(Used) 2012 Allison, TCM FUSES MODULATOR- Model: 2200HS Serial Number: 631241077 Part Number: 29509886 12 Volt, 6 Relay 2 Plugs Rectangular, Pin Plug: 30(1) / 18(2), For more information about this item, give us a call. We ship worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921