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Cummins 6B: different types of Connecting Rods and Rod Bearings

16-04-2021 8:55 By J.Gradolí
Cummins 6B Collection Online Shop

One issue which is confusing to our customers when they are placing an order for an engine repair, is the different types of connecting rods and rod bearings of the Cummins 6B series. While the connecting rod 4943979 has a 3969562 rod bearing and a 4893693 rod bearing, the connecting rod 3901569 has two 3969562 rod bearings. In the first one, the flanges of the rod bearing touch because they are on opposite sides, and in the second one, the flanges do not touch because they are placed on the same side of the rod bearing. Therefore, when making a repair, you should bear in mind the fact that you will need to order three times as many 3969562 rod bearings as the 4893693 ones.


Una de las cuestiones que más confunde a nuestros clientes a la hora de hacer un pedido para la reparación de un motor, es las diferencia entre bielas y casquillos de la serie Cummins 6B. Mientras que la biela 4943979 lleva un casquillo 3969562 y otro 4893693, la biela 3901569 lleva dos casquillos 3969562. En la primera, las pestañas del casquillo se tocan porque están en lados opuestos, y en la segunda, las pestañas no se tocan porque están colocadas en el mismo lado del casquillo. Por lo tanto, a la hora de hacer una reparación, debe tener en cuenta que deberá pedir el triple de casquillos 3969562 que de casquillos 4893693.

This is the result after having placed the Rods into the Connecting Rods:

Este es el resultado tras haber acoplado los casquillos a las bielas: 

connecting rod cummins 6b

We hope this advice helps you in your next Cummins 6B repair! If you have any other questions, please contact us through our email gradolimotors@gradoli.net or our whatsapp  phone number +34 961560000 or also in our online store.

Esperamos que este consejo sea de ayuda en tu próxima reparación Cummins 6B! Si tienes alguna duda, contacta con nosotros por favor a través de nuestro corregradolimotors@gradoli.net or our whatsapp  phone number +34 961560000 or also in our online store.

J.Gradolí

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