How long should engine mounts last?

[Hoboat]

How long should engine mounts on 450 hp Cummings diesels last? I recently hired a Cummings licensed repair company to check out some electrical problems I was having.

They came back telling me that all eight engine mounts needed to be replaced at well over $2,000. Had they told me one or two were bad, I mights have believed them, but all eight on both engines? My boat is only 2 1/2 years old, has about 380 hours on the engines and I experience no unusual vibration.

Being a little skeptical, I had the Cummings dealership itself check it out. Result? Nothing wrong with the engine mounts.

 

[Golfman25]

They certainly should last more than 2.5 years. Did they tell you why they need replacement? Unless there is in reasonably articulate reason, I would call BS. Good luck.

 

[pdecat]

IMO they should last forever unless there is some other problem causing failure. Mine are 10 years old and I see no deterioration. Do yours have the big 1" or so bolts??

PS some boat makers supply their own mounts and dont use the ones Cummins recommend.

 

[saltysam]

I believe this is a case of potential fraud. Contact the factory and get their opinion.
A worthwhile use of some telephone service.

 

[Al_Prisco]

Looks like you where being taken advantage of. I belive its called theft by disception.