Cummins Full Series Cylinder Block Details
The Cummins engine cylinder block serves as the "skeleton" and core foundation of the power system. Engineered for medium and heavy-duty construction machinery, generator sets, marine propulsion, and mining equipment, the entire series is integrally cast from high-strength alloy iron. It delivers outstanding rigidity, vibration resistance, and durability, ensuring stable power output even under extreme operating conditions.
5.0
design customization
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Core Advantages
01
High-Strength Material & Structure
Made of high-tensile alloy cast iron to withstand high combustion pressure. Integrated design reduces sealing surfaces and failure rates.
02
Superior Maintainability
Features replaceable wet cylinder liners across the series for excellent heat dissipation and easy replacement, significantly reducing overhaul costs.
03
Integrated Lubrication
Built-in pressurized oil galleries eliminate excessive external pipelines, resulting in a compact structure and reduced risk of oil leakage.
04
High Compatibility
High parts interchangeability within K-Series and M/N-Series engines reduces inventory pressure for users.
05
Global Validation
Validated by decades of market operation and over one million operating hours, proven in high-dust and high-vibration environments.
Comparison of technical parameters across the entire series
| Parameter Item | NT855 Series | ISM11 Series | K19 Series | K38 Series | K50 Series | QSM11-C Series |
| Cylinder Arrangement | Inline 6 | Inline 6 | Inline 6 | V12 | V16 | Inline 6 |
| Displacement | 14 L | 10.8 L | 19 L | 38 L | 50 L | 10.8 L |
| Bore × Stroke | 140×155 mm | 125×147 mm | - | 159×159 mm | 159×159 mm | - |
| Rated Power | 210 kW | 250-331 kW | 369-669 kW | 560-1200 kW | 930-1500 kW | 213-309 kW |
| Max Torque | 2200 N·m | 1600-2080 N·m | 2586 N·m | 5469 N·m | 7865 N·m | 1674 N·m |
| Lubrication Mode | Integrated Pressurized | Forced Lubrication | Integrated Pressurized | Integrated Pressurized | Integrated Pressurized | Forced Lubrication |
| Typical Application | Bulldozers, Gensets | Heavy Trucks, Dump Trucks | Marine, Large Gensets | Mining Trucks, Offshore | Ultra-High Power Gensets | Excavators, Loaders |
Detailed Model Introduction
NT855 Series: The Power Legend
- Features: Known as a "legendary power unit," featuring an optimized inline 6-cylinder layout with strong low-speed torque.
- Applications: Widely used in Shantui SD22 bulldozers, mining dump trucks, and 200kW-300kW generator sets.
- Parts: Cylinder Block Assembly (4914795), Overhaul Kit (4914613).
ISM11 Series: Heavy-Duty Flagship
- Features: Incorporates North American technology with an average overhaul mileage exceeding 1 million km. Features a deep-skirt block structure and optional compression brake technology (250kW braking power).
- Applications: Tractor trucks (e.g., Shaanxi Automobile Delong, Auman), cement mixers, and oilfield equipment.
K19 Series: High-Load Backbone
- Features: Introduced to China in 1975, adapted for continuous heavy-duty operation. Supports air-to-air intercooling and meets CCS, ABS, and other classification society standards.
- Applications: 400kW-1500kW generator sets, tugboats, and large excavators.
- Parts: Cylinder Block Assembly (3088303).
K38 Series: V12 High Power
- Features: V12 configuration with high power density. Net weight approx. 4222 kg, designed to withstand high salt spray in offshore environments.
- Applications: 800kW-1500kW generator sets, offshore drilling rigs, and wind turbine installation vessels.
- Parts: Cylinder Block Assembly (3176478).
K50 Series:
Ultra-Heavy Duty Power
- Features: V16 configuration with max torque reaching 7865 N·m. Net weight approx. 4946 kg.
- Applications: 1000kW-2000kW generator sets and ultra-heavy mining machinery.
- Parts: Cylinder Block Assembly (3648602-10).
QSM11-C Series: Off-Highway Electronic Benchmark
- Features: The first engine certified to Tier 3/Stage IIIA standards. Equipped with CELECT™ electronic control system, offering 3x better fuel tolerance than common rail systems.
- Applications: Excavators, loaders, and rotary drilling rigs for OEMs like XCMG and Sany.
Service & Support
01
Quality Assurance
Genuine and high-quality aftermarket blocks available, all undergoing ultrasonic and pressure testing to ensure zero defects.
02
Delivery
Stock available in Chongqing and other locations; shipment within 3 days after payment.
03
Service Network
Backed by Cummins' global service network, providing installation guidance and fault diagnosis support.
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Get in touch with us
Just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs!
With 20 years of extensive experience in the sales and maintenance of Cummins engines and parts, we provide robust power solutions ranging from 175HP to 2500HP. Our core product lineup includes the NTA855, KTA19, KTA38, KTA50, QSK60, and M11 series.
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Contact person: ava
Tel: +86 199 2388 1696
E-mail: wancum@wancum.com
Address:No. 1-110, Dashuijing, Shapingba District, Chongqing, China
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