Pulley for lawnmower mower RIDER 125-573 1985 125-574 1985 135-528 1985 135-529 1985 136-528 1986 135-529 1986 137-528 1987 137-529 1987 Ø external 177mm bore Ø 15.9mm h. 24.6mm throat 14.7mm max MTD - YARDMAN - NOMA - WOLFGARTEN Code: 021620 Original part no.: 756-0143 AT