GESi replacement DOC for Cummins (5289745 / GESI-536)

This new aftermarket DOC is a direct replacement for the OEM unit. This filter is built by GESi under the DPFXFIT brand, and includes the required clamps and gaskets. DPFXFIT backs this product with a two year unlimited mileage warranty. This DOC is a direct replacement for 5289745NX, 5289745RX, 5289745 Can not be sold or shipped to California at this time.