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Metelli PA447 Engine Water Pump
| Brand | Metelli PA447 |
|---|---|
| Gasket Or Seal Included | Yes |
| Housing Material | Aluminium |
| Impeller Material | Cast iron |
| Bearing Outside Diameter | 40 |
| Bearing Type | Ball/ball |
| Impeller Vane Quantity | 8 |
| Impeller Outside Diameter | 77 |
| New Or Remanufactured | New |
| Package Contents | Water pump, gasket |
| Fits | Mercedes-Benz · 22 vehicles |
New water pump. Includes a gasket for a ready-to-install replacement.
Aluminium housing. Lightweight construction helps resist corrosion.
Cast-iron impeller. Built with an 8-vane design for efficient coolant flow.
Cross-references Airtex AW9231, Ansa 8756 and FEL-PRO 1240 for the same application. See all 56.
Engine Water Pump for Mercedes-Benz V8 Applications
Metelli PA447 is a new engine water pump built for select Mercedes-Benz V8 models, including the 1986-1991 Mercedes-Benz 420SEL, 560SEC, 560SEL, and 1986-1989 Mercedes-Benz 560SL. It is specified with an aluminum housing, cast iron impeller, and included gasket for a direct replacement service on the cooling system.
Key Features
- New engine water pump for cooling system service
- Aluminum housing for corrosion-resistant construction
- Cast iron impeller with 8 vanes
- Ball/Ball bearing design for rotational support
- Impeller outside diameter: 77 mm
- Bearing outside diameter: 40 mm
- Gasket included in the package contents
- Metelli PA447 cross-references Airtex AW9231 and Gates 43297
Detailed Description
Metelli PA447 is an OE-style replacement engine water pump for Mercedes-Benz 420SEL, 560SEC, 560SEL, and 560SL applications. The aluminum housing and cast iron impeller are paired with an 8-vane design to support coolant circulation through the engine cooling system. This part number, PA447, is a practical choice when replacing a worn water pump on Mercedes-Benz V8 vehicles from the 1986-1991 model years.
This part cross-references Airtex AW9231 and Gates 43297 for the same application.
What It Is Used For
- Replacing a leaking or noisy water pump
- Restoring coolant circulation in the engine cooling system
- Addressing overheating caused by pump wear or bearing failure
- Correcting coolant seepage at the pump mounting surface
- Servicing Mercedes-Benz 420SEL, 560SEC, 560SEL, and 560SL cooling systems
Installation Notes and Tips
Verify engine application and mounting configuration before installation. Clean the gasket surface thoroughly, inspect the cooling system for contamination or belt wear, and replace coolant as required during water pump service. Confirm pulley alignment and check for leaks after startup.
Quality Assurance
Metelli PA447 is a new replacement water pump built with an aluminum housing, cast iron impeller, and included gasket for service-ready installation on confirmed Mercedes-Benz applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1991 | Mercedes-Benz | 420SEL | 4.2L | V8 | N/A | — |
| 1991 | Mercedes-Benz | 560SEC | 5.6L | V8 | N/A | — |
| 1991 | Mercedes-Benz | 560SEL | 5.6L | V8 | N/A | — |
| 1990 | Mercedes-Benz | 420SEL | 4.2L | V8 | N/A | — |
| 1990 | Mercedes-Benz | 560SEC | 5.6L | V8 | N/A | — |
| 1990 | Mercedes-Benz | 560SEL | 5.6L | V8 | N/A | — |
| 1989 | Mercedes-Benz | 420SEL | 4.2L | V8 | N/A | — |
| 1989 | Mercedes-Benz | 560SEC | 5.6L | V8 | N/A | — |
| 1989 | Mercedes-Benz | 560SEL | 5.6L | V8 | N/A | — |
| 1989 | Mercedes-Benz | 560SL | 5.6L | V8 | N/A | — |
| 1988 | Mercedes-Benz | 420SEL | 4.2L | V8 | N/A | — |
| 1988 | Mercedes-Benz | 560SEC | 5.6L | V8 | N/A | — |
| 1988 | Mercedes-Benz | 560SEL | 5.6L | V8 | N/A | — |
| 1988 | Mercedes-Benz | 560SL | 5.6L | V8 | N/A | — |
| 1987 | Mercedes-Benz | 420SEL | 4.2L | V8 | N/A | — |
| 1987 | Mercedes-Benz | 560SEC | 5.6L | V8 | N/A | — |
| 1987 | Mercedes-Benz | 560SEL | 5.6L | V8 | N/A | — |
| 1987 | Mercedes-Benz | 560SL | 5.6L | V8 | N/A | — |
| 1986 | Mercedes-Benz | 420SEL | 4.2L | V8 | N/A | — |
| 1986 | Mercedes-Benz | 560SEC | 5.6L | V8 | N/A | — |
| 1986 | Mercedes-Benz | 560SEL | 5.6L | V8 | N/A | — |
| 1986 | Mercedes-Benz | 560SL | 5.6L | V8 | N/A | — |
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