Up for sale is a brand new replacement Accessory Drive Assembly / Oil Pump for Detroit Diesel Series 60 engines. Built to meet or exceed OEM specifications, this heavy-duty component ensures optimal lubrication, smooth power transfer, and reliable engine performance under high-load commercial conditions. Engine Compatibility: Detroit Diesel Series 60 (11.1L / 12.7L / 14L). Condition: 100% Brand New. Product Name: Accessory Drive Assembly / Oil Pump. Compatible Engine: Detroit Diesel Series 60. Fitment Type: Direct Replacement. Material: Heavy-Duty Cast Iron & Precision Machine Components. Precision Engineered: Designed to exact OEM tolerances for direct fit and easy installation. Enhanced Durability: Premium-grade heavy-duty construction resists high heat, pressure, and long-haul wear. Optimal Performance: Restores factory oil flow and accessory drive operation to prevent premature engine wear. Fits various commercial trucks and equipment powered by Detroit Diesel Series 60 engines. Note: Please verify your original part number (23523998) or match your engine serial number before purchasing to ensure correct fitment. If you are unsure, please feel free to send us your VIN or Engine Serial Number (ESN) for confirmation. 1 x Accessory Drive Oil Pump Assembly (Part # 23523998).