Prothane 7-525-BL Black Corvette Urethane Engine Mount Insert Set

The Prothane 7-525-BL is a polyurethane engine mount insert set designed to reduce engine movement and improve drivetrain response on C5 and C6 Corvettes (1997–2013). These black urethane inserts fit directly into the factory engine mount housings, eliminating the need to replace the entire mount assembly.

Prothane's specially formulated urethane compound is firmer than OEM rubber, effectively reducing engine torque flex under hard acceleration and aggressive driving conditions. This translates to improved throttle response, sharper shifting feel, and better launch traction by keeping the drivetrain more precisely aligned under load.

Key Features:

• Manufactured from high-durometer polyurethane for long-lasting durability
• Black urethane finish (BL suffix)
• Drop-in insert design — retains OEM mount brackets and hardware
• Reduces engine movement during hard acceleration and shifting
• Improves traction and drivetrain alignment under load
• Resistant to oil, heat, and chemicals common in engine bay environments
• Made in the USA

Prothane urethane components are engineered as a direct upgrade over factory rubber, delivering performance handling characteristics without the extreme harshness of solid mounts. The 7-525-BL is a straightforward upgrade for Corvette owners looking to tighten up drivetrain feel on the street or track.