Amazon |
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.
5 Coolant Reservoir Cap parts are listed for the 2021 BMW M8, from REIN, CALORSTAT and MOTORAD. REIN CPE0034 carries the "Popular" badge.
Part numbers include REIN CPE0034, CALORSTAT RC0084 and CALORSTAT RC0087, among others listed above.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE | CR2799000P | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Brazed cooling fins | View on Amazon |
| NISSENS | 606233 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary (Location-Wheel Arch) | View on Amazon |
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.
2 Radiator parts for the 2021 BMW M8 come from 2 brands — MAHLE / CLEVITE and NISSENS.
Part numbers include MAHLE / CLEVITE CR2799000P and NISSENS 606233.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 1814574 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine Block | View on Amazon |
| VEMO | V20720201 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Position: Radiator | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FACET Popular | 73405 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Location-Engine Block | View on Amazon |
| WALKER PRODUCTS Popular | 2112021 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
| WALKER PRODUCTS | 2112104 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
| WELLS | 5S15283 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Located on Cylinder Head | View on Amazon |
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.
6 Temperature Sender / Sensor parts for the 2021 BMW M8 come from 5 brands — WALKER PRODUCTS, GPD, VEMO and 2 other brands. The "Popular" part is FACET 73405.
The Economy section: 2 options from GPD and VEMO. GPD 1814574 is listed in this group.
Standard Replacement: 4 parts, from WALKER PRODUCTS, FACET and WELLS. A representative part number is FACET 73405.
This group includes FACET 73405, GPD 1814574 and VEMO V20720201 and the remaining parts above.
Thermostat
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS | 11537586885 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with O-Ring (101 Degree. C) | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 34245 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Integrated Housing Thermostat | View on Amazon |
| MOTORAD Popular | 606221 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Housing, Sensor, Seal | View on Amazon |
| BECK/ARNLEY | 1430869 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Gasket/Seal, Housing | View on Amazon |
| CALORSTAT | TE7331105J | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 220.0 F Degrees | View on Amazon |
| FOUR SEASONS | 85956 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Housing | View on Amazon |
| REIN | CTA0028 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
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.
7 Thermostat parts are listed for the 2021 BMW M8, from ÜRO PARTS, GATES, MOTORAD and 4 other brands. GATES 34245 carries the "Popular" badge.
Economy: 1 part, from ÜRO PARTS. A representative part number is ÜRO PARTS 11537586885.
The Standard Replacement section: 6 options from GATES, MOTORAD, BECK/ARNLEY and 3 other brands. GATES 34245 is listed in this group.
Listed part numbers: GATES 34245, ÜRO PARTS 11537586885 and MOTORAD 606221, plus the other parts above.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | 36226 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| MAHLE / CLEVITE | C32504 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded Rubber | View on Amazon |
| ÜRO PARTS | 11531440192 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
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.
3 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2021 BMW M8 come from 3 brands — FEL-PRO, MAHLE / CLEVITE and ÜRO PARTS.
This group includes FEL-PRO 36226, MAHLE / CLEVITE C32504 and ÜRO PARTS 11531440192.
Water Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular | 0392023486 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary Water Pump | View on Amazon |
| BOSCH | 0392023525 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary Water Pump | View on Amazon |
| BOSCH | 039202411V | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary Water Pump | View on Amazon |
| GRAF | AWP061 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Electric Pump | View on Amazon |
| NISSENS | 832128 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HVAC SystemAuxiliary | View on Amazon |
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.
5 Water Pump parts are listed for the 2021 BMW M8, from BOSCH, GRAF and NISSENS. BOSCH 0392023486 carries the "Popular" badge.
This group includes BOSCH 0392023486, BOSCH 0392023525 and BOSCH 039202411V and the remaining parts above.
Buying Cooling System Parts for a 2021 BMW M8
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Confirm you have the 4.4L V8 Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant / Antifreeze and Thermostat .
Frequently Asked Questions
How many cooling system parts fit the 2021 BMW M8?
Our catalog currently lists 40 cooling system parts for the 2021 BMW M8 across 7 subcategories and 21 brands, covering the 4.4L V8 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2021 BMW M8?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 BMW M8 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 BMW M8?
Every part on this page is matched to the 4.4L V8 Turbocharged engine. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 BMW M8
Cooling System Parts for Other BMW M8 Years
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