The LANR277873S is the category 4 bushing that is included in the complete Category 5 to Category 4 conversion kit (LANRE278847), and used in conjunction with the drawbar pin (LANRE277559S). This bushing is also used in the Category 5 to Category 4 conversion kit for Power Pin Drawbars, (LAN47477445).
{"shipping_group":"Shipping Group|ESTIMATED_SMALL_SIZE^LANKOTA_DROP_SHIP_SURCHARGE","sku":"SKU|LANR277873S","part_cdk_id":"Part ID|16191874","part_cdk_company":"Company|01","part_cdk_division":"Division|01","part_cdk_list_price":"List Price|175.5","part_cdk_branch_code":"Branch Code|99","part_cdk_branch_name":"Branch Name|Fargo FSO","part_cdk_description":"CDK Description|CATEGORY 5 TO 4","part_cdk_part_number":"Part Number|LANR277873S","part_cdk_part_status":"Part Status|A","part_cdk_vendor_code":"Vendor Code|205551","part_cdk_vendor_name":"Vendor Name|LANKOTA INC","part_cdk_product_line":"Product Line|AGXXXX","spec_notab_31_width":"Width|5 Inch","spec_notab_21_length":"Length|9 Inch","spec_notab_41_height":"Height|5 Inch","spec_notab_51_weight":"Weight|5 Pound"}