Spare parts, easy to install. Fine workmanship and perfect style. This listing is for one new impeller equivalent to 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. Dimensions: 2-1/4 inch diameter x 1-1/4 inch wide, 5/8 inch shaft diameter, 12 Pt. Spline Drive, 12 blades. CE compliant. Material: rubber. Color: black. Package includes: 1 x water pump impeller. Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance is +/- 1-3 cm.