Iron-Based Friction Plate for Caterpillar 4B1969 - 371.1 x 139.7 x 12.7 mm OT57

Replacement iron-based friction plate for Caterpillar part number 4B1969. External spline with 57 teeth (OT57). Size 371.1 mm OD x 139.7 mm ID x 12.7 mm thick. Aftermarket replacement by Nantong Yida, not an OEM part. Fits construction machinery transmissions, wet clutch packs and brake assemblies. Iron-based sintered friction facing on a steel core for high-torque duty. Custom OD, ID, thickness and material by drawing or sample. Copper-based, iron-based and paper-based plates also available.