The B7072 is a short link south of Kilmarnock which follows the former, pre-bypass trace of the A734 along Hurlfield Road between Riccarton and Bellfield. The re-classification took place in 1973.
The route starts at the southern roundabout of the A71 / B7038GSJ and heads eastwards along the residential Hurlford Road. After going over the brow of a hill we gain service roads and so no further buildings line the B7072. It's not long before the road bears to the left to go under the A71 to end at a mini-roundabout on the A735 immediately afterwards. Bellfield Roundabout (A71 / A76 / A77 / A735) is just to the right.