Prothane 7-1904 GM Truck Polyurethane Motor & Transmission Mount Combo Kit

The Prothane 7-1904 is a complete polyurethane motor and transmission mount combo kit engineered as a direct, application-specific upgrade over worn factory rubber mounts. Designed for GM trucks, this kit delivers firmer drivetrain support, improved power transfer, and significantly greater durability than OEM rubber components.

Factory rubber mounts deteriorate over time, leading to excessive engine and transmission movement that causes vibration, noise, and accelerated drivetrain wear. Prothane's polyurethane construction resists oil, chemicals, and road contaminants that quickly break down rubber, making it a long-lasting performance solution for street and track use.

Key Features:

• Application-specific engineering — precision-fit design matched to exact OEM mounting dimensions, not a universal fit
• Polyurethane construction — tough and durable, yet compliant enough to absorb vibration unlike solid metal mounts
• Internal run-safe metal interlock — mechanically interlocking steel insert provides a safety failsafe to keep the drivetrain secure even under extreme stress
• Limits unwanted engine and transmission movement — controls torque and reduces the risk of mount breakage
• Improved power transfer — reduced drivetrain flex puts more power to the wheels
• Resistant to oil, chemicals, and road contaminants — outlasts OEM rubber mounts in harsh conditions
• Available in Red or Black — Black version sold as part number 7-1904-BL
• Hardware included — complete kit for straightforward installation

Backed by Prothane's lifetime warranty to the original purchaser, the 7-1904 combo kit is a proven upgrade for GM truck owners looking to tighten up their drivetrain and extend component life.