0 PACCAR MX13, , Exhaust Manifolds, Fits to: , (Used) 2011 PACCAR MX13, EXHAUST MANIFOLD- Part Number: 1863540, 1863539, 1863538, Position: Complete, Engine Information- Family Number: BPCRH12.9M01, Serial Number: Y008542, Reference images for condition, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Serial# Y008542, Casting# Y008542, Part# 1863540