SPROCKET 7D6361 - Caterpillar

Table 1 contains the parts needed to update the fan drive to the three bolt design from the previous two bolt design. Table 3 contains the effective serial numbers for this change.Note: Some applications require replacement or modification of the fan adapter and others do not. Table 2 contains the adapter needed for each machine.Reference: Refer to Special Instruction, SEHS0119, "Field Installation Instructions for the 2-bolt to 3-bolt Fan Drive Upgrade on Certain 3500 Machines" for installation instructions.
Table 1
Item Qty Part Number Part Name
1 3 1B-4367 Bolts
2 1 1J-4034 Lip Type Seal
3 1 209-5296 Spacer
4 1 466-9948 Shaft
5 1 466-9950 Washer
6 1 471-1020 Adapter
7 1 4E-9311 Bolt
8 1 5F-3144 O-Ring Seal
9 3 5P-8247 Hard Washers
10 1 5P-8248 Hard Washer
11 2 6Y-7651 Bearing Cone
12 2 6Y-7652 Bearing Cup
13 1 7W-7590 Sleeve
Table 2
Machine Sales Model Serial Prefix Fan Drive Gp Number Adapter Number
784B 5RK 107-0784 7W-7281
784C 2PZ 354-5341 471-1020 or
Modified 327-7990
785 8GB 7W-7285 7W-7281
785B 6HK 107-0784 7W-7281
785C 1HW 107-0784 7W-7281
785C APX 312-1681 471-1020 or
Modified 327-7990
785D DMC, MSY 172-0220 471-1020 or
Modified 327-7990
789 9ZC 7W-7285 7W-7281
789B 7EK 107-0784 7W-7281
789C 2BW 107-8707 7E-6854
789D SPD 356-2158 471-1020 or
Modified 327-7990
793 3SJ 9Y-8897 7E-6854
793B 1HL 107-8707 7E-6854
793C 4AR, 4GZ 353-7520 7E-6854
793C ATY 178-6384 471-1020 or
Modified 327-7990
994F 442 102-9792 7E-6854
994H DWC 102-9792 7E-6854
Table 3
Effective Serial Numbers
S/N:5RK00026-UP
S/N:2PZ00107-UP
S/N:8GB00863-UP
S/N:6HK00988-UP
S/N:1HW00135-UP
S/N:APX02392-UP
S/N:MSY00669-UP
S/N:DMC00177-UP
S/N:9ZC00678-UP
S/N:7EK00689-UP
S/N:2BW02129-UP
S/N:SPD00704-UP
S/N:3SJ00799-UP
S/N:1HL00525-UP
S/N:4AR00425-UP
S/N:4GZ00265-UP
S/N:ATY01125-UP
S/N:44200341-UP
S/N:DWC00528-UP