NP261 Oil Pump Assembly

A part that is commonly replaced in the New Process Gear 261 and 263 is the pump assembly.

When rebuilding this transfer case you should pay close attention to this part as it might cause small pin holes in the case where the pump sits and leak fluid very slowly. The flow of the leak tends to be so slow that once you find out about the leak you might need to replace quit a few parts or need a whole unit.

Here are pictures of the NP-261 pump (front and back side).

Click on the picture for larger view.

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