The Department of Veterans Affairs (VA) Bonham Medical Center requires mechanical repair services for an MCI D4500 transit coach to address engine oil leaks and emissions system maintenance. The contractor must provide all labor, tools, and materials to reseal or replace the front cover, oil pan, and oil cross-over cover, as well as clean the Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC). Post-repair testing and documentation of results are required deliverables. The period of performance is standard heavy-vehicle repair timelines, with coordination needed with VA transportation staff. The location for performance is the VA Bonham Medical Center.