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Your cart is empty.Prothane's motor mount inserts are crafted out of polyurethane, a material much more durable than rubber that can handle intense weight, heat, and pressure. Designed to fill the voids built into your OE motor mounts, these inserts will drastically increase the power transfer efficiency from your engine to the wheels. Since the voids were initially put there to reduce NVH, it stands to reason that filling in those voids will have the opposite effect. Installing Prothane's motor mount inserts may increase your NVH, but the increase to overall performance is worth it to some drivers. To top it all off, Prothane's motor mount inserts are covered by a lifetime warranty
Francisco
Reviewed in the United States on December 22, 2024
No es nada fácil la instalación pero si se puede y quedaron súper bienThe locating tabs had to be cut 1/4" to get the bolt through.
JR
Reviewed in the United States on June 14, 2023
The mounts are stiff at first and to be expected. The locating tabs had to be cut 1/4" to get the bolt through. (See scribe line in picture)Shipping was a day later than expected but that was ok.
Jeffro
Reviewed in the United States on April 22, 2023
Great product. Strong. Delivered quickly and all parts needed were included. Best option for Chevy Astro motor mounts.
mattj
Reviewed in the United States on September 14, 2021
Getting my engine rebuilt, wanted the right part. On amazon this says it doesnt fit, but check prothane website- its the right part. The other ones that say they fit are way too small and wobble all around, these fit in the original clamshells so snugly that its a thing of beauty.Best motor mounts available for a chevy astro, s10, or other 4.3 vortec and original clamshell motor mounts
Joe wolf
Reviewed in the United States on June 18, 2019
Only got one side in so far. Not much Increase in vibration. Chevy 4.3 liter.. but I'm liking the feel of the pulse of engine.better to.know what's going on in this old engine 94. With 265k. Mount fit, needed about 1/8th filed back on metal stop. No biggie .. so far so good. Engine stopped twisting..
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