The Caterpillar 3126B engine line groups 2 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 01768-AAA-000 | Air cleaner with dry type radial seal, service indicator, automatic dust ejector | Air filter |
| 06789-AAA-000 | Serpentine belt, automatic tensioner | Belt |
| 2100-5789 | Remote Grease Fitting | Belt |
| 03678-AAA-000 | Parking brake - multi-disc, sealed and oil cooled | Brake |
| 03459-AAA-000 | Demand fan | Fan |
| PG219CS | Gasket Set, Conversion Set | Gasket |
| 04567-AAA-000 | Pre-screener | Service part / kit |
| AEHQ5541-02 | 953C Track Loader | Service part / kit |
| LG230 | Home Maintenance Kit | Service part / kit |
| 05678-AAA-000 | Priming pump, fuel | Pump |
| 2100-4369 | Radiator | Radiator |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.