High-performance B-type carbon brushes specifically engineered for the 12V starter motors used in JCB backhoe loaders and construction equipment. These brushes are manufactured using a heavy-duty copper-graphite composite to handle the high-current demands and heavy cranking torque required for industrial diesel engines. The B-type configuration ensures a secure, vibration-resistant fit, providing superior electrical conductivity and reliable ignition in rugged, high-dust construction environments.