This page lists 17 electrical connector parts for the 2021 Audi TT, across 8 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 connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. 11 parts of the 17 listed are Repair Harness (5 parts), ABS Wheel Speed Sensor Connector (3 parts) and Ignition Coil Connector (3 parts). The other 5 part types cover the remaining 6 parts.
The 2021 Audi TT was sold with both the 2.0L L4 Turbocharged and the 2.5L L5 Turbocharged. 10 parts fit every engine; the other 7 are engine-specific. Each part shows which engine(s) it fits.
5 brands supply electrical connector parts for the 2021 Audi TT, led by STANDARD MOTOR PRODUCTS (9 parts), VEMO (5 parts) and ÜRO PARTS (1 part), plus 2 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Audi TT. 1 part has it: VEMO V10830080 (Repair Harness). Each part number opens a page with every vehicle that part fits.
A/C Compressor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S2906 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the A/C Compressor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S2906.
ABS Wheel Speed Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2021 TT engines | S3138 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Terminal Gender: FemaleTerminal Type: Blade | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 TT engines | ALH252 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Right | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 TT engines | ALH253 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left | View on Amazon |
This table covers the harness connectors at each ABS wheel-speed sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 ABS Wheel Speed Sensor Connector parts for the 2021 Audi TT come from STANDARD MOTOR PRODUCTS. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L5 Turbocharged.
This group includes STANDARD MOTOR PRODUCTS S3138, STANDARD MOTOR PRODUCTS ALH252 and STANDARD MOTOR PRODUCTS ALH253.
Ignition Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S2869 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ÜRO PARTS Fits: 2.0L L4 Turbocharged | 1J0973724 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | TTS Quattro | View on Amazon |
| WELLS Fits: 2.5L L5 Turbocharged | 1P2648 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Ignition Coil. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Ignition Coil Connector parts for the 2021 Audi TT come from 3 brands — STANDARD MOTOR PRODUCTS, ÜRO PARTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS S2869, ÜRO PARTS 1J0973724 and WELLS 1P2648.
Oil Pressure Sender / Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.5L L5 Turbocharged | S2893 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
This table covers the harness connectors at the Oil Pressure Sender / Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2021 Audi TT — STANDARD MOTOR PRODUCTS S2893.
Parking Aid Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: all 2021 TT engines | 2HAR0060 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 TT engines | S2316 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalNumber of Splice Connectors Included: 3 | View on Amazon |
This table covers the harness connectors at the Parking Aid Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Parking Aid Sensor Connector parts for the 2021 Audi TT come from 2 brands — HOLSTEIN and STANDARD MOTOR PRODUCTS. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L5 Turbocharged.
Part numbers include HOLSTEIN 2HAR0060 and STANDARD MOTOR PRODUCTS S2316.
Parking Brake Actuator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2021 TT engines | S3298 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
This table covers the harness connectors at the Parking Brake Actuator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S3298.
Repair Harness
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Popular Fits: all 2021 TT engines | V10830080 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes: Expert Kits | View on Amazon |
| VEMO Fits: all 2021 TT engines | V24830035 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes: Expert Kits | View on Amazon |
| VEMO Fits: all 2021 TT engines | V10830101 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grade: Q+2-Pole, Cable Length 315mm | View on Amazon |
| VEMO Fits: 2.0L L4 Turbocharged | V10830104 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grade: Q+6-Pin, Cable Length 317mm | View on Amazon |
| VEMO Fits: all 2021 TT engines | V10830094 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Repair harnesses.
5 Repair Harness parts for the 2021 Audi TT come from VEMO. The "Popular" part is VEMO V10830080. 4 parts fit every engine; the other 1 is engine-specific.
Part numbers include VEMO V10830080, VEMO V24830035 and VEMO V10830101, among others listed above.
Starter Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S3235 | 🇺🇸 US 🇨🇦 CA | TT Quattro | View on Amazon |
This table covers the harness connectors at the Starter Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S3235.
Buying Electrical Connector Parts for a 2021 Audi TT
On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.
- Match the engine first. Some electrical connector 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, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Repair Harness and ABS Wheel Speed Sensor Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2021 Audi TT?
Our catalog currently lists 17 electrical connector parts for the 2021 Audi TT across 8 subcategories and 5 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 electrical connector parts differ between 2021 Audi TT engines?
Some do. 10 parts fit every engine; the other 7 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 electrical connector problems on a 2021 Audi TT?
Common symptoms include intermittent faults that move when the harness is wiggled, green corrosion inside a plug, or melted connector housings near heat sources. 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, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
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 match the connector by terminal count and keyway, not just appearance — many families look identical but will not lock. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Audi TT
Electrical Connector 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.