Spare parts, easy to install. Fine workmanship and perfect style. This listing is for one impeller equivalent to the following part numbers: 09-1027B, 09-1027B-1, 3588256, 1210-0001, 18-3081, SIE-18-3081, 89540, 9-45703, Onan 132-0162, 0460038, 825940, 860203, 3855546, 3858256, 3862281, 21213660, 876243, 3862567, 3856039, 877400, 875811-2, 3856029, 21951346, 129470-42530. Fits pump models: 1673-0001, 1673-9001, 1673-9051, 1673-0003, 1673-1001, 1673-1003, 1673-9003, 3270-0001, 3270-0003, 3290-9001, 3380-0001, 3480-9002, 3480-9011. Compatible with: AQ 150A, B, 175A, 200C, D, F, 211A, 225C, D, F, 231A, 255A, B, 260A, 271A, C, 290A, 311A, B, 430A, B, 431A, 500A, B, 501A, B, 570A, 571A, 572A. Fits Indmar F5b raw water pumps. Specifications: 2-1/4 inch diameter x 1-1/4 inch wide, 5/8 inch shaft diameter, 12 pt. spline drive, 12 blades. CE certified. Material: rubber. Color: black. Package includes: 1 x water pump impeller. Note: Light reflection and different displays may cause slight color variation from the actual item. Measurement error allowed is +/- 1-3 cm.