Engine Mounts, Red Polyurethane, Pair, 1972-1991 Models (5.0L, 5.9L/6.6L). Are you experiencing movement in your engine compartment, or hearing bumping or clunking noises? Driving a Jeep for too long with a broken or worn out engine mount can cause severe damage to your engine and/or transmission. This set of red polyurethane engine mounts were manufactured to OE specifications for the highest quality available. Bolt on application for a direct fit and easy installation.