Lada Samara Piston Pin Red Third Class 21,978*15,10*60,90

To ensure the required clearance, piston pins are divided into three classes by outside diameter. The difference in size is - 0.004 mm.
The class is marked with paint on the end of the pin:

blue - first class 21.970
green - second 21.974
red - third class 21.978
Size of the exact pin:
red - third class 21,978*15,10*60,90