Knotter Knife Arm Fits New Holland BC5050 BC5060 BC5070 BC5080 Square Balers
Compatible New Holland Small Square Balers. Standard series: 6, 60, 65, 66, 67, 68, 77, 78, 87, 99, 268, 269, 270, 271, 272, 273, 275, 276, 277, 278, 280, 281, 282, 283, 285, 286, 290, 310, 311, 315, 316, 320, 326, 420, 425, 426, 430, 500, 505, 515, 565, 568, 570, 575, 580. BC series: BC5050, BC5060, BC5070, BC5080. Super series: Super 66, Super 68, Super 69, Super 77, Super 78. Replaces OEM part numbers: 86977418, 603728, 603728RE, 709320, 179142, 179142RE, 225937. Note: This is a direct replacement twine knotter knife arm for small square balers. Exact OEM Specification Direct Fit. Manufactured to fully match New Holland OEM part 86977418 with precise mounting hole positions, shaft diameter and knife arm geometry. Drops directly into the factory knotter assembly with zero modifications, drilling or fabrication required. Hardened Wear-Resistant Steel Construction Fabricated from high-strength carbon steel with a precision ground 0.035″ thin straight cutting edge and reinforced 0.120″ thick guide edge. Delivers clean, consistent twine cuts and resists bending, chipping and abrasion through high-volume baling operations. Works With All Common Twine Types Optimized cutting geometry is compatible with both plastic poly twine and natural sisal twine. The reinforced guide arm properly positions and feeds twine to the cutting edge for reliable knot formation cycle after cycle. Bolt-On Easy Installation Complete pre-assembled knife arm includes mounting shaft and roller tip. Installs with standard hand tools using existing factory mounting points. No special tools, knotter re-timing or adjustment is needed for standard replacement.