BOLT-HEX 4722835 - Caterpillar

225, And 235 Excavators;
235 Front Shovels;
12G, 14G, 120G, 130G, And 140G Motor Graders;
518 And 528 Skidders;
920, 930, 941, 950, 951B, 955L, 977K, And 977L Loaders;
D4E, D5B, D6D, 627B, And 627B PP Tractors;
561D Pipelayers;
3306 Natural Gas Engines;
3304, 3306, D333C, And D330C Industrial And Marine Engines;
1673C And 3306 Truck EnginesDescription of Change: The crankshaft rear seal and wear sleeve, used in the above models, are now serviced as a group. As a group, the 9S3111 Seal comes installed on the 2P3858 Sleeve from the factory. Lubricant is put on the seal during assembly. Also, the group is sealed in plastic for shipment. This will keep the contact surfaces clean and prevent damage to the seal during shipment.
Formerly, the crankshaft rear seal and wear sleeve were serviced as separate parts and had to be assembled at the time of installation. It was some times possible to damage the seal when it was installed on the wear sleeve. Also, it was possible for the separate parts to be damaged during shipment.
Adaptable As: The new 1N3216 Crankshaft Rear Seal Group is a direct replacement for the 9S3111 Seal and 2P3858 Sleeve. See Special Instruction Form No. SMHS7100 for installation procedure. DO NOT disassemble the group before installation. This will prevent possible damage to the seal.