Cummins oil cooler core 3960067 6754612110 3975818 Cummins 4BT 6BT 6CT 3.9L 4D engine oil cooler 24V China manufacturer factory price Product Item:001 Part Number 3960067 Machine Model 4BT 6BT 6CT 3.9L 4D Condition: Aftermarket New Type: Oil Cooler Core Cummins oil cooler core 3960067 6754612110 3975818 Cummins 4BT 6BT 6CT 39L 4D engine oil cooler 24V China manufacturer factory price Inquiry Send Email