Detroit Diesel / MTU Air Inlet Housing with Butterfly Valve - Used

Used Detroit Diesel / MTU cast-aluminum air inlet housing with integral butterfly valve, actuating lever, and return spring. Casting number 536 090 05 with DDC-mtu foundry mark. Application: MTU / Detroit Diesel marine diesel (Series 2000/4000 family suspected) — not verified from photos. Condition: used, untested take-off with chipped paint and light surface corrosion; butterfly and shaft present. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.