VERY NICE USED ORIGINAL GENUINE PORSCHE 911 930 CRUISE CONTROL MODULE 1974-77. This product data sheet is originally written in English. Here is a nice used original Porsche cruise control module 911.617.121.03 as used on 1974-77 911 and 930 models. We at Retro Automotive Products are a small, family owned business located high in the Green Mountains of Vermont that specializes in providing high quality, rare and hard to find original NEW/USED/NOS Porsche parts and accessories.