Engine 470.9, 471.9, 473.9 in model 963, 964 with code M5U (Exhaust brake, standard system) Engine 934.9, 936.9 in model 967 with code M5U (Exhaust brake, standard system) Engine 936.9 in model 963, 964 with code M5U (Exhaust brake, standard system)si1415w0004a