- About This Product
- Install And Tech Information
DescriptionThis is a direct replacement heavy-duty vacuum pump diaphragm for the '03-'07, 5.9L Dodge Cummins Jacobs brake system.
The heavy duty diaphragm is similar to the factory original but has a slightly larger and more robust diaphragm that has a decreased stroke which equals less work for the internal components. To help cut down on pump noise during operation the heavy duty diaphragm has a larger noise suppressor.
1-year manufacturer warranty.
ReviewsWrite a review
Jun 4, 2017 | By Olukoya Olusanya
Vacuum pump is much quieter than original, I have many more items that I would like to purchase however the postage is cost prohibitive.
Exhaust Brake Diaphragm Replacement
Dec 11, 2016 | By Rich Stephan
Change out was easy. Video was accurate. I definitely saved some money..Works Great..Highly recommend your products.
Install and Tech Information
Download Jacob Exhaust Brake Installation Instructions.pdf