Replace Part Numbers:0400101 Fits Models:Compatible with SP4012, 2300-4, 2400-4, 2500-5, 2600, (KOHLER 27HP ENGINE ONLY! 1.625" Top Width, 67.63" Nominal Outside Length.(Please allow 1-3mm difference due to manual measurement.).4 Banded V Belt [Material:Kevlar Cord.]Taking into account the feedback from our customers, we have made significant improvements to the materials used in this belt. This belt now utilizes the finest Aramid Cord and Kevlar Cord. This improved material provides superior strength and durability, ensuring a longer life for the belt you purchase. Fits Models:SP4012, 2300-4, 2400-4, 2500-5, 2600, (KOHLER 27HP ENGINE ONLY!