X12 QSX12 Cummins Diesel Engine Excavator Loader Heavy Truck Engine

Excavator Loader Heavy Truck Engine X12 QSX12 Diesel Engine 

The Advantage and features of QSX12 engine:

The QSX12 engine uses a wide torque platform of 1200-1800rpm, which is suitable for continuous operation, mining, heavy engineering, and long-distance cargo transportation.

Using XPI high-pressure common rail technology and dual overhead camshafts, it is efficient and fuel-efficient. Double overhead camshafts (one driving high-pressure oil pump and one control valve) optimize valve timing and injection timing; XPI ultra-high pressure injection results in finer atomization and more complete combustion, with fuel consumption 8% -10% lower than mechanical pump models of the same displacement; Electronic control accurately matches load/altitude/temperature, balancing power and economy

Integrated cylinder braking, safe and efficient. Integrated cylinder compression braking with a braking force of up to 400 HP, eliminating the need for frequent braking during heavy downhill driving, improving safety and extending the service life of the braking system, suitable for mountainous and long downhill conditions.

Application of QSX12 engine: 

1. Heavy engineering machinery (main force)
Large excavators (40-60 ton class: XCMG XE490, XE600, PC450, PC500)
Large loaders (8-12 ton class: Lingong L989, Liugong CLG890, Cat 980)
Mining dump truck (40-60 ton class), crawler crane, rotary drilling rig, concrete pump truck (ultra-high pressure), compaction machinery

2. Heavy commercial vehicles
6 × 4/8 × 4 heavy-duty trucks (Dongfeng Tianlong, Foton Ouman, Shaanxi Automobile Delong): long-distance logistics, coal/gravel/building materials heavy-duty transportation, large transport vehicles
Special vehicles: concrete mixer truck, oil tanker truck, fire truck, obstacle clearing truck, truck mounted crane

3. Mining/oilfield equipment
Underground loader, open-pit drilling rig, crushing and screening equipment, mining air compressor, oilfield fracturing/cementing truck auxiliary equipment

4. Fixed power
High power diesel generator set (350-500 kW), backup/common power source

Specification of QSX12 complete diesel engine: 

Who We Are?

We are a professional supplier which is focus on diesel engine, engine parts, and construction machinery parts for various brands equipment,

Includes engine assembly, engine long block, cylinder head, cylinder block, piston, crankshaft, liner kit, excavator/loader/bulldozer chassis parts

etc.

We help customer to get a correct engine and spare parts with reliable quality and workable price. According to customer's needs, we can

supply both original and OEM copy quality products. All products are 100% tested before delivery.

As for the diesel engines, quality options are various, we can supply new engine, rebuilt/remanufactured engine, refurbished engine, etc. It

depends on customer's option.

For some of the big and expensive machinery spare parts, we also able to supply customer the original refurbished one or OEM copy quality.

How to get a quotation from us?

Please contact us and tell us what you need: 

If you need diesel engine, please tell us the engine model, it is better if you have old engine's nameplate or serial number, or the old engine's pictures from each side. If you don't have these information, please tell us the engine power requirement, the engine application, the torque requirement, etc, as detail as possible, we will try to help you select a suitable model. 

If you need engine parts or machinery parts, please tell us the engine brands/model or machinery brands/model with its part number. We will check according to it. Sometimes the machinery VIN code may also helps. 

Other engine models we supply:

4BT3.9, 6BT5.9, 6CT8.3, 6LTAA8.9, QSB3.9, QSB4.5, QSB5.9, QSB6.7, ISB6.7, QSC8.3, QSL8.9, QSZ13, QSM11, ISM11, NTA855, QSX15, ISX15, KTA19, QSK19, QSK23, QST30, QSK38, QSK45, KTA50, QSK60, etc.