These are replacement inner motor mounts for the front crossbar on side-shift 914s in hard nylon.
The original mounts are prone to splitting apart, you may not even know it until you remove the motor! A word of caution, these hard mounts will transmit more vibration, but improve your shifting and keep the engine from moving around. Experience smoother shifts with JWest Rennshift products from PMB. Explore the full line of Jwest Engineering shifters designed for Porsche.
Sold as a pair with new hardware.