Product Description
Cummins KTA38-G1 is a high-capacity 37.8-liter V12 diesel engine built specifically for industrial and commercial generator sets. Unlike smaller or heavy-duty mining engines, the KTA38-G1 is engineered to deliver stable, continuous power with excellent fuel efficiency. Its robust construction and advanced Cummins PT fuel system ensure reliable electricity generation under long-duration operation, making it ideal for factories, data centers, large buildings, and offshore or remote power systems.
Cummins KTA38-G1 Engine Technical Specification Sheet
| Parameter | Specification |
| Engine Model | KTA38-G1 |
| Cylinders / Configuration | 12-cylinder V, 4-stroke diesel |
| Displacement (L) | 37.8 L |
| Bore × Stroke (mm) | 159 × 159 |
| Air Intake Method | Turbocharged and Aftercooled |
| Compression Ratio | 13.9:1 |
| Rated Speed (rpm) | 1500 rpm (50 Hz) or 1800 rpm (60 Hz) |
| Prime Power | 895 kW @1500 rpm (≈1200 HP) |
| Standby Power | 990 kW @1500 rpm (≈1320 HP) |
| Max. Torque (N·m) | 5700 N·m @1500 rpm |
| Fuel System | Cummins PT Fuel System |
| Cooling System | Water cooled; engine block coolant 55 L; with radiator 200 L |
| Lube Oil Capacity (L) | Oil pan standard capacity 135 L |
| Net Weight (kg) | 3700–3900 kg (without radiator) |
| Dimensions L×W×H (mm) | 3300 × 1700 × 2100 (engine only) |
| Starting System | 24 VDC electric starter |
| Emission Standard | Non-road Tier 0 / Stage 0 |
Cummins KTA38-G Series Engine Core Parameters Comparison
| Parameters | KTA38-G1 | KTA38-G2 | KTA38-G4 | KTA38-G5 | KTA38-G9 |
| Cylinders / Configuration | 12-cylinder V | 12-cylinder V | 12-cylinder V | 12-cylinder V | 12-cylinder V |
| Displacement (L) | 37.8 | 37.8 | 37.8 | 37.8 | 37.8 |
| Bore × Stroke (mm) | 159 × 159 | 159 × 159 | 159 × 159 | 159 × 159 | 159 × 159 |
| Air Intake Method | Turbocharged & Aftercooled | Turbocharged & Aftercooled | Turbocharged & Aftercooled | Turbocharged & Aftercooled | Turbocharged & Aftercooled |
| Compression Ratio | 13.9:1 | 13.9:1 | 13.9:1 | 13.9:1 | 13.9:1 |
| Rated Speed (rpm) | 1500 / 1800 | 1500 / 1800 | 1500 / 1800 | 1500 / 1800 | 1500 / 1800 |
| Prime Power (kW) | 895 | 910 | 1000 | 1040 | 1100 |
| Standby Power (kW) | 990 | 1000 | 1100 | 1140 | 1200 |
| Fuel System | Cummins PT fuel system | Cummins PT fuel system | Cummins PT fuel system | Cummins PT fuel system | Cummins PT fuel system |
| Cooling System | Water cooled | Water cooled | Water cooled | Water cooled | Water cooled |
| Lube Oil Capacity (L) | 135 | 135 | 150 | 150 | 150 |
| Net Weight (kg) | 3700–3900 | 3700–3900 | 3800–4000 | 3800–4000 | 3800–4000 |
| Dimensions L×W×H (mm) | 3300×1700×2100 | 3300×1700×2100 | 3350×1700×2150 | 3350×1700×2150 | 3350×1700×2150 |
Features & Benefits
- Optimized Power for Generator Sets – 895 kW prime power and 990 kW standby power, with 5700 N·m torque, ensuring consistent electricity output.
- V12 Robust Design – 12-cylinder V configuration balances compact layout with high output, ideal for medium to large generator sets.
- Flexible and Reliable Start System – 24 VDC electric starter suitable for standby or continuous operation.
- Advanced Cooling & Lubrication – Engine block 55 L + radiator 200 L coolant, 135 L lube oil, keeping the engine stable under long runtime and high load.
- Global Cummins Support – Genuine parts and worldwide service network for long-term reliability.
Typical Applications
- Industrial generator sets for factories, plants, and commercial complexes
- Standby power systems for hospitals, data centers, and critical infrastructure
- Marine generator sets requiring continuous, reliable operation
- Remote or off-grid power generation systems
- Any application requiring high-capacity, continuous, and stable electricity supply
