26 Ignition parts are listed for the 2021 Audi TT, in 4 part types, covering both the 2.0L L4 Turbocharged and the 2.5L L5 Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Audi TT, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. 23 parts of the 26 listed are Ignition Coil (13 parts), Camshaft Position Sensor (5 parts) and Spark Plug (5 parts). The other 1 part type covers the remaining 3 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.
The most listed brands for 2021 Audi TT ignition parts are WALKER PRODUCTS (3 parts), WELLS (3 parts) and HOLSTEIN (2 parts), plus 13 more brands. Quality grades include Standard Replacement, Economy and Iridium.
5 parts on this 2021 Audi TT page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WALKER PRODUCTS 2352067 (Camshaft Position Sensor) and DELPHI GN10632 (Ignition Coil). Click any part number to see every vehicle that part fits.
Camshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 2.5L L5 Turbocharged | 2CAM0327 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Popular Fits: 2.5L L5 Turbocharged | 2352067 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor OnlyConnector Shape: Oval | View on Amazon |
| BECK/ARNLEY Fits: 2.5L L5 Turbocharged | 1800763 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ÜRO PARTS Fits: 2.5L L5 Turbocharged | 06M907601D | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 2.5L L5 Turbocharged | 5S17018 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the sensors that report camshaft position to the ECU. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
5 Camshaft Position Sensor parts are listed for the 2021 Audi TT, from HOLSTEIN, WALKER PRODUCTS, BECK/ARNLEY and 2 other brands. WALKER PRODUCTS 2352067 carries the "Popular" badge.
In the Economy grade, HOLSTEIN supplies 1 part: the catalog's value-priced group. A representative part number is HOLSTEIN 2CAM0327.
The Standard Replacement section lists 4 options from WALKER PRODUCTS, BECK/ARNLEY, ÜRO PARTS and 1 other brand — built to original-equipment specification. WALKER PRODUCTS 2352067 is listed in this group.
Listed part numbers: WALKER PRODUCTS 2352067, HOLSTEIN 2CAM0327 and BECK/ARNLEY 1800763, plus the other parts above.
Crankshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.5L L5 Turbocharged | PC1248 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS Fits: 2.5L L5 Turbocharged | 2352351 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
| WELLS Fits: 2.5L L5 Turbocharged | 5S16170 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the sensors that report crankshaft position and engine speed. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
3 Crankshaft Position Sensor parts are listed for the 2021 Audi TT, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS PC1248, WALKER PRODUCTS 2352351 and WELLS 5S16170.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 2.5L L5 Turbocharged | 2IGC0516 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| PRENCO Fits: 2.5L L5 Turbocharged | 368278 | 🇺🇸 US 🇨🇦 CA | Includes 36-2150 Boot Kit | View on Amazon |
| SKP Fits: 2.5L L5 Turbocharged | SKUF716 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Hitachi design | View on Amazon |
| ULTRA-POWER Fits: 2.5L L5 Turbocharged | 5C1904 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular Fits: 2.5L L5 Turbocharged | GN10632 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular Fits: 2.5L L5 Turbocharged | 0986221072 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| KARLYN / BREMI / STI Popular Fits: 2.5L L5 Turbocharged | 20529 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bremi-STI Direct Ignition Coil Unit | View on Amazon |
| BECK/ARNLEY Fits: 2.5L L5 Turbocharged | 1788574 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| DENSO Fits: 2.5L L5 Turbocharged | 6739206 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Direct Ignition Coil or Coil On Plug | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.5L L5 Turbocharged | UF716 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: 2.5L L5 Turbocharged | COP618 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Body code FV | View on Amazon |
| WALKER PRODUCTS Fits: 2.5L L5 Turbocharged | 9212313 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Single Coil | View on Amazon |
| WELLS Fits: 2.5L L5 Turbocharged | 5C1904 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off.
13 Ignition Coil parts are listed for the 2021 Audi TT, from HOLSTEIN, PRENCO, SKP and 10 other brands. DELPHI GN10632 carries the "Popular" badge.
Economy: 4 parts, from HOLSTEIN, PRENCO, SKP and 1 other brand. A representative part number is HOLSTEIN 2IGC0516.
The Premium section lists 1 option from DELPHI — a step above OE specification in materials, tolerances or warranty terms. DELPHI GN10632 is listed in this group.
The Standard Replacement section: 8 options from BOSCH, KARLYN / BREMI / STI, BECK/ARNLEY and 5 other brands. BOSCH 0986221072 is listed in this group.
Spark Plug
Summary: Notes include pre-set gaps of 0.025", 0.028" and 0.032". Replacement brands in this table include CHAMPION, BOSCH and NGK.
Double Platinum (lasts up to 3x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION Fits: 2.5L L5 Turbocharged | 7600 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Double Platinum PowerPre-Set Gap: 0.028" | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular Fits: 2.5L L5 Turbocharged | 8501 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | EVOPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION Fits: 2.5L L5 Turbocharged | 9069 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IridiumPre-Set Gap: 0.032" | View on Amazon |
| NGK Fits: 2.5L L5 Turbocharged | 94712 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Laser Iridium High Ignitability | View on Amazon |
| SKP Fits: 2.5L L5 Turbocharged | SK91006 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Gap 0.028" | View on Amazon |
This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine.
5 Spark Plug parts for the 2021 Audi TT come from 4 brands — CHAMPION, BOSCH, NGK and 1 other brand. The "Popular" part is BOSCH 8501.
The Double Platinum (lasts up to 3x longer than Copper / Nickel) section lists 1 option from CHAMPION — grouped under the catalog's "Double Platinum (lasts up to 3x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. CHAMPION 7600 is listed in this group.
In the Iridium (lasts up to 4x longer than Copper / Nickel) grade, BOSCH, CHAMPION, NGK and 1 other brand supply 4 parts: grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is BOSCH 8501.
This group includes BOSCH 8501, CHAMPION 7600 and CHAMPION 9069 and the remaining parts above.
Buying Ignition Parts for a 2021 Audi TT
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Match the engine first. Every ignition 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 plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Ignition Coil and Camshaft Position Sensor .
Frequently Asked Questions
How many ignition parts fit the 2021 Audi TT?
Our catalog currently lists 26 ignition parts for the 2021 Audi TT across 4 subcategories and 16 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 ignition parts differ between 2021 Audi TT engines?
Yes. Every ignition 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 ignition problems on a 2021 Audi TT?
Common symptoms include misfires under load, rough idle, flashing check-engine light, or poor starting in damp weather. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What spark-plug gap is listed for the 2021 Audi TT?
Notes on this page include pre-set gaps of 0.025", 0.028" and 0.032". Still verify against spec — even “pre-gapped” plugs should be checked before they go in.
What should I replace at the same time?
Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
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 gap matters even on “pre-gapped” plugs — verify against spec, and replace coil boots when they come off a high-mileage engine. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Audi TT
Ignition Parts for Other Audi TT Years
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