The R&D Marine Engine Mounts are designed specifically for the rigors of marine applications. The mounts are stiff enough to absorb forward and reverse propeller thrust, yet soft enough to isolate drivetrain vibrations from the hull.
To help increase the longevity of the mounts, all steel parts are zinc plated and passivated to limit corrosion. The rubber component is covered by an oil shield to protect it from petroleum-based products.
R&D Marine mounts are preloaded based on the combined engine and transmission weight to limit engine movement. To facilitate the ease of installation the mounts are height adjusting and the mounting holes in the base of the mount are slotted to assist in the alignment of the drivetrain.
| Engine Mount Kit | Capacity Per Mount | Mount Pre-Loaded | Height Adjusting Thickness | Max Height | Stud Size | Deflection |
| UN40584KIT | 30 - 91 lbs | 0.07" | 0.55" | 3.9" | 5/8" | 0.07" - 0.14" |
| UN41584KIT | 70 - 171 lbs | 0.07" | 0.55" | 3.9" | 5/8" | 0.07" - 0.14" |
| UN37584KIT | 50 - 175 lbs | 0.09" | 0.55" | 5.38" | 5/8" | 0.09" - 0.21" |
| UN33584KIT | 190 lbs | - | 0.55" | - | 5/8" | 0.065 |
| UN10584KIT | 80 - 230 lbs | 0.09" | 0.55" | 5.38" | 5/8" | 0.09" - 0.21" |
