The 2026 Audi A8 has 25 engine parts with verified fitment on this page — 8 part types and 15 brands, covering both the 3.0L V6 Turbocharged and the 4.0L V8 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2026 Audi A8, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. 19 parts of the 25 listed are Oil (11 parts), Oil Filter (6 parts) and Cylinder Head Gasket (2 parts). The other 5 part types cover the remaining 6 parts.
The 2026 Audi A8 was sold with both the 3.0L V6 Turbocharged and the 4.0L V8 Turbocharged. 1 part fits every engine; the other 24 are engine-specific. Each part shows which engine(s) it fits.
15 brands supply engine parts for the 2026 Audi A8, led by PENTOSIN (6 parts), LIQUI MOLY (3 parts) and MAHLE / CLEVITE (2 parts), plus 12 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2026 Audi A8. 5 parts have it, including MOBIL 125386 (Oil) and MANN HU7049Z (Oil Filter). Each part number opens a page with every vehicle that part fits.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 3.0L V6 Turbocharged | 55545 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RightRight Side, 0.89mm Thickness, Cylinder 1,2,3 | View on Amazon |
| MAHLE / CLEVITE Fits: 3.0L V6 Turbocharged | 55546 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Layered Steel | View on Amazon |
This table covers the head gaskets that seal the block to the cylinder head. 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.
MAHLE / CLEVITE supplies both parts for the 2026 Audi A8.
Listed part numbers: MAHLE / CLEVITE 55545 and MAHLE / CLEVITE 55546.
Oil
Summary: Notes list SAE 0W-20, SAE 5W-30 and SAE 5W-40. Confirm the engine and the weight on the filler cap before you buy. Replacement brands in this table include PENTOSIN, LIQUI MOLY and MOBIL.
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular Fits: 3.0L V6 Turbocharged | 125386 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ESP X2 0W-20ESP X2 Full Synthetic Motor Oil 0W-20, 1 Quart | View on Amazon |
| PENTOSIN Popular Fits: 3.0L V6 Turbocharged | 8042206 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Performance IIFull Synthetic | View on Amazon |
| PENTOSIN Popular Fits: 3.0L V6 Turbocharged | 8044206 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pento SpeedFull Synthetic | View on Amazon |
| LIQUI MOLY Fits: 3.0L V6 Turbocharged | 20236 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top Tec 6200 0W-201 Liter | View on Amazon |
| LIQUI MOLY Fits: 3.0L V6 Turbocharged | 20238 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top Tec 6200 0W-205 Liter | View on Amazon |
| LIQUI MOLY Fits: 3.0L V6 Turbocharged | 22186 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top Tec 6200 0W-2020 Liter | View on Amazon |
| PENTOSIN Fits: 3.0L V6 Turbocharged | 8044107 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pento SpeedFull Synthetic | View on Amazon |
| PENTOSIN Fits: 3.0L V6 Turbocharged | 8042107 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Performance IIFull Synthetic | View on Amazon |
| PENTOSIN Fits: 3.0L V6 Turbocharged | 8078106 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Super Performance IIIFull Synthetic | View on Amazon |
| PENTOSIN Fits: 3.0L V6 Turbocharged | 8078206 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Super Performance IIIFull Synthetic | View on Amazon |
| VALVOLINE Fits: 3.0L V6 Turbocharged | 888048 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | European Vehicle Full Synthetic SAE 0W-201 Quart | View on Amazon |
This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable.
11 Oil parts for the 2026 Audi A8 come from 4 brands — PENTOSIN, LIQUI MOLY, MOBIL and 1 other brand. The "Popular" part is MOBIL 125386.
Oil Cooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NISSENS Fits: 3.0L V6 Turbocharged | 91445 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the heat exchangers that cool engine oil. Typical signs include oil at the cooler fittings, or coolant that looks like a milkshake. Pressure-test both circuits after a cooler swap — a leak here mixes oil and coolant.
This group shows a single part: NISSENS 91445.
Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: 3.0L V6 Turbocharged | HWP1014 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Steel | View on Amazon |
| REIN Fits: 3.0L V6 Turbocharged | HWU1014 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Aluminum | View on Amazon |
This table covers the drain plugs in the oil pan.
2 Oil Drain Plug parts for the 2026 Audi A8 come from REIN.
Part numbers include REIN HWP1014 and REIN HWU1014.
Oil Filler Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 3.0L V6 Turbocharged | MO153 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the caps on the oil filler neck.
This group shows a single part: MOTORAD MO153.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMP / LUBER-FINER Fits: 3.0L V6 Turbocharged | P1074 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MANN Popular Fits: 3.0L V6 Turbocharged | HU7049Z | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Class: C | View on Amazon |
| WIX Popular Fits: 3.0L V6 Turbocharged | WL10438 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Synthetic Media | View on Amazon |
| ACDELCO Fits: 3.0L V6 Turbocharged | PF702G | 🇺🇸 US 🇨🇦 CA | Gold / Professional | View on Amazon |
| FEL-PRO Fits: 3.0L V6 Turbocharged | OFCS2055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Cap and Filter | View on Amazon |
| VARIOUS MFR Fits: 3.0L V6 Turbocharged | PO99500EX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Life | View on Amazon |
This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive.
6 Oil Filter parts for the 2026 Audi A8 come from 6 brands — CHAMP / LUBER-FINER, MANN, WIX and 3 other brands. The "Popular" part is MANN HU7049Z.
The Economy section lists 1 option from CHAMP / LUBER-FINER — the catalog's value-priced group. CHAMP / LUBER-FINER P1074 is listed in this group.
In the Standard Replacement grade, MANN, WIX, ACDELCO and 2 other brands supply 5 parts: built to original-equipment specification. A representative part number is MANN HU7049Z.
Part numbers include MANN HU7049Z, CHAMP / LUBER-FINER P1074 and WIX WL10438, among others listed above.
Oil Filter Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 3.0L V6 Turbocharged | MO374 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Oil Filter covers.
One part is listed for the 2026 Audi A8 — MOTORAD MO374.
Oil Level Sensor Gasket / O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: all 2026 A8 engines | 01899000 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Oil Level Sensor Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
This group shows a single part: AJUSA 01899000.
Buying Engine Parts for a 2026 Audi A8
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Match the engine first. Some engine parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Oil and Oil Filter .
Frequently Asked Questions
How many engine parts fit the 2026 Audi A8?
Our catalog currently lists 25 engine parts for the 2026 Audi A8 across 8 subcategories and 15 brands, covering both the 3.0L V6 Turbocharged and the 4.0L V8 Turbocharged. Each part is matched to the engine(s) it fits.
Do engine parts differ between 2026 Audi A8 engines?
Some do. 1 part fits every engine; the other 24 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of engine problems on a 2026 Audi A8?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What oil viscosity is listed for the 2026 Audi A8?
Oil rows on this page include SAE 0W-20, SAE 5W-30 and SAE 5W-40. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.
What should I replace at the same time?
Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
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 2026 Audi A8 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 2026 Audi A8?
First match the engine — each row shows which engine(s) the part fits. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2026 Audi A8
Engine Parts for Other Audi A8 Years
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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.