Shop OEM BMW Part # 51137497231 (51-13-7-497-231). Air. Duct. (Lower). W/O M, M COMPETITION, lower. X3; Lower. X3; M40i; Lower. XDRIVE30I, M40I, lower. COOLING SYSTEM. COOLING FAN. RADIATOR

An assembly used to block Air flow from entering to vehicle's radiator, to maintain optimal engine temperatures. Routes Air through the radiator support. Active Grille Shutter. Center. Flaps,. Frame. Guide. Inlet Grille. Outer. Radiator Support. Side cover.

Radiator Support Air DeflectorRadiator Support Air Duct

Fits X3, X4

W/O M, M COMPETITION, lower. X3; Lower. X3; M40i; Lower. XDRIVE30I, M40I, lower.