NGK Ignition Coil - U5014 (NGK48041) Plug Top Coil. The NGK 48041 (U5014) is a 4-pin, 12V oil-filled ignition coil designed primarily for VAG group (Audi, VW, Porsche, Seat, Skoda) vehicles, featuring engines like the 3.0 TFSI, 3.2 FSI, and 4.2 FSI from 2002–2026.