Chrysler Eng Mount Insert(Spool) 73+

The Chrysler Eng Mount Insert (Spool) 73+ is a premium polyurethane motor mount component engineered to reduce powertrain movement and vibration in classic Mopar A-Body, B-Body, and E-Body vehicles from 1973 onward. This direct replacement insert addresses the wear and deterioration that stock rubber mounts experience over decades, restoring control and precision to your engine's suspension. Built for small block Mopar, B-series, and RB-series engines, this spool-style insert is essential for owners seeking improved responsiveness and reduced noise without requiring a complete engine mount replacement.

Manufactured by Prothane, a leader in polyurethane suspension components, this engine mount insert is crafted from durable black polyurethane that resists oil, heat, and age-related degradation far better than original rubber. The spool design provides optimized stiffness characteristics, limiting excessive engine rock during acceleration and deceleration while maintaining compliance for idle comfort. At just 1.65 lbs and measuring 4.2 x 3.1 x 4.8 inches, the compact insert integrates seamlessly into your existing mount assembly, requiring no modifications to engine bay geometry or ancillary components.

Restoration enthusiasts, street rod builders, and muscle car owners benefit most from this upgrade, as firmer engine mounts deliver noticeable improvements in shifter feel, throttle response, and overall chassis control. Installation is straightforward—the insert slides into your original mount, making it an ideal choice for budget-conscious upgrades or staged restoration projects. This component is fully compatible with 1973–1989 Mopar A-Body, B-Body, and E-Body platforms equipped with small block Mopar or B/RB-series engines, ensuring reliable fitment and long-term durability in both stock and modified applications.