The Caterpillar 3126B DITA ATAAC VHP is a 7.2 L 6-cylinder engine rated at 2000 rpm, producing up to 115 kW. It powers generator sets from Caterpillar, including the 135. It holds 29.5 L (7.8 gal) of oil and 40 L (10.6 gal) of coolant.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|
| Air filter | Air cleaner with dry type radial seal, service indicator, automatic dust ejector | | 01768-AAA-000 | | Amazon eBay |
| Belt | Serpentine belt, automatic tensioner | | 06789-AAA-000 | | Amazon eBay |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Parts cataloged across the Caterpillar 3126B family
11| 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 | other_service |
| AEHQ5541-02 | 953C Track Loader | other_service |
| LG230 | Home Maintenance Kit | other_service |
| 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.