33 lbs. Oil and Heat resistant Belt Type-V Belt Top Width-1/2 in Material-Kevlar (Aramid) Outside Length-54 in Height-5/16 in Weight: 0.Aftermarket CRAFTSMAN 037X57MA Replacement Belt, 4LK540 The outer fabric wrap is treated with highly oil and heat resistant, engineered synthetic rubber compound, specifically compounded for excellent wear resistance, proven through thousands of hours of testing..