Prothane 7-506-BL GM Small Clamshell Polyurethane Engine Motor Mount Kit

The Prothane 7-506-BL is an application-specific polyurethane engine motor mount kit designed for GM cars and trucks equipped with the small clamshell-style mounting bracket. Unlike universal-fit alternatives, this mount is engineered to exact OEM dimensions, ensuring a direct-fit installation using your existing clamshell brackets.

Prothane's polyurethane construction provides significantly firmer engine support compared to factory rubber mounts, which are prone to cracking, tearing, and separating from their brackets over time. By reducing unwanted engine movement, these mounts help minimize drivetrain slop, improve throttle response, and deliver more power to the wheels.

Key Features:

• Direct-fit design engineered specifically for GM small clamshell engine mount applications
• High-performance polyurethane construction for superior durability over OEM rubber mounts
• Black (BL) color formulation includes a small amount of graphite blended into the polyurethane to help reduce squeaking
• Limits engine travel and reduces the risk of mount breakage under hard use
• Poly-locked "run-safe" feature provides added security if a mount is pushed beyond its limits
• Sold as a pair — includes both driver and passenger side mounts
• Includes installation instructions; requires reuse of existing clamshell brackets

Prothane backs all of its polyurethane parts with a lifetime warranty against defects in materials and workmanship for the original purchaser. Proper lubrication with the supplied grease at installation is recommended to ensure long-term, squeak-free performance.