The 707-0291-20 part of Concord is a popularly used spark plug made by NGK, one of the leading manufacturers of automotive spark plugs and other related products. The 707-0291-20 part is a platinum spark plug with a 0.6 mm center electrode and a 0.7 mm ground electrode, making it suitable for a wide range of engines. The 707-0291-20 spark plug features a 14mm thread size, a 0.7 mm thread reach, and features a projected tip type design. The 707-0291-20 spark plug is designed for efficient ignition and a long service life and is specifically recommended for use in the following vehicle models, among others: Honda Accord, Honda Civic, Honda Odyssey, Honda CR-V, Honda Pilot, and Acura TL.