The Deutz D2.9 is a 2.9 L 4-cylinder natural engine rated at 2600 rpm, producing up to 36.4 kW. It powers generator sets from Generac, including the MTP4000S.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|
| Air filter | Replace with a new air filter | | — | 1000 hr | |
| Fuel filter | Replace with a new fuel filter | | — | 500 hr | |
| Oil filter | Replace with a new oil filter | | — | 100 hr | |
| Battery | Replace with a new battery | | — | 10000 hr | |
| Belt | Inspect and replace as necessary | | — | | |
| Coolant | Replace coolant as needed, or every two years | | — | | |
| Oil | SAE 15W-40 or equivalent | | — | 25 hr | |
| Spark plug | Replace spark plugs every 50 hours or as needed | | — | 50 hr | |
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 Deutz D2.9 family
13| Part # | Description | Category |
|---|
| 01264 | Safety symbol summary | other_service |
| 01521 | Unit Dimensions | other_service |
| 01537 | Control Panel | other_service |
| 3.02 | CONFIG | other_service |
| 49943A | Generac programmed controller part number | other_service |
| CP600 | Controller model name | other_service |
| 01238 | Component locations - left side (4 inch venturi-prime pump shown) | pump |
| 01239 | Component locations - right side (4 inch venturi-prime pump shown) | pump |
| 01479 | Component locations - left side (4 inch diaphragm vacuum pump shown) | pump |
| 01538 | Venturi-prime pump components - left side (4 inch shown) | pump |
| 01539 | Diaphragm vacuum pump components - left side (4 inch shown) | pump |
| 01626 | Left Side (4 Inch Pump Shown) | pump |
| 01627 | Right Side (4 Inch Pump Shown) | pump |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.