The piston pin, also known as the wrist pin, is a cylindrical metal rod that connects the piston to the connecting rod.
It allows the piston to move up and down within the engine cylinder while maintaining a secure connection to the connecting rod. The specifications of the piston pin are essential to ensure proper engine function and longevity.
Cummins Engine Models:
4BT and 6BT:
Piston Pin Material: High-strength alloy steel.
Diameter: Typically around 1.25 inches (31.75 mm).
Length: Varies depending on engine design and application.
Features: Heat-treated for durability and precision-machined to ensure a perfect fit within the piston and connecting rod.
6CT:
Piston Pin Material: Similar to 4BT and 6BT, high-strength alloy steel.
Diameter: Generally around 1.5 inches (38.1 mm).
Length: Customized for specific engine configurations.
Features: Heat-treated, precision-machined, and designed to withstand high levels of stress and heat in heavy-duty applications.
NTA855:
Piston Pin Material: Robust alloy steel.
Diameter: Typically around 1.75 inches (44.45 mm).
Length: Engine-specific.
Features: Engineered to handle the demands of industrial and marine applications, ensuring durability and reliability.
QSK19, QSK38, QSK50, and QSM11:
Piston Pin Material: Advanced alloy steel with exceptional strength and heat resistance properties.
Diameter: Ranges from approximately 2 inches (50.8 mm) for smaller models to over 2.5 inches (63.5 mm) for larger ones.
Length: Engine-dependent.
Features: These high-performance engines demand piston pins with superior materials and design to withstand extreme operating conditions, including high power output and extended service intervals.
Tonkee® Piston Pins:
Tonkee® is a well-known manufacturer of engine components, including piston pins, that meet or exceed OEM specifications. Tonkee® piston pins for Cummins engines are precision-engineered to provide a perfect fit, ensuring optimal engine performance, longevity, and reduced maintenance costs. These piston pins are made from high-quality materials and undergo rigorous quality control measures to guarantee reliability.
