Delphi, Isuzu, Cummins, Bosch fuel pumps: comparison, advantages, facts

The fuel pump is the heart of a diesel engine, its task is to ensure the supply of fuel under pressure, which is necessary for efficient combustion.

Cummins, Delphi, Isuzu and Bosch are the four titans in the world of diesel fuel equipment. Each of them has its own characteristics, reputation, developments and philosophy.

Let's look at each of them in more detail:

Isuzu - Japanese stable quality, time-tested.

Isuzu is not only a manufacturer of trucks and engines, but also develops its own fuel systems adapted to work under heavy loads.

Features:

1. Our own series of high-pressure fuel pumps, often installed in engines:
   • Isuzu 4JJ1,
   • Isuzu 4NK1,
   • Isuzu 6HK1,
   • Isuzu 6WG1
   • Isuzu 6UZ1,
   • Isuzu 6WF1
2. Have protection against overheating and overload
3. Reliable in operation, even when using low-quality diesel fuel
4. One of the highest quality manufacturers of diesel fuel equipment

Facts: some of Isuzu's fuel pumps are equipped with a two-level lubrication system, which extends the fuel pump's life when operating in extreme conditions

Delphi - British precision, designed in the USA

Delphi - one of the world leaders in the development of Common Rail fuel systems, Delphi DP200, Delphi DP210 and Delphi DP310 fuel pumps, as well as components for diesel fuel equipment. It is distinguished by its high fuel supply accuracy and wear resistance.

Features:

1. Have a wide range of compact high-pressure fuel pumps
2. Allows for multiple fuel injections per cycle, which improves combustion and is more environmentally friendly
3. Used in modern JCB, Volvo, Renault, Hyundai, Perkins, Massey Ferguson, Doosan, Terex and others
4. Capable of delivering fuel at pressures up to 2000+ bar
5. Fuel control depends on engine speed
6. Delphi fuel pumps have high maintainability: repair kits for fuel pumps, Delphi fuel pump plungers and other components are available.

Facts: Delphi was one of the first to introduce electronic fuel management in diesel systems for mid-range cars.

Cummins - uncompromising power

Cummins is an American giant known worldwide for its diesel engines for heavy equipment, agriculture, and mining.

Cummins fuel pumps are total power, designed for long-term operation under serious loads.

Features:

1. Compatible with many models of tractors, excavators, generators.
2. The resistance to contamination of Cummins pumps is ideal for road or quarry special equipment
3. Many models have improved filtration and safety valves that reduce the risk of wear on plungers and fuel injectors.
4. PT (Pressure-Time) is a proprietary Cummins technology that allows for the most accurate fuel metering depending on engine speed.
5. Some of the most popular Cummins engine series are:
   • Cummins 4BT,
   • Cummins 6BT,
   • Cummins QSB,
   • Cummins QSX,
   • Cummins ISX

Facts: Some Cummins pumps have built-in pressure sensors that transmit information to the electronic control unit in real time.

Bosch - German quality and precision engineering No. 1 in the world

Bosch is the inventor of the Common Rail system and has also set global quality standards.

Features:

1. Bosch has one of the widest ranges of fuel pumps - from Bosch PE, Bosch VE, Bosch CP3 to the modern Bosch CP4 Common Rail.
2. Widely used Used in Mercedes, MAN, Volvo, Scania, Komatsu, John Deere, CAT, Deutz and other machinery and cars
3. Pump components are made of high-strength steel, with precision grinding
4. Many Bosch fuel pump models have interchangeable components - valves, gaskets, sensors, actuators

Facts: Bosch tests each pump at the factory at 100% load before shipment

Let's compare these four giants in the diesel fuel equipment market

To summarize: each of these fuel pump manufacturers: Delphi, Isuzu, Cummins and Bosch - has its own strengths and undeniable advantages.

Which fuel pump to choose depends on the type of your equipment and the operating conditions of the machines.

If you need professional advice or selection of a fuel pump or spare parts for it - contact Aspect Plus

We will select spare parts for any special equipment.