Engine Mounts - Max Load Under 220 lbs.

R&D Marine

Part No. 800-003



  • Description
    • Designed for marine use, accepts propeller and engine thrust in both directions.
    • Offers a fail safe design.
    • Are height adjustable.
    • Pre-loaded to reduce movement.
    • Slotted holes in base to assist in alignment.
    • Mount types to fit all applications.

    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 pasivated to limit corrosion. The rubber component is covered by an oil shield to protect it from petroleum based products.

    R&D Marine mounts are pre-loaded based on the combined engine and transmission weight to limit engine movement. To facilitate in the ease of installation the mounts are height adjusting and the mounting holes in the base of the mount are slotted to assist in alignment of the drivetrain.

    Available for most brands such as Yanmar, Perkins, Universal, Westerbeke, and many more.

  • Technical Specifications

    Part # Stud Size Capacity Per Mount Foot Print Mount Pre-Loaded Deflection Minimum Height Maximum Height
    800-038 12mm 30 - 90 lbs 4" 0.07" 0.07" - 0.14" 2.03" 3.9"
    800-040 5/8 UNF 30 - 91 lbs 4" 0.07" 0.07" - 0.14" 2.03" 3.9"
    800-039 12mm 70 - 170 lbs 4" 0.07" 0.07" - 0.14" 2.03" 3.9"
    800-041 5/8 UNF 70 - 171 lbs 4" 0.07" 0.07" - 0.14" 2.03" 3.9"
    800-037 5/8 UNF 50 - 175 lbs 4" 0.09" 0.09" - 0.21" 3.05" 5.38"
    800-037Y 5/8 UNF 50 - 175 lbs 6.85" 0.09" 0.09" - 0.21" 3.94" 6.28"
    800-062 3/4 UNF 50 - 176 lbs 4" 0.09" 0.09" - 0.21" 3.47" 5.38"
    800-003 5/8 UNF 100 - 180 lbs 4" 0.06" 0.09" 2.3" 4.58"
    800-033 5/8 UNF 190 lbs 4" 0.065" 0.09" 2.21" 5.37"

Customer Reviews

Based on 3 reviews
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M
M.L.
5/5

Yanmar Engine Mount Kits

E
E.M.
Best decision I made

I had these installed on my Yanmar 4JH3-HTE 2 years ago and I can say this was the best decision for my boat. Immediately after installing the engine mounts and starting the motor you could feel the difference in the amount vibration that gets transmitted through the hull.
At the advice of my installer (Marine Max) in Coco FL they said to buy the heavy duty mounts for both sides and not just the starboard side as recommended by the manufacturer.
With the reduced vibration and keeping the engine from shifting out of alignment with the shaft these mounts have reduced my amount of repairs and maintenance.

J
J.M.
Motor mounts

Great got parts within two days

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