Genuine New Sinotruk T12.42-40 420HP LNG CNG Natural Gas Engine Assembly Euro IV

Product Description

Product Description

DIESEL ENGINE ASSEMBLYY

Engineered to rigorous manufacturing standards, our diesel engines deliver reliable power and efficient fuel consumption for maximum vehicle uptime. Designed for heavy-duty commercial vehicles, construction machinery, agricultural equipment, marine vessels and industrial equipment, our complete range ensures consistent operation and exceptional durability.

PRODUCT SERIES — Complete Engine Assemblies

Suitable for medium trucks, city buses, heavy-haul trucks, heavy-duty mining haulers, tankers, farm machinery, fishing & work vessels and high-power industrial equipment applications.

PRODUCT SERIES — Mainstream Heavy-Duty Engine Platforms

9.7L Diesel (178-375HP) — dump trucks, bulldozers, 5T wheel loaders, graders, large farm tractors.
11.6L Diesel/LNG (336-420HP) — tractor trucks, logistics vehicles, large bulldozers, agricultural harvesters, marine propulsion systems.
6.9L / 10.5L Diesel (340-440HP) / 12.4L LNG — logistics trucks, special-purpose vehicles, farm field equipment, auxiliary marine power units.
8.6L / 11.1L Diesel — long-haul tractor trucks, buses/coaches.

Parts coverage: cylinder block, cylinder head, high-pressure fuel injection pump, fuel injectors, turbocharger, water pump, oil pump, flywheel housing, cooling assemblies, intake & exhaust manifolds, sensor sets. OEM-spec replacement parts for aftermarket distribution.

PRODUCT FAMILIES
Highway & Logistics Series: for long-haul tractors and regional trucks with proven fleet fuel efficiency
Construction & Mining Series: for dump trucks, wheel loaders, bulldozers, and excavators with reinforced components
Agricultural Series: for tractors, combine harvesters and field working machinery under dusty heavy-load conditions
Marine & Power Generation Series: for continuous-duty vessels, fishing boats, work boats and stationary generators
Natural Gas Series for LNG/CNG fleets
Bare Engine Blocks available for rebuild and assembly

QUALITY & SUPPLY

Strict level-final control, stable batch consistency, and practical aftermarket support. Available for complete engine supply, custom specification builds, and long-term cooperation for distributors and international buyers.

CORE FUNCTIONAL FEATURES

Efficient Combustion & Fuel Economy
Precision-calibrated high-pressure common rail and mechanical pump injection systems with matched piston-cylinder kits deliver complete fuel atomization and efficient burn across all load conditions. Lower fuel consumption, reduced smoke, and stable idle-maximizing kilometers per liter for fleet operators.

Torque & Power Across Full RPM Range
Turbocharged and aftercooled intake systems with precisely matched turbocharger-to-engine mapping ensure strong low-end torque for heavy starts and sustained high-speed power for highway cruising. Flat torque curves deliver responsive acceleration, grade-climbing capability, and consistent performance whether hauling 80-ton mining loads or powering 500 kW generator sets.

Heavy-Duty Thermal Management
High-flow water pump, optimized coolant passages, and large-capacity radiator integration maintain stable operating temperatures under continuous full-load conditions. Oil cooler and piston cooling jet systems prevent thermal breakdown, protect bearing surfaces, and extend oil change intervals-critical for mining trucks, marine vessels, and stationary generators running 24/7 duty.

Emission Compliance Ready
Configurable fuel injection timing, EGR systems, and SCR-ready exhaust architecture support Euro 2 through Euro 5 emission standards. Built to original calibration data with verified injection timing, compression ratios, and sensor compatibility-ready for registration and operation in regulated markets across Asia, Africa, Middle East, and South America.

Extensive Platform Coverage
Covers multiple mainstream heavy-duty diesel engine platforms. From 6.75L 125HP to 12.54L 550HP, bare blocks to complete assemblies, our catalog spans a broad range of verified products with white-background photography and strict quality screening.

Specification

TECHNICAL PARAMETERS
Product Name	PREMIUM DIESEL ENGINE & COMPONENTS
Keywords	Engine Assembly Diesel Engine Diesel Engine Assembly Heavy Duty Diesel Engine Truck Engine Assembly Construction Machinery Engine Diesel MotorMarine Diesel Engine Agricultural Diesel Engine Industrial Diesel Engine
Apply To	Truck / Excavator / Bulldozer / Wheel Loader / Generator / Marine / Mining Machinery / Agricultural Machinery
Video Support	Yes — Dynamometer Run Video, Walk-around Video, Loading Video
Material	High-Grade Alloy Cast Iron Block, Forged Steel Crankshaft, OEM-Spec Components
Cooling Type	Liquid-cooled (Water-cooled Radiator)
Engine Type	Diesel Engine,
Fuel System	Common Rail Direct Injection / Mechanical Pump Injection
Cylinder Arrangement	Inline-6 / Inline-4
Emission Standard	Euro 2 / Euro 3 / Euro 4 / Euro 5 (Model Dependent)
Horsepower Range	125—550 HP
Displacement Range	6.75L—12.54L
Torque Range	500—2,550 Nm
Warranty	12 Months
OEM & ODM Custom	Yes (Custom Paint Color, Brand Plate, Packaging Available)
Sample	Available

CORE APPLICATIONS & INDUSTRIES

Heavy-Duty Commercial Vehicles

Our diesel engines deliver reliable power and improved fuel efficiency for long-haul tractors, regional delivery trucks, dump trucks, buses, and specialized vocational vehicles. Direct-fit replacements for mainstream heavy-duty vehicle platforms. Consistent torque delivery and reduced emissions-backed by millions of operational kilometers across global fleet applications.

Construction & Mining Machinery

Engineered for high-vibration, extreme dust, and temperature-heavy environments, our engines provide uncompromising reliability for excavators, bulldozers, wheel loaders, graders, articulated dump trucks, and off-highway mining equipment. Mining-spec variants built for continuous heavy-load operation where downtime directly impacts your bottom line. Robust construction withstands shock loads, inclines, and 24/7 duty cycles.

Agricultural Equipment

Dependable engine performance for modern high-horsepower tractors, combine harvesters, sprayers, and irrigation pumps. Suitable for heavy-duty field working machinery. Designed to operate reliably in dusty field conditions while delivering precise power output and fuel efficiency for cost-effective farming across seasonal peak operations.

Industrial Power Generation & Marine

Mission-critical diesel engines for stationary diesel generator sets (emergency or prime power), marine propulsion, and auxiliary systems. Dedicated marine-spec units for commercial vessels and fishing boats. Natural gas variants available for LNG/CNG applications. Reliable power output and stable operation under continuous duty-where failure is not an option.

FAQ

Q1: Can I get a sample?
A: Of course! It's our pleasure to provide you with the samples; you just need to pay the sample fee and the express cost.

Q2: Order processing time?
A: We are a factory and have the stock in our warehouse. So we can arrange the packing and shipping after receiving the order payment as soon as possible.

Q3: What are your terms of packing?
A: For the original,  the package is the original box. For after-market parts. Generally, 
we pack our goods in neutral white boxes and brown cartons. If you have a legally registered patent, we can pack the goods in your branded boxes.
 
Q4: How can we guarantee quality?
A: Always a pre-production sample before mass production; Always final Inspection before shipment.