Mack E7, Exhaust Manifolds, (GOOD USED) Mack E7 Exhaust Manifold 3-Part For Sale, OEM End Part Casting # 104GC5203AM, 104GC5203M, Center OEM Part Casting # 104GC5215AM, W/O EGR Valve, MACK TRUCK E7 ENGINE W/O EGR E-7, SET HAS REF# 104GC5215AM CENTER MANIFOLD QTY1, REF# 104GC5203AM, 104GC5203M ENDS QTY2, Sold As A Set, Stock # 7247 | Tested & Inspected!