Improved RPP Panther Design. Feature ULTRA-CORD tensile members and the Able compound. ULTRA-CORD does not stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components. ULTRA-CORD resists degradation and moisture to give you longer belt life. The Able compound, an advanced polymer, resists tooth shear, adding to the belts stability. The rugged parabolic tooth profile reduces noise and offers drive efficiency up to 98%. Made in the USA No warranty claims are made or implied. Replaces OEM #40015-90.