Genuine OEM Detroit Diesel injector wiring harness, part number 23518253. Fits Series 50 8.5L engines (DDEC III). For 4-cylinder Series 50 only-will NOT fit Series 60 (6-cylinder) engines. NOS (new old stock) condition in original packaging. Price is firm as listed unless “offers” enabled. Unsolicited discount requests will be ignored; repeated messaging may result in blocking. Honest mistake or fitment question? Message me first, happy to work it out!