6LTAA8.9 Electronic Diesel Engine for Heavy Trucks, Construction & Generator Sets
The 6LTAA8.9 is an electronically controlled 8.9L diesel engine from the L Series platform.
Widely used in heavy-duty trucks, construction machinery, generator sets, and special vehicles, it offers strong torque, reliable performance, and proven Euro II / Euro III compliance.
Technical Specifications
6LTAA8.9 Engine Models
| Model | Rated Power (kW@rpm) | Max Torque (N·m@rpm) |
|---|---|---|
| 6LTAA8.9-C178 | 133 @ 1850 | 840 @ 1200 |
| 6LTAA8.9-C220 | 164 @ 2000 | 950 @ 1300 |
| 6LTAA8.9-C260 | 194 @ 2200 | 1240 @ 1200 |
| 6LTAA8.9-C325 | 239 @ 2200 | 1350 @ 1400 |
| 6LTAA8.9-C360 | 264 @ 2200 | 1400 @ 1400 |
The 6LTAA8.9 diesel engine belongs to the Cummins L Series 8.9-liter platform, a close relative of the renowned M11 series, sharing the same bore design with a shorter stroke.
Featuring an inline 6-cylinder configuration, turbocharging, air-to-air aftercooling, and a fully electronic control system, the 6LTAA8.9 delivers excellent power density, strong low-speed torque, and stable performance under demanding operating conditions.
Thanks to its mature electronic fuel system and robust mechanical structure, this engine became one of the most popular Euro III heavy-duty engines in the global market.
Technical Features
-
Inline 6-Cylinder, Heavy-Duty Design
Wet cylinder liners and individual cylinder heads ensure durability and ease of maintenance. -
Turbocharged & Aftercooled (LTAA)
Optimized air management improves combustion efficiency and power output. -
Advanced Electronic Control System
Equipped with CELECT or ISC electronic systems for precise fuel delivery and improved fuel economy. -
Upgraded Fuel Injection Technology
Later versions adopt Cummins proprietary PT system upgrades or high-pressure common rail, depending on configuration.
Key Advantages
-
Wide Power Output Range
Typical rated power from 250 to 350 HP, with peak ratings up to around 400 HP. -
High Torque Performance
Maximum torque ranges from 1250 to 1550 N·m, ideal for heavy-load and long-haul applications. -
Excellent Reliability & Durability
Proven L Series platform widely recognized for long service life. -
Strong Fuel Economy
Efficient combustion and electronic control reduce operating costs. -
Mature Service Network
Large installed base ensures easy access to spare parts and technical support.
Core Applications
-
Heavy-Duty Trucks
Long-haul logistics trucks and engineering vehicles
(Dongfeng Tianlong, Foton Auman, JAC Geelyfa, etc.) -
Construction Machinery
Large cranes, concrete mixer trucks, mining dump trucks -
Power Generation
Prime or standby diesel generator sets -
Special Vehicles
Fire trucks, oilfield service equipment
Emission Compliance
The 6LTAA8.9 engine series mainly complies with Euro II / Euro III emission standards, making it one of the most widely used heavy-duty engines in the Euro III stage.
Technical Specifications
6LTAA8.9 Engine Models
| Model | Rated Power (kW@rpm) | Max Torque (N·m@rpm) |
|---|---|---|
| 6LTAA8.9-C178 | 133 @ 1850 | 840 @ 1200 |
| 6LTAA8.9-C220 | 164 @ 2000 | 950 @ 1300 |
| 6LTAA8.9-C260 | 194 @ 2200 | 1240 @ 1200 |
| 6LTAA8.9-C325 | 239 @ 2200 | 1350 @ 1400 |
| 6LTAA8.9-C360 | 264 @ 2200 | 1400 @ 1400 |
General Specifications
-
Engine Series: Cummins L Series
-
Engine Type: Inline 6-cylinder, 4-stroke
-
Displacement: 8.9 L (8,900 cc)
-
Bore × Stroke: 125 mm × 147 mm
-
Aspiration: Turbocharged & Air-to-Air Aftercooled
-
Fuel System: Electronic Control (CELECT / ISC)
-
Cooling System: Water-cooled
-
Emission Standard: Euro II / Euro III
-
Application: Truck, Construction, Generator, Special Vehicles
Different power ratings, emission options, and OEM configurations are available.
Contact us today for pricing, lead time, and technical support.
| Model |
6LTAA8.9 – C178 |
|---|---|
| Rated Power (kW@rpm) |
133@1850 |
| Max Torque (N·m@rpm) |
840@1200 |
| Series |
L Series |
Quality Assurance & Compliance
Warehouse Storage
Faq
A: Our company's core businesses cover the entire process of diesel engine development, assembly, modification, maintenance, and testing; the production and R&D of explosion-proof engines; the supply of Cummins spare parts, as well as overhaul and testing services, etc
A: Neutral package with strong cartons normally , or according to your requirements.
A: T/T, L/C, MoneyGram, PayPal, Cash etc
A: EXW, FOB, CFR, CIF，DDU，DDP.
A:The specific delivery time depends on the items and the quantity of your order. We will confirm it with your detailed order.
A:Yes, the warranty period is 6 months. Coverage includes core engine components. Wear-and-tear parts and failures caused by improper operation are excluded.
A: We offer professional engine customization services and can fully tailor the products to your specific requirements, with a variety of options available for pricing, specifications and configurations. The minimum order quantity (MOQ) for customized engines is 1 unit.
A:Yes, all engines undergo rigorous appearance inspections and comprehensive performance tests prior to delivery to ensure compliance with quality standards. We will also provide customers with detailed factory test videos and real-time shipping photos for full traceability.
A:Should you have any quality inquiries after receiving the goods, please contact our professional after-sales team in a timely manner and provide relevant photos and videos for verification. We will first provide efficient remote technical support to resolve your issues promptly.
For confirmed quality problems within the warranty period, we offer free repair, replacement of faulty parts or even full machine replacement services, with all associated logistics costs borne by our company.
For issues not attributable to our side, we still provide free technical guidance and supply matching spare parts; the cost of spare parts and related logistics shall be borne by the customer.
