36 Cooling system parts are listed for the 2020 BMW I8, in 10 part types, covering the 1.5L L3 ELECTRIC/GAS Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2020 BMW I8, 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), Coolant Reservoir Cap (5 parts) and Temperature Sender / Sensor (5 parts). The other 7 part types cover the remaining 14 parts.
The 2020 BMW I8 came with a single engine, the 1.5L L3 ELECTRIC/GAS Turbocharged, and every part is verified against it.
21 brands supply cooling system parts for the 2020 BMW I8, led by PRESTONE (5 parts), PEAK (4 parts) and MOTORAD (3 parts), plus 18 more brands. Quality grades include Standard Replacement, Premium and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 BMW I8. 5 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and MOTORAD T64 (Coolant Reservoir Cap). Each part number opens a page with 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 |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | 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 are listed for the 2020 BMW I8, from PRESTONE, PEAK, FVP and 2 other brands. FVP MV5050GAL 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, FVP, PRESTONE and PEAK supply 3 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.
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 3 options from AISIN, PEAK and VALVOLINE — built to original-equipment specification. AISIN ACE008 is listed in this group.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | CH2765 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes SealPipe | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
One part is listed for the 2020 BMW I8 — MOTORAD CH2765.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 283410 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Material: FPM (Fluoride Rubber) | View on Amazon |
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.
This group shows a single part: ELRING 283410.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN | EPT0014 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Leftwithout Cap | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
This group shows a single part: REIN EPT0014.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | T64 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| CALORSTAT | RC0084 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary | View on Amazon |
| CALORSTAT | RC0083 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Maximum Pressure Rating: 20.0 PS | View on Amazon |
| MOTORAD | T76 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| REIN | CPE0035 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Right | 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 for the 2020 BMW I8 come from 3 brands — MOTORAD, CALORSTAT and REIN. The "Popular" part is MOTORAD T64.
Part numbers include MOTORAD T64, CALORSTAT RC0084 and CALORSTAT RC0083, among others listed above.
Inverter Cooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM | CU13714 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary UnitLow Temperature | View on Amazon |
This table covers the Inverter coolers. Typical signs include overheated fluid, a leak at the fittings, or mixed fluids in the reservoir. Flush the lines when you replace a cooler.
This group shows a single part: SPECTRA PREMIUM CU13714.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AGILITY | 8013714 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Low Temperature Radiator | View on Amazon |
| KOYORAD | A13714 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | External Oil Cooler | View on Amazon |
| NISSENS | 606517 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Brazed cooling fins | View on Amazon |
| UAC | RA13714C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
4 Radiator parts are listed for the 2020 BMW I8, from AGILITY, KOYORAD, NISSENS and 1 other brand.
This group includes AGILITY 8013714, KOYORAD A13714 and NISSENS 606517 and the remaining parts above.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2CTS0198 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine Block | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Popular | 2112021 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
| FACET | 73405 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fluid Sensor | View on Amazon |
| WELLS | 5S15283 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Located on Cylinder Head | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NISSENS | 207110 | 🇺🇸 US 🇨🇦 CA | 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.
5 Temperature Sender / Sensor parts are listed for the 2020 BMW I8, from HOLSTEIN, WALKER PRODUCTS, FACET and 2 other brands. WALKER PRODUCTS 2112021 carries the "Popular" badge.
Economy: 1 part, from HOLSTEIN. A representative part number is HOLSTEIN 2CTS0198.
The Standard Replacement section: 3 options from WALKER PRODUCTS, FACET and WELLS. WALKER PRODUCTS 2112021 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Listed part numbers: WALKER PRODUCTS 2112021, HOLSTEIN 2CTS0198 and FACET 73405, plus the other parts above.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 648240 | 🇺🇸 US 🇨🇦 CA | ConvertibleBody code: I12 | View on Amazon |
| FEL-PRO | 36225 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| MAHLE / CLEVITE | C33660 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded Rubber | 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 are listed for the 2020 BMW I8, from ELRING, FEL-PRO and MAHLE / CLEVITE.
This group includes ELRING 648240, FEL-PRO 36225 and MAHLE / CLEVITE C33660.
Water Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | 0392023509 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary Water Pump | View on Amazon |
| BOSCH | 039202411C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary Water Pump | View on Amazon |
| NISSENS | 831361 | 🇺🇸 US 🇨🇦 CA | Fits HVAC SystemAuxiliaryor Turbocharger Cooling | 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.
3 Water Pump parts for the 2020 BMW I8 come from 2 brands — BOSCH and NISSENS.
Listed part numbers: BOSCH 0392023509, BOSCH 039202411C and NISSENS 831361.
Buying Cooling System Parts for a 2020 BMW I8
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 1.5L L3 ELECTRIC/GAS 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 Coolant Reservoir Cap .
Frequently Asked Questions
How many cooling system parts fit the 2020 BMW I8?
Our catalog currently lists 36 cooling system parts for the 2020 BMW I8 across 10 subcategories and 21 brands, covering the 1.5L L3 ELECTRIC/GAS Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2020 BMW I8?
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 2020 BMW I8 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 2020 BMW I8?
Every part on this page is matched to the 1.5L L3 ELECTRIC/GAS 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 2020 BMW I8
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.