Prothane Engine Mount Set

Why Prothane Engine Mount Sets Stand Apart

When a factory rubber engine mount starts to wear, the consequences go beyond a little extra vibration. A degraded mount allows the engine to shift under hard acceleration, robbing power from the wheels, upsetting drivetrain alignment, and potentially causing damage to surrounding components. Prothane's Engine Mount Sets were engineered specifically to address these shortcomings — not by simply replacing rubber with rubber, but by substituting it with a precisely formulated polyurethane compound that fundamentally changes how your engine connects to the chassis.

The Polyurethane Advantage

Prothane's motor mounts are built from a special-formula polyurethane that holds its shape far better than rubber under the thermal and mechanical stress of a running engine. Unlike rubber, which breaks down when exposed to heat, engine fluids, road salts, and general oxidation, Prothane's polyurethane resists these elements, contributing to dramatically longer service life. The material is also notably stiffer than OEM rubber, which tightens the engine-to-frame connection and delivers a measurable improvement in throttle response — the kind of feedback that performance drivers and daily drivers alike appreciate when pulling away from a stop or navigating highway on-ramps.

For drivers who want all the stability of a solid metal racing mount without the punishing NVH that comes with it, Prothane's polyurethane motor mounts occupy the ideal middle ground. They firm up the motor's footing enough to reduce unwanted engine movement and minimize wheel hop, while still absorbing enough vibration to remain livable on public roads.

Mount Sets and Mount Insert Sets

Prothane's Engine Mount Set lineup covers two complementary approaches. Their full-replacement motor mounts swap out the entire OEM unit with a new polyurethane-based assembly, providing a comprehensive solution for vehicles with worn or failed mounts. Their motor mount insert sets are designed to fill the engineered voids in your existing OEM metal mounts — a cost-effective upgrade that delivers performance gains similar to a complete mount swap. Both designs are application-specific, meaning each part is engineered to the exact geometry required for a precise fit in a particular vehicle. Prothane covers a wide range of domestic and import nameplates, from classic American muscle to Japanese performance vehicles.

Prothane's engine mount sets are available in their signature red polyurethane or in black, which features a small amount of graphite in the compound to help reduce the potential for squeaking during use. Performance between the two is identical — the choice is purely a matter of preference.

Built in the USA, Backed for Life

Prothane has been manufacturing high-performance urethane products in the USA since 1991, growing from fewer than 100 part numbers to an extensive catalog spanning thousands of applications. Every engine mount set carries Prothane's Lifetime Warranty, a reflection of the confidence the brand places in its proprietary polyurethane formula and precision manufacturing standards. Whether you're building a dedicated track car, restoring a classic, or simply tired of replacing flimsy OEM rubber mounts, Prothane's engine mount sets offer a long-term solution backed by decades of performance urethane expertise.