FILM-IDENTIFICATION 2050810 - Caterpillar

Illustration 1. Service parts needed to change retention of the lip-seal, from bolts and washers, to snap ring retention. View A: Snap ring retention. (1) Cylinder head. (2) Snap ring. View B: Bolt and washer retention. (1) Cylinder head. (C) Bolt. (D) Washer. For cylinder groups not using a new head, with the snap ring groove, the revised cylinder head is used.
Illustration 2. Service parts needed to change retention of the lip-seal, from bearing mount sealant, to snap ring retention. View E: Snap ring retention. (1) Revised 9T-3508 Cylinder Head [Engineering Change 03]. (2) 9T-2584 Ring-Retaining [snap ring]. (3) New 8T-3329 Wear Ring. View F: Bearing sealant retention. (1) Former 9T-3508 Cylinder Head. (3) Former 8T-6746 Wear Ring. (G) Bearing mount sealant. The revised cylinder head has the snap ring groove and narrower wear ring groove.
Illustration 3. Service parts needed to change retention of the lip-seal, from bearing mount sealant, to snap ring retention. View H: Snap ring retention. (1) Revised 9T-9258 Cylinder Head [engineering change 01]. (2) 8J-0484 Ring-Retaining [snap ring]. View K: Bearing sealant retention. (1) Existing 9T-9258 Cylinder Head. (G) Bearing mount sealant. Note: The revised cylinder head has the snap ring groove.