Upgrade your marine engine maintenance with this high-quality Sea Water Pump Impeller, designed as a direct replacement for QSB Marine Diesel Engines and compatible with a wide range of Sherwood and SMX pumps. Crafted from durable rubber, this impeller features 12 precision-crafted blades and 11 teeth, engineered to enhance water flow and cooling efficiency, ensuring optimal engine performance and longevity. Key Features: · OE Reference Numbers: Accurately molded to match OE numbers 27000K and 3974456, ensuring precise fit and reliable functionality. · Wide Compatibility: Specifically designed to fit QSB Marine Diesel Engines and Sherwood pump models P2701-01, P2710X, P2702-01, P2703-01, P2704-01, P2705-01, P2706-01, P2708-01, P2708X, P2709-01, P2710-01, as well as SMX Pumps SMX 1730, SMX QSB, SMX 17XX, and SMX Super 27. · Enhanced Flow Rate: Provides superior water flow and cooling capacity compared to worn or refurbished impellers, protecting your engine from overheating and maintaining efficient operation. · Durable Rubber Construction: Made from high-quality rubber for excellent wear resistance and flexibility, ensuring long-lasting service life in demanding marine environments. · Precision Design: Features 12 blades and 11 impeller teeth with dimensions approx. 3.39 inches (86mm) width, 2.91 inches (74mm) length, and 0.79 inches (20mm) impeller shaft inner diameter for a perfect fit and smooth installation. · OEM Standard Quality: Manufactured to meet or exceed OEM specifications, making it a reliable and hassle-free replacement for old or damaged impellers. Specifications: · Item Type: Sea Water Pump Impeller · Material: Rubber · OE Number: 27000K, 3974456 · Blades: 12 Blades · Impeller Teeth: 11 Teeth · Impeller Width: Approx. 3.39 inches (86mm) · Impeller Length: Approx. 2.91 inches (74mm) · Impeller Shaft Inner Diameter: Approx. 0.79 inches (20mm) Package Includes: · 1 x Sea Water Pump Impeller This Sea Water Pump Impeller is an essential maintenance part that ensures superior cooling performance and engine protection for marine diesel engines. Its precise fit and durable construction make it an ideal upgrade or replacement, supporting efficient water circulation and reliable engine operation in marine applications.