How to Match This Part
This is a flexible rubber raw water pump impeller. It sits inside the pump housing behind the cover plate and is driven by a keyed shaft. It replaces the primary original part number Jabsco 18838-0001, and is also supplied against Johnson 09-701B-1, JMP 7192-01, DJ 08-38-1201 and Sherwood 09959.
Match this part by checking your engine in this order:
1. Original impeller part number (stamped on the old impeller or listed in the pump section of your parts catalog)
2. Width (this listing is 32 mm thick, not the 22.4 mm JMP 7172-01)
3. Drive type (this listing is a key-drive hub, not a spline)
4. Pump model (cast or labelled on the pump body)
Identify it physically before ordering. This impeller has twelve vanes moulded in black neoprene around a machined brass key-drive insert. JMP 7192-01 is 62.5 mm diameter, 32 mm width and 16 mm (5/8 in.) bore. Jabsco 18838-0001 is Profile W. It is not interchangeable with JMP 7172-01 (same diameter, 22.4 mm width) or with 57 mm Jabsco 1210-0001 / 4568-0001.
- ✓ Primary OEM: Jabsco 18838-0001
- ✓ Product form: 12-blade neoprene impeller, brass key-drive insert, 32 mm width
- ✓ Fitment: part number, then width, then drive type
