OEM Cummins K19 KTA19 QSK19 Diesel Engine Alternator 3975140 3026259 | Tonkee®

OEM Cummins K19 KTA19 QSK19 Diesel Engine Alternator 3975140 3026259 | Tonkee®

Cummins K19 KTA19 QSK19 Diesel Engine Alternator 3975140 3026259 | Tonkee®
Durability: Cummins is known for manufacturing rugged and durable components. These alternators are built to withstand harsh operating conditions, including high temperatures, vibrations, and heavy loads.
Maintenance: Regular maintenance is essential for the longevity of alternators. Cummins provides guidelines and support for maintaining their alternators to ensure optimal performance.
Cummins K19 KTA19 QSK19 Diesel Engine, Alternator 3975140 3026259 | Tonkee®

The Cummins K19, KTA19, and QSK19 diesel engines are part of Cummins' high-performance lineup, designed to provide reliable power generation and propulsion for a wide range of equipment.


These engines are known for their exceptional power output, fuel efficiency, and robust construction.

The alternator with part numbers 3975140 and 3026259 is a critical component in the electrical system of these engines. It plays a vital role in generating electrical power for various applications, such as powering onboard electronics, charging batteries, and supplying electricity to external devices or systems.

Key Specifications:

Output Rating: The alternator is available in various output ratings to meet specific power requirements. It can produce a range of electrical power, typically measured in kilowatts (kW) or kilovolt-amperes (kVA), depending on the application's needs.

Voltage Output: The alternator provides a stable voltage output, usually in the range of 120V to 480V, depending on the configuration. This voltage is crucial for ensuring the proper functioning of connected equipment and devices.

Frequency: The alternator produces electrical power at a specific frequency, typically 50 or 60 Hertz (Hz), which is essential for compatibility with electrical systems and devices.

Efficiency: Cummins alternators are designed for high efficiency, minimizing energy losses and optimizing fuel consumption. This ensures cost-effectiveness and reduced environmental impact.

Protection Features: These alternators are equipped with various protective features, such as overcurrent and overvoltage protection, to safeguard against electrical faults and damage to connected equipment.

Cooling System: To maintain optimal operating temperatures, these alternators come with efficient cooling systems, which often include fans or other cooling mechanisms.


Voltage Regulation: Precise voltage regulation is a critical aspect of alternator performance. Cummins alternators are designed to provide stable voltage output, ensuring the reliability of connected electrical systems.

Mounting Options: These alternators are versatile and can be mounted in various positions to accommodate different installation requirements.

Durability: Cummins is known for manufacturing rugged and durable components. These alternators are built to withstand harsh operating conditions, including high temperatures, vibrations, and heavy loads.

Maintenance: Regular maintenance is essential for the longevity of alternators. Cummins provides guidelines and support for maintaining their alternators to ensure optimal performance.

Application Flexibility: These alternators can be used in a wide range of applications, including generator sets, construction equipment, marine vessels, and industrial machinery, making them highly versatile.

Compliance: Cummins alternators often meet or exceed industry standards and regulations for safety and emissions, ensuring they are environmentally friendly and safe to operate.
Alternator 3975140 3026259 | Tonkee® Cummins K19 KTA19 QSK19 Diesel Engine
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