Vauxhall - Opel - HU43 - Transponder Key Shell Do you need to replace your Vauxhall or Opel key shell? Look no further than the Vauxhall - Opel - HU43 - Transponder Key Shell. This key shell is the perfect solution for replacing your old, worn out key shell. Easy to install and fits perfectly onto your existing key. Compatible with Vauxhall and Opel vehicles. Made from high-quality materials for long-lasting use. Works with most HU43 transponder keys. Experience convenience and reliability with the Vauxhall - Opel - HU43 - Transponder Key Shell. Don't settle for anything less than the best when it comes to replacing your key shell. This key shell is the perfect solution for getting your key back into working order.