Our exclusive. These purpose-built test fittings replace the standard banjo bolt at the mixture controller of models 300d and 300SL, providing a secure port to the vacuum control circuit. We supply two versions:
- Open, with pass-through fitting which allows live monitoring of the vacuum circuit for testing and tuning of the fuel injection pump.
- Closed, for testing the integrity of the vacuum circuit and injection pump diaphragm with the engine off.
Sold individually or as a set of two.