PRL Motorsports Rear engine mount upgrade (Honda Civic 17-21 FK6/FK7/FK8))

Overview

Over the years, we have heard the same gripes about motor mounts over and over again from owners in each community: "My car rattles so bad ever since I installed my motor mount." We've heard your voices and developed a proper solution.

Our rear motor mount utilizes two press-fit 60A EPDM bushings, unlike most other aftermarket mounts on the market. We collected real-world data and feedback from numerous different vehicles and drivers to develop a one-size-fits-all design that perfectly suits any application.

The core design of our mount is an I-beam. I-beams work excellent for mounts and connecting rods because of their resistance to bending, stress, vibration and reflection. We were able to add a significant amount of material to increase rigidity and strength over the factory. All bushings are press-fit into our precision-machined billet 6061 aluminum motor mount assembly. This press-fit connection eliminates any possible gap to ensure that there are no metallic vibrations or noises, allowing the EPDM to absorb any engine or chassis vibration. Bushing shells and center inserts are Zinc-coated to aid in corrosion resistance.

Why EPDM?

EPDM is the perfect bushing material because of its high resistance to outside atmospheric elements (heat, ozone, weather), chemicals, solvents, abrasives, tearing and vibration. Because EPDM has a higher density than urethane, this means we are able to use a softer/lower durometer bushing to keep engine vibration to a minimum, all while improving rigidity in comparison to the factory mount(s). Unlike urethane bushing inserts, EPDM bushings will not mushroom, wallow out or breakdown over time with use. There's a reason this type of bushing is used by OE