Center Tap Thread Size: 1/8”BSPT Outlet Female. OE/OEM Part Numberuniversal 1/8” BSPT tee. Other Part Number1/8" BSPT. Inlet Thread Size: 1/8” NPT Male. Outlet Thread Size: 1/8” NPT Female. Works with most Honda, Subaru, Toyota, Hyundai, Mazda, Suzuki and Mitsubishi oil pressure senders.