In the Refuse business we need nothing less that severe duty parts. This location had gone through countless EGR coolers that kept failing within the 1 year window from the OEM. We've switched to BulletProof coolers and have had zero issues. Not only do they cost less than OEM, they are a far superior design and quality. We no longer run any EGR coolers except BulletProof on our trucks. Please expand your line to the Mack, Cummins HD, and Detroit Diesel!