Prothane 7-506BL GM Engine Mount Small Clamshell Insert, Polyurethane, Black, 1973-1993

Upgrade the engine mounting system in your compatible GM vehicle with the Prothane 7-506BL Engine Mount Small Clamshell Insert. Designed for 1973-1993 GM applications, this polyurethane replacement insert helps restore the support and stability needed for reliable drivetrain performance. Its black finish provides a clean, factory-style appearance while the durable construction is engineered for demanding automotive use.
The Prothane 7-506BL insert is manufactured from performance-oriented polyurethane, offering greater resistance to wear, deterioration, and deformation than many conventional rubber components. By helping control excessive engine movement, this insert can support more consistent power transfer and reduce unwanted drivetrain motion during acceleration, shifting, and everyday driving. It is intended for use with the compatible GM small clamshell engine mount configuration and should be matched to the specific vehicle application before installation.
Designed as a practical replacement or performance upgrade, the Prothane engine mount insert supports long-term durability without requiring a complete change to the vehicle’s mounting system. The kit format helps simplify replacement, while the precision-focused design promotes proper fitment when used with the correct GM application. Professional installation or inspection is recommended to verify compatibility and ensure all mounting hardware is properly secured.
Feature: Polyurethane engine mount insert designed for durable performance
Feature: Black finish for a clean, understated appearance
Feature: Compatible with select 1973-1993 GM small clamshell engine mount applications
Feature: Helps limit excessive engine and drivetrain movement
Feature: Prothane part number 7-506BL for application-specific replacement needs

Features:

• Polyurethane construction designed for durable performance

• Black finish for a clean, understated appearance

• Compatible with select 1973-1993 GM small clamshell engine mount applications

• Helps limit excessive engine and drivetrain movement

• Prothane part number 7-506BL for application-specific replacement needs