INA Belt Kit OAP OEM Drive System Replacement - Sparex Part S.149162The Sparex S. 149162 INA Belt Kit OAP is a complete drive system solution designed to maintain consistent belt tension, reduce vibration, and extend the lifespan of your tractors auxiliary systems. It ensures stable and efficient operation of engine driven components such as alternators and pumps. This kit features precision engineered components for reliable performance, including an Overrunning Alternator Pulley (OAP) that prevents belt slip and