Revitalize your 1989 to 1990 5.9L Cummins engine with the Remanufactured Turbo, model 3526739-RP, for 1st Gen systems. This turbocharger from PROTURBO REMAN is covered by a 1-year manufacturer's warranty, ensuring enhanced engine performance. Cross-reference numbers include 100TBC544 and 11-B-7005.