Weiand 6-71/14-71 Rear Pop-Off Valve Kit WEI7155

The Weiand Rear Pop-Off Valve Kit (Part #7155) is a precision-engineered supercharger safety and performance component designed for Weiand 6-71 and 14-71 roots-style superchargers. Mounted at the rear of the blower manifold, this pop-off plate is built to help relieve excess intake pressure during backfire or overboost conditions, protecting the supercharger system from internal damage.

Manufactured by Weiand, a trusted name in high-performance forced induction systems, this component is built for durability, race-proven reliability, and exact fitment on compatible blower setups. Ideal for drag racing, marine, and high-performance street applications where blower protection and system safety are critical.

Specifications (Google Merchant Center Format)

Key Features

• Designed for Weiand 6-71 and 14-71 supercharger systems
• Rear-mounted pop-off safety valve design
• Helps protect blower from pressure spikes and backfire damage
• Precision-machined aluminum construction
• Race-proven reliability for high-boost applications
• Direct replacement / service part for Weiand blower kits

Fitment / Application

• Weiand 6-71 Roots Superchargers
• Weiand 8-71 / 14-71 compatible blower systems
• Racing and performance forced induction setups