Automatic Transmission Kick Down Relay - 928 | 1983-1991 644-502-064-05 Porsche Bosch ignition switch with

Porsche Bosch ignition switch with two keys for models with an independent starter button or a three step (off/on/starter) switch

powerful combustion

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Automatic Transmission Kick Down Relay - 928 | 1983-1991 644-502-064-05 Porsche Bosch ignition switch withAutomatic Transmission Kick Down Relay For Porsche 928 (1983 1991) Models. Keep your Porsche 928's transmission performing at its peak with this Automatic Transmission Kick down Relay. This critical component manages the communication between your throttle and transmission, enabling instantaneous downshifts when you demand power. Whether cruising or accelerating hard, the relay ensures smooth, predictable gear changes that match your driving input.