41 Cooling system parts are listed for the 2021 Audi S8, in 10 part types, covering the 4.0L V8 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Audi S8, 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. 27 parts of the 41 listed are Coolant / Antifreeze (14 parts), Water Pump (8 parts) and Radiator Fan Assembly (5 parts). The other 7 part types cover the remaining 14 parts.
The 2021 Audi S8 came with a single engine, the 4.0L V8 Turbocharged, and every part is verified against it.
21 brands supply cooling system parts for the 2021 Audi S8, led by PRESTONE (5 parts), PEAK (4 parts) and VEMO (4 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 2021 Audi S8. 7 parts have it, including PRESTONE AF3100 (Coolant / Antifreeze) and VEMO V10010014 (Radiator Fan Assembly). 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 |
|---|---|---|---|---|
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US 🇲🇽 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 |
| PRESTONE Popular | AF6510 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | MAX European Violet1 Gallon | 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 | AFMAX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN | ACE010 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VioletSi-OAT | View on Amazon |
| PEAK | PEV1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OET European Extended Life Violet1 Gallon | View on Amazon |
| PENTOSIN | 8114306 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pentofrost E1 Gallon | View on Amazon |
| PENTOSIN | 8113106 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pentofrost E1.5 Liters | View on Amazon |
| PENTOSIN | 8113206 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pentofrost E5 Liters | View on Amazon |
| VALVOLINE | 904683 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HT-12 Pink1 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.
14 Coolant / Antifreeze parts are listed for the 2021 Audi S8, from PRESTONE, PEAK, PENTOSIN and 2 other brands. PRESTONE AF3100 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 PEAK supply 2 parts: the catalog's value-priced group. A representative part number is PRESTONE AF3100.
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 6 options from PENTOSIN, AISIN, PEAK and 1 other brand — built to original-equipment specification. AISIN ACE010 is listed in this group.
Coolant Hose Flange Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS | 357121140 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Plug Kit with Plug and O-Ring | View on Amazon |
This table covers the Coolant Hose Flange plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes.
One part is listed for the 2021 Audi S8 — ÜRO PARTS 357121140.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | T111 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | 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.
This group shows a single part: MOTORAD T111.
Radiator Fan Assembly
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Popular | V10010014 | 🇺🇸 US 🇲🇽 MX | Right | View on Amazon |
| TECHPRO | AU3115124 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VEMO | V15011943 | 🇺🇸 US 🇲🇽 MX | Right400W | View on Amazon |
| VEMO | V15011942 | 🇺🇸 US 🇲🇽 MX | Fits Left400W | View on Amazon |
| VEMO | V15011946 | 🇺🇸 US 🇲🇽 MX | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
5 Radiator Fan Assembly parts for the 2021 Audi S8 come from 2 brands — VEMO and TECHPRO. The "Popular" part is VEMO V10010014.
Part numbers include VEMO V10010014, TECHPRO AU3115124 and VEMO V15011943, among others listed above.
Radiator Insulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VNE | 41000073 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Upper | View on Amazon |
| VNE | 41000074 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Lower | View on Amazon |
This table covers the Radiator insulators.
2 Radiator Insulator parts for the 2021 Audi S8 come from VNE.
Listed part numbers: VNE 41000073 and VNE 41000074.
Radiator Insulator Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN | AVM0730 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Radiator Insulator sleeves.
This group shows a single part: REIN AVM0730.
Radiator Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN | AVM0729 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Upper | View on Amazon |
This table covers the Radiator mounts. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.
This group shows a single part: REIN AVM0729.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 1814521 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Straight Connector | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Popular | 2112035 | 🇺🇸 US 🇲🇽 MX | Sensor Only | View on Amazon |
| NISSENS | 207067 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Oval Connector, bolted connection | View on Amazon |
| STANDARD MOTOR PRODUCTS | TX336 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VNE | 9418050 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RADIATOR | 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 2021 Audi S8, from GPD, WALKER PRODUCTS, NISSENS and 2 other brands. WALKER PRODUCTS 2112035 carries the "Popular" badge.
Economy: 1 part, from GPD. A representative part number is GPD 1814521.
The Standard Replacement section: 4 options from WALKER PRODUCTS, NISSENS, STANDARD MOTOR PRODUCTS and 1 other brand. WALKER PRODUCTS 2112035 is listed in this group.
Listed part numbers: WALKER PRODUCTS 2112035, GPD 1814521 and NISSENS 207067, plus the other parts above.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN | THRVG0018 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Thermostat Seal | View on Amazon |
| CALORSTAT | TE7368107J | 🇺🇸 US 🇲🇽 MX | 225.0 F Degrees | View on Amazon |
| MOTORAD | 1331225 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes housings, sensor, seal | 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.
3 Thermostat parts for the 2021 Audi S8 come from 3 brands — AISIN, CALORSTAT and MOTORAD.
Part numbers include AISIN THRVG0018, CALORSTAT TE7368107J and MOTORAD 1331225.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular | 1312513 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Alternator CoolingAuxiliary | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 41568E | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Electric | View on Amazon |
| FOUR SEASONS | 89085 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AuxiliaryHeater Water Pump | View on Amazon |
| FOUR SEASONS | 89084 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary | View on Amazon |
| NISSENS | 832121 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Alternator CoolingAuxiliary | View on Amazon |
| PIERBURG | 708002030 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Electric | View on Amazon |
| PIERBURG | 704071650 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Electric | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 358304701 | 🇺🇸 US 🇲🇽 MX | AlternatorAuxiliary | 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.
8 Water Pump parts for the 2021 Audi S8 come from 6 brands — FOUR SEASONS, PIERBURG, BECK/ARNLEY and 3 other brands. The "Popular" part is BECK/ARNLEY 1312513.
The Economy section: 1 option from BECK/ARNLEY. BECK/ARNLEY 1312513 is listed in this group.
Standard Replacement: 6 parts, from FOUR SEASONS, PIERBURG, GATES and 1 other brand. A representative part number is GATES 41568E.
1 further part sits outside the graded sections, with the same engine-level match.
This group includes BECK/ARNLEY 1312513, GATES 41568E and FOUR SEASONS 89085 and the remaining parts above.
Buying Cooling System Parts for a 2021 Audi S8
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 4.0L 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 Water Pump .
Frequently Asked Questions
How many cooling system parts fit the 2021 Audi S8?
Our catalog currently lists 41 cooling system parts for the 2021 Audi S8 across 10 subcategories and 21 brands, covering the 4.0L V8 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2021 Audi S8?
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 Audi S8 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 Audi S8?
Every part on this page is matched to the 4.0L 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 Audi S8
Cooling System Parts for Other Audi S8 Years
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