NGK Pro Series Ignition Coils

Brand: NGK | Part #ENG-556401

Category: Engine Parts > Ignition Coils

The NGK Pro Series Ignition Coils (P/N ENG-556401) is a direct-fit Ignition Coils for the vehicles listed in the fitment section. Materials are spec'd for the operating temperatures and pressures of modern direct-injection and turbocharged engines. Sourced from NGK, a recognized supplier in the aftermarket auto parts channel. Part number ENG-556401 is the manufacturer reference — match it against your old part or VIN-based lookup to confirm you have the right unit. Confirmed fitment on 2010–2018 Audi, Infiniti, Jeep, Buick including A5, A3, Q3, QX50, Q50, Grand Cherokee. Use the year/make/model selector above to verify your exact configuration before checkout. In-stock items leave the warehouse within one business day. Free shipping over $75; ground delivery is 3–7 business days nationwide. Backed by a 90-day return window — if the part doesn't fit or the wrong unit was shipped, send it back for a full refund.

Price: $100.99 | In stock — ships within 1-2 business days. Free shipping.