This replacement impeller replaces the following inboard engines: Jabsco: 18653-0001, 653-0001; Johnson: 09-810B-1, 09-810B1-1, 09-810B; Westerbeke: 034440, 34440; Yanmar: 128990-42200; Sierra: 18-45713; Malloría: 9-45713; CEF: 500101; JMP: 7050-01. Parameters: Number of Blades: 6 Material: Neoprene Shaft Style: Slotted Shaft Pin Usage: Cooling System (Water) Installation Instructions: Lubricate with silicone grease, glycerin or dish soap during installation (Not included) Condition: All parts are in stock, we can ship within 1-2 business days! Application: Compatible with Jabsco pumps: 29440-1001 29470-2231C 51520-2001 Fit Johnson Pump: F4B 10-24509-01 10-24509-02 Compatible with Westerbeke motor. 4.0BCD 4.4BCD 4.4WMD 5.0BCDA 5.0BCDB 6.0BCD 7.6BTD 7.7WMD 8.0BTD 8.0BTDA 8.0WMD 10.0BTD 10.0BTDA 11.0BTD 11.0BTD 12.5BTD 12.5BTDB 12. 5WMD Fit Westerbeke Pumps: 033636 33636 Compatible with Yanmar engines: 2GM20-YEU 2GM20C-YEU 2GM20F-YEU 2GM20FC-YEU 2YM15 3GM30-YEU 3GM30C-YEU 3GM30F-YEU 3GM30FC-YEU 3YM20 3YM27A 3YM30 3YM30R Fit Yanmar Pumps: 128377-42500 128397-42500