Pump Drive Belt replaces Exmark OEM# 109-2584, 1092584SL, 1092584, A-1613271, 161-3271, 1-613271, 1613271, 61-3271, 613271. Specs: 59.6" length x 1/2" width x 0.377" thickness. Stens: 266-500. Refer to your owners manual to match by original belt part #.