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We have supplied many M75-20B-BLK for B series Cummins over the years. We actually worked with Cummins on their new Konrad leg B series diesel package and supply direct to Cummins. They use our mounts on this package as it has high demands and they wanted the superior mount. Our mounts are actually dearer to manufacture than the Barry mounts, but by the time they go through a major engine manufacturer, the margins become huge. We have in actual fact replaced many Barry mounts due to premature failure in commercial vessels in particular.

As for the modification to the mounting arm, if it is successful for the Barry mounts on the Bertrams, it will have no different using ours then.

This will be an interesting job, as he is used to the very smooth gas engines and going to an oil burner which have a much higher idle energy signature. We expect 90% isolation at 650rpm idle.

I would be recommending the BLACK (70) duro.

Please ensure when the mounts are fitted that the load on each mount is as close to equal as possible. Otherwise you end up with the old rocking table in a restaurant scenario. This can be achieved by checking each mount “squashes” down the same during the alignment process.