This page lists 20 belt drive parts for the 2021 Audi TT, across 2 part types, covering both the 2.0L L4 Turbocharged and the 2.5L L5 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 Audi TT, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys. All 20 listed parts are Belt (13 parts) and Belt Tensioner (7 parts).
The 2021 Audi TT was sold with both the 2.0L L4 Turbocharged and the 2.5L L5 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
9 brands supply belt drive parts for the 2021 Audi TT, led by CONTINENTAL (6 parts), GATES (4 parts) and DAYCO (2 parts), plus 6 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Audi TT. 4 parts have it, including GATES K060445 (Belt) and CONTINENTAL 49485 (Belt Tensioner). Each part number opens a page with every vehicle that part fits.
Belt
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 2.0L L4 Turbocharged | K060445 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Micro-V | View on Amazon |
| CONTINENTAL Fits: 2.0L L4 Turbocharged | 445K6MK | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mileage MakerSerpentine | View on Amazon |
| DAYCO Fits: 2.0L L4 Turbocharged | 5060445DR | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Drive Rite®Serpentine | View on Amazon |
| FVP Fits: 2.0L L4 Turbocharged | 445K6 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi V-BeltSerpentine | View on Amazon |
| ROADMAX Fits: 2.0L L4 Turbocharged | 6K445AP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | V-RibbedSerpentine | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Popular Fits: 2.0L L4 Turbocharged | 4060445 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi V-BeltSerpentine | View on Amazon |
| ACDELCO Fits: 2.0L L4 Turbocharged | 6K445 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| BANDO Fits: 2.0L L4 Turbocharged | 6PK1130 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rib Quantity: 6Effective Length: 1130.0 mm | View on Amazon |
| CONTINENTAL Fits: 2.0L L4 Turbocharged | 6PK1130 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Metric LineSerpentine | View on Amazon |
| DAYCO Fits: 2.0L L4 Turbocharged | 5060445 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Serpentine | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Fits: 2.5L L5 Turbocharged | 4050590 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi V-BeltSerpentine | View on Amazon |
| CONTINENTAL Fits: 2.5L L5 Turbocharged | 5PK1500 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Metric LineSerpentine | View on Amazon |
| GATES Fits: 2.5L L5 Turbocharged | K050590 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Micro-V | View on Amazon |
This table covers the serpentine and accessory belts that drive the front accessories. Typical signs include squeal on cold start, cracks across the ribs, or glazing on the back of the belt. A new belt on a worn tensioner will squeal within weeks — spin the idlers by hand while the belt is off.
13 Belt parts for the 2021 Audi TT come from 7 brands — CONTINENTAL, GATES, DAYCO and 4 other brands. The "Popular" part is GATES K060445.
The Economy section lists 5 options from GATES, CONTINENTAL, DAYCO and 2 other brands — the catalog's value-priced group. GATES K060445 is listed in this group.
In the Standard Replacement grade, CONTINENTAL, ACDELCO, BANDO and 1 other brand supply 5 parts: built to original-equipment specification. A representative part number is CONTINENTAL 4060445.
3 further parts sit outside the graded sections, with the same engine-level match.
Belt Tensioner
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 2.0L L4 Turbocharged | V108919 | 🇺🇸 US 🇨🇦 CA | TT Quattro | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Popular Fits: 2.0L L4 Turbocharged | 49485 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-V | View on Amazon |
| GATES Popular Fits: 2.0L L4 Turbocharged | 39397 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Performance Package | View on Amazon |
| ACDELCO Fits: 2.0L L4 Turbocharged | 39397 | 🇺🇸 US 🇨🇦 CA | Professional / Gold | View on Amazon |
| GATES Fits: 2.0L L4 Turbocharged | 39272 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Performance Package | View on Amazon |
| LITENS Fits: 2.0L L4 Turbocharged | 950427A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| LITENS Fits: 2.0L L4 Turbocharged | 950385A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Performance Package | View on Amazon |
This table covers the automatic tensioners that hold belt tension. Typical signs include belt flutter, a chirp that returns after a new belt, or a damper that no longer holds the arm. Replace the tensioner with the belt at higher mileage; the labor overlaps almost entirely.
7 Belt Tensioner parts are listed for the 2021 Audi TT, from GATES, LITENS, VAICO and 2 other brands. CONTINENTAL 49485 carries the "Popular" badge.
Economy: 1 part, from VAICO. A representative part number is VAICO V108919.
The Standard Replacement section: 6 options from GATES, LITENS, CONTINENTAL and 1 other brand. CONTINENTAL 49485 is listed in this group.
Listed part numbers: CONTINENTAL 49485, VAICO V108919 and GATES 39397, plus the other parts above.
Buying Belt Drive Parts for a 2021 Audi TT
On this vehicle, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys.
- Match the engine first. Every belt drive part here is 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 tensioner and idler pulleys with any belt at higher mileage — the labor overlaps almost entirely.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Belt and Belt Tensioner .
Frequently Asked Questions
How many belt drive parts fit the 2021 Audi TT?
Our catalog currently lists 20 belt drive parts for the 2021 Audi TT across 2 subcategories and 9 brands, covering both the 2.0L L4 Turbocharged and the 2.5L L5 Turbocharged. Each part is matched to the engine(s) it fits.
Do belt drive parts differ between 2021 Audi TT engines?
Yes. Every belt drive part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 belt drive problems on a 2021 Audi TT?
Common symptoms include squealing on cold start, a belt that shows cracking or glazing, or an accessory that slows under load. 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 tensioner and idler pulleys with any belt at higher mileage — the labor overlaps almost entirely.
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 TT 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 TT?
First match the engine — each row shows which engine(s) the part fits. Then a new belt on a worn tensioner will squeal within weeks — check tensioner damping and idler bearings while the belt is off. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Audi TT
Belt Drive Parts for Other Audi TT 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.