OVERVIEW
Original sealing plug for the specified transmission case
WHT-000-306 is a Genuine VW/Audi M18 x 1.5 x 12 transmission case sealing plug with an internal hex drive. It closes the specified original transmission opening; in the listed TT automatic application, it serves as a fill plug.
Transmission cases have several plugs with different functions and specifications. Match the exact opening and gearbox, rather than assuming this plug fits every drain or fill point. This listing does not include transmission fluid, a separate seal or any other service parts.
Technical details
- Complete factory number: WHT-000-306.
- Factory specification: M18 x 1.5 thread, 12 mm nominal length.
- Design: Broad head with internal hex drive and threaded sealing-plug body.
- Quantity supplied: one individual plug; any separate O-ring or sealing component required by the repair procedure is not included.
These are nominal plug dimensions confirmed by exact-number transmission catalog entries. No unverified drive-bit size, torque, weight or shipping measurements are supplied.
Common reasons to replace
- A rounded hex recess that prevents controlled removal or tightening.
- Damaged threads or an impaired seating surface found during transmission service.
- A missing plug or an incorrect substitute installed at the specified case opening.
Fluid seepage can also come from a separate seal, damaged case threads or a nearby joint. Identify the actual leak source and inspect the receiving opening before selecting replacement parts.
Vehicle fitment
Match the six-speed conventional automatic and original plug location in the table. These applications do not include a DSG or manual gearbox.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi TT | 2003–2006 | 1.8L turbocharged gasoline, 180 hp | 8N Coupe or Roadster, FWD; 6-speed conventional automatic, PR G1A / 09G family | Specified transmission fill plug on the 6-speed Tiptronic automatic; not quattro/manual or 3.2L DSG hardware. |
| Volkswagen Rabbit | 2006–2009 | 2.5L inline-five gasoline | Mk5 hatchback, FWD; 6-speed conventional automatic, PR G1A / 09G family | Original 09G-family automatic transmission case plug; not a manual transmission or engine-oil drain plug. |
| Volkswagen Jetta | 2005–2010 | 2.5L inline-five gasoline | Mk5 sedan, FWD; 6-speed conventional automatic, PR G1A / 09G family | Mk5 2.5L six-speed conventional automatic only; 2005 older-body Jetta excluded. |
| Volkswagen New Beetle Convertible | 2003 | 2.0L gasoline | Convertible, FWD; 6-speed conventional automatic, PR G1A / 09G family | Original G1A six-speed automatic transmission case plug; verify gearbox identification. |
| Volkswagen Jetta SportWagen | 2014 | 2.5L inline-five gasoline | Wagon, FWD; 6-speed conventional automatic, PR G1A / 09G family | Original 09G conventional automatic case plug; excludes TDI DSG. Confirm the full factory plug number. |
| Volkswagen Passat | 2008 | 2.0L turbocharged gasoline | B6 sedan or wagon, FWD; 6-speed conventional automatic, PR G1A / 09G family | Original six-speed conventional automatic case plug; confirm 09G-family gearbox and exact opening. |
Installation guidance
Identify the correct service opening before removal and follow the factory fluid-level procedure for the exact gearbox. Use the specified separate sealing component where required and protect the open case from contamination.
Start the plug by hand and tighten to the factory specification for that opening. Recheck sealing and complete the prescribed fluid-level and operational checks.
Ordering information
New and unused inventory. Sold individually as WHT-000-306. Confirm the complete original number, gearbox identification and any separately required seal before ordering.