Cheap And Discounts CHENHO BRAND New OEM Differential Oil Temperature Sensor 505-5401 for Peterbilt 379 Kenworth Q21-1002 Wholesale. Buy Directly From Merchant Ruian Chenho Auto Electronic Co., Ltd.. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.