6C8.3 & 6CT8.3 & 6CTA8.3 & 6CTAA8.3
The Cummins 6C8.3 engine series, including 6CT8.3, 6CTA8.3, and 6CTAA8.3, are powerful and reliable 8.3L in-line 6-cylinder diesel engines. Designed for applications in construction, agriculture, marine, and industrial power, these engines feature turbocharging, advanced fuel systems, and efficient cooling technology. Offering a balance of high performance, fuel efficiency, and durability, the 6C8.3 series meets various power demands while ensuring long service life and low operating costs.
Product Description
The Cummins 8.3L engine series—including the 6C8.3, 6CT8.3, 6CTA8.3, and 6CTAA8.3—has built a strong reputation worldwide for:
- Reliable daily operation
- Long service intervals
- Adaptability across industrial and marine environments
Each of these 6-cylinder, 8.3-liter diesel engines delivers stable torque and power output across a wide range of uses—from construction machinery to marine propulsion systems.
Pre-Sales Service
After-Sales Service
Transaction Information
Key Features
- 6-Cylinder, 8.3L Displacement：Perfect balance between torque, size, and serviceability.
- Mechanical & Electronic Options：Choose from fully mechanical (6C/6CT/6CTA) or electronic fuel systems (6CTAA).
- Turbocharged & Aftercooled (CTAA)：For improved power density and fuel efficiency.
- Global Parts Support：All models backed by Cummins’ worldwide logistics and our in-house parts experts.
- Flexible Mounting：Engineered for easy integration in a wide range of chassis and frames.
- Long Service Intervals：Designed for uptime, with simplified maintenance and rugged components.
Applications
This engine series is trusted globally across industries:
- Oil & Gas: Well service units, skid packages
- Construction Equipment: Excavators, loaders, graders
- Agriculture: Tractors, combines, irrigation pumps
- Marine Use: Auxiliary and propulsion systems
- Mining & Quarrying: Haul trucks, crushers, drills
- Industrial: Water pumps, compressors, generators
Specifications Summary
| Model | Output Range (HP) | Aspiration | Fuel System | Emission Tier |
| 6C8.3 | 185–240 HP | Naturally Aspirated / Turbo | Mechanical | Tier 0 / Tier 1 |
| 6CT8.3 | 215–260 HP | Turbocharged | Mechanical | Tier 1 |
| 6CTA8.3 | 240–280 HP | Turbo & Aftercooled | Mechanical | Tier 1 |
| 6CTAA8.3 | 250–325 HP | Turbo Aftercooled (ECM) | Electronic Control | Tier 2 / Euro II |
Need full tech specs or 2D/3D drawings? Contact us
8.3 diesel engine Model
| model | constantpower（kw/rpm) | Weight(kg) | Size(mm) | Maximum torque | |
| C（6cylinder /8.3L） | 6CTA8.3-C145 | 108/1900 | 733 | 1390*890*1450 | 672/1300 |
| 6CTA8.3-C195 | 145/1900 | 733 | 1390*890*1450 | 820/1500 | |
| 6CTA8.3-C205 | 151/1850 | 733 | 1390*890*1450 | 900/1400 | |
| 6CTA8.3-C212 | 158/2200 | 733 | 1390*890*1450 | 908/1500 | |
| 6CTA8.3-C215 | 160/2200 | 733 | 1390*890*1450 | 908/1500 | |
| 6CTA8.3-C230 | 170/1850 | 733 | 1390*890*1450 | 1000/1400 | |
| 6CTA8.3-C240 | 179/2200 | 733 | 1390*890*1450 | 1028/1500 | |
| 6CTA8.3-C260 | 194/2200 | 733 | 1390*890*1450 | 1135/1500 | |
| 6CTA8.3-C215 | 160/2200 | 733 | 1390*890*1450 | 908/1500 | |
| 6CTA8.3-C230 | 172/2200 | 733 | 1390*890*1450 | 1000/1500 | |
| 6CTA8.3-C260 | 194/2200 | 733 | 1390*890*1450 | 1135/1500 | |
| 6CTAA8.3-C195 | 143/1900 | 733 | 1390*890*1450 | 940/1500 | |
| 6CTAA8.3-C215 | 160/2200 | 733 | 1390*890*1450 | 980/1500 | |
| 6CTAA8.3-C240 | 179/2200 | 733 | 1390*890*1450 | 1040/1400 | |
| 6CTAA8.3-C260 | 194/2200 | 733 | 1390*890*1450 | 1100/1400 | |
| C (6cylinder/9.5L) | 6CT9.5-C220-Ⅱ | 160/2200 | 733 | 1390*890*1450 | 950/1400 |
| 6CTAA9.5-C360-Ⅱ | 264/2200 | 733 | 1390*890*1450 | 1480/1400 | |
| 6CTA8.3-P220 | 163@1500 | 673 | 1355*870*1400 | ||
| 6CTA8.3-P230 | 170@1800 | 673 | 1355*870*1400 | ||
| 6CTAA8.3-P250 | 173@1500 | 673 | 1355*870*1400 | ||
| 6CTAA8.3-P260 | 190@1800 | 673 | 1355*870*1400 | ||
| 6CTA8.3-M188 | 138/2200 | 733 | 1390*890*1450 | ||
| 6CTA8.3-M205 | 151/2200 | 733 | 1390*890*1450 | ||
| 6CTA8.3-M220 | 164/2200 | 733 | 1390*890*1450 | ||
| 6CT8.3-GM115 | 115/1500 | 733 | 1320×890×1270 | ||
| 6CT8.3-GM129 | 129/1800 | 733 | 1320×890×1270 | ||
| 6CTA8.3-GM175 | 175/1800 | 733 | 1320×890×1270 | ||
| 6CTAA8.3-G2 | 183/1500 | 673 | 1320×890×1270 |
Support & Services
We don’t just sell engines—we support your equipment lifecycle.
- On-Site Service: Our engineers travel globally to support installations and maintenance.
- Parts Matching: We ensure compatibility with your equipment, down to engine mount and sensor layout.
- Replacement & Retrofit Solutions: Need to replace a failed engine or modernize an old fleet? We help assess and install replacements.
- Remote Diagnosis: For CTAA models with ECM, we support remote fault code analysis and troubleshooting.
Our Commitment at JOZ
As an authorized Cummins engine distributor, JOZ supplies:
- 100% genuine Cummins engines and certified parts
- Expert technical support and system matching
- On-site and remote engineering assistance
We help you minimize downtime and keep your operations running efficiently—whether you’re managing a construction fleet, replacing legacy engines, or sourcing for OEM assembly.
Cummins 6CTA 8.3 Diamond Series
The Cummins Diamond Series 6CTA 8.3 engines come in multiple configurations, each offering different power levels and cooling methods:
- “T” in the model (e.g., 6CT8.3) indicates a turbocharged engine.
- “TA” (e.g., 6CTA8.3) means turbocharged with water-to-air intercooling.
- “TAA” (e.g., 6CTAA8.3) stands for turbocharged with air-to-air intercooling, offering better cooling efficiency and performance in demanding applications.
