• 4508 Motor Mount Inserts - 5.9L Diesel
  • 4508 Motor Mount Inserts - 5.9L Diesel
  • 4508 Motor Mount Inserts - 5.9L Diesel
  • 4508 Motor Mount Inserts - 5.9L Diesel
  • 4508 Motor Mount Inserts - 5.9L Diesel
  • 4508 Motor Mount Inserts - 5.9L Diesel

Motor Mount Inserts - 5.9L Diesel

Manufacturer: Prothane
Part Number: 4508
Rating 2 Reviews


Price: $27.57

In Stock Ships Immediately


Motor Mount Inserts - Dodge Ram 2500 - Prothane 4508

Fits 5.9L Diesel Models Only
FitmentMotor Mount Inserts - 5.9L Diesel 4508 fits these vehicles:
  • 2 of Motor Mount Inserts - 69208
  • 2 of Motor Mount Inserts - 69209
  • Lifetime Warranty. Prothane guarantees all Prothane Suspension Parts to be free of defects in materials and workmanship (not due to abuse, neglect or misapplication) for the total time the vehicle remains with the original purchaser of the product(s). Should the products fail to meet these conditions, Prothane will replace the product, free of charge. This excludes any and all related labor charges. The product must be shipped to Prothane (postage prepaid) along with a copy of the original receipt."

Prothane Motor Mount Inserts

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 handled in-house here at DST.

Prothane Motor Mount Inserts Box

Prothane Motor Mount Inserts

OE Motor Mounts

OE motor mounts are usually made out of metal with holes strategically placed to keep most of the engine's vibrations from traveling to the cab. While the OE mounts are decent for the daily driver, the weekend warrior or straight up racer will probably look for an upgrade. Prothane's Polyurethane motor mount inserts offer a great performance boost equal to that of a solid motor mount, without the higher cost.

Prothane 4508

Product Reviews for Motor Mount Inserts 4508

Prothane 4508

3 out of 5 based on 2 user reviews. Write a Review

I bought these to help my motor mounts last longer off-road. That did not happen. They really did not help at all. They also caused a ton of vibration. They have been in the garbage for months now. I wish there was a way to attach pics. Editors Note: Because the the inserts fill the voids of the OEM mounts it will cause more noise and vibration (NVH). Also the these inserts are poly urethane and the material is much stiffer. The NVH will be much more noticeable especially with the Cummins diesel engine.
1 out of 5 - Review 1 Year Later
John Athanasiou - . Prothane 4508
Great product to give new life to old motor mounts and fit great as long as motor mounts are not worn out to point on replacement. great price for product
5 out of 5 - Excellent
Alan Taylor - . Prothane 4508