The Power Solutions International D183L is a 18.27 L 10-cylinder turbocharged, charge air-cooled engine rated at 1800 rpm, producing up to 422 kW. It powers generator sets from Kohler, including the 300REZX, 300RZX, 350REZX and 350RZX. It holds 35 L (9.2 gal) of oil and 42 L (11.1 gal) of coolant.
Also known as: PSI Doosan D183L
| Oil capacity | 35.0 L |
|---|---|
| Coolant capacity | 42.0 L |
| Displacement | 18.273 L |
| Cylinders | 10 |
| Aspiration | Turbocharged, Charge Air-Cooled |
| Rated speed | 1800 rpm |
| Gross power | 422 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry | — | |||
| Fuel filter | N/A | — | |||
| Oil filter | — | 93 hr | |||
| Battery | Two, 925 CCA | — | |||
| Belt | N/A | — | 24 hr | ||
| Coolant | Water-Cooled | 42.0 L (qt.) | — | ||
| Oil | Full Pressure | 35.0 L (qt.) | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| engine oil filters | Check | 93 hr | last changed 12/18/2025 |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | 10 in. weld flange bolt circle diameter B | 361.95 | mm (14.25 in.) | |
| Other | 10 in. weld flange outside diameter C | 406.4 | mm (16.0 in.) | |
| Other | 10 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 12 in. weld flange bolt circle diameter B | 431.80 | mm (17.00 in.) | |
| Other | 12 in. weld flange outside diameter C | 482.6 | mm (19.0 in.) | |
| Other | 12 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 14 in. weld flange bolt circle diameter B | 476.25 | mm (18.75 in.) | |
| Other | 14 in. weld flange outside diameter C | 533.4 | mm (21.0 in.) | |
| Other | 14 in. weld flange quantity of bolts / bolt hole diameter D | 12, 28.58 | mm (1.13 in.) | |
| Other | 16 in. weld flange bolt circle diameter B | 539.75 | mm (21.25 in.) | |
| Other | 16 in. weld flange outside diameter C | 596.9 | mm (23.5 in.) | |
| Other | 16 in. weld flange quantity of bolts / bolt hole diameter D | 16, 28.58 | mm (1.13 in.) | |
| Other | 18 in. weld flange bolt circle diameter B | 577.85 | mm (22.75 in.) | |
| Other | 18 in. weld flange outside diameter C | 635.0 | mm (25.0 in.) | |
| Other | 18 in. weld flange quantity of bolts / bolt hole diameter D | 16, 31.75 | mm (1.25 in.) | |
| Other | 20 in. weld flange bolt circle diameter B | 635.00 | mm (25.00 in.) | |
| Other | 20 in. weld flange outside diameter C | 698.5 | mm (27.5 in.) | |
| Other | 20 in. weld flange quantity of bolts / bolt hole diameter D | 20, 31.75 | mm (1.25 in.) | |
| Other | 5 in. weld flange bolt circle diameter B | 215.90 | mm (8.50 in.) | |
| Other | 5 in. weld flange outside diameter C | 241.30 | mm (9.50 in.) | |
| Other | 5 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 6 in. weld flange bolt circle diameter B | 254.0 | mm (10.0 in.) | |
| Other | 6 in. weld flange outside diameter C | 279.4 | mm (11.0 in.) | |
| Other | 6 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 8 in. weld flange bolt circle diameter B | 298.45 | mm (11.75 in.) | |
| Other | 8 in. weld flange outside diameter C | 342.9 | mm (13.5 in.) | |
| Other | 8 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | Frequency regulation, no-load to full-load | Isochronous | ||
| Other | Frequency regulation, steady state | ±0.5 | % | |
| Other | Weld flange angle A (10, 12, 14 in. nominal pipe size) | 30 | deg. | |
| Other | Weld flange angle A (16, 18, 20 in. nominal pipe size) | 22.5 | deg. | |
| Other | Weld flange angle A (5, 6, 8 in. nominal pipe size) | 45 | deg. | |
| Pressure | Dual fuel engine, LPG vapor withdrawal fuel supply pressure | 1.24 | kPa | |
| Pressure | LPG vapor withdrawal fuel supply pressure | 1.24-2.74 | kPa | measured at the generator set fuel inlet |
| Pressure | Max. restriction of cooling air, intake and discharge side of radiator | 0.125 | kPa | |
| Pressure | Maximum allowable back pressure after catalyst | 5.1 | kPa | |
| Pressure | Maximum allowable back pressure overall | 10.2 | kPa | |
| Pressure | Natural gas fuel supply pressure | 1.74-2.74 | kPa | measured at the generator set fuel inlet downstream of any fuel system equipment accessories |
| Speed | Rated rpm | 1800 | rpm | |
| Temperature | Ambient temperature | 50 | C | weather and sound enclosures with internal silencer reduce ambient temperature capability by 5C (9F) |
| Temperature | Exhaust temperature at rated kW, dry exhaust | 600 | C | at rated kW |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Engine oil | Kohler Genuine oil | 42.1 L | Kohler recommends the use of Kohler Genuine oil and filters. | ||
| Fuel | LP Gas (Vapor) | Nominal fuel rating: LP vapor, 93 MJ/m3 (2500 Btu/ft.3); propane 85% min., lower heating value 84.2 MJ/m3 (2260 Btu/ft3) min. | |||
| Fuel | Natural Gas | Nominal fuel rating: Natural gas, 37 MJ/m3 (1000 Btu/ft.3); methane 90% min., lower heating value 33.2 MJ/m3 (890 Btu/ft3) min. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Tools: load bank
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 12, Reconnectable | 12 | Alternator 4M4019, 12 lead | ||
| 600 | 4, 600 V | 4 | Alternator 4M4266, 4 lead |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
The Power Solutions International D183L engine has an oil capacity of 35.0 liters.
The Power Solutions International D183L has a displacement of 18.273 liters with 10 cylinders.
The Power Solutions International D183L powers 4 generator set(s), including Kohler 300REZX, Kohler 300RZX, Kohler 350REZX, Kohler 350RZX.