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Metelli PA591 Engine Water Pump
| Brand | Metelli PA591 |
|---|---|
| Pulley Included | Yes |
| Gasket Or Seal Included | Yes |
| Housing Material | Aluminium |
| Impeller Material | Cast iron |
| Bearing Outside Diameter | 30 |
| Bearing Type | Ball/ball |
| Impeller Vane Quantity | 7 |
| Impeller Outside Diameter | 70 |
| New Or Remanufactured | New |
| Package Contents | Water pump, o-ring |
| Pulley Teeth Quantity | 29 |
| Pulley Width | 21 |
| Fits | Audi · 6 vehicles |
OE-style replacement. New water pump with pulley and seal included.
Aluminium housing. Lightweight construction with a cast iron impeller.
Complete assembly. Includes the water pump and O-ring for easier service.
Cross-references Anchor 9279, DENSO Auto Parts 5070 and Eastern Catalytic 41154 for the same application. See all 50.
Engine Water Pump for Audi S4 and S6
Metelli PA591 is a new engine water pump built for cooling-system service on select Audi applications. It includes a pulley, gasket or seal, and O-ring, with an aluminium housing and cast iron impeller for a direct-fit replacement focused on proper coolant circulation.
Key Features
- New engine water pump for cooling system repair
- Includes pulley, gasket or seal, and O-ring
- Aluminium housing for corrosion-resistant construction
- Cast iron impeller with 7 vanes for coolant movement
- Ball/Ball bearing design for rotational support
- Pulley included with 29 teeth and 21 width
- Fits 1992-1994 Audi S4 and 1995-1997 Audi S6
- Part number PA591 for catalog and cross-reference lookup
Detailed Description
Metelli PA591 is an engine water pump designed for Audi S4 and Audi S6 cooling-system service. The pump uses an aluminium housing, a cast iron impeller, and a ball/bal bearing setup to support consistent operation under normal engine temperatures. With a 70 mm impeller outside diameter and 7 impeller vanes, this unit is built to move coolant through the engine and radiator circuit as specified for the application. The included pulley, gasket or seal, and O-ring help simplify replacement on the listed vehicles. This part cross-references GMB 180-2070 and Four Seasons 20687 for the same application.
Common Problems This Part Can Address
- Coolant leakage from a worn pump seal or housing
- Overheating caused by reduced coolant circulation
- Noise from a failing water pump bearing
- Impeller wear that reduces coolant flow
- Service replacement for aging Audi S4 or Audi S6 cooling components
Installation Notes and Tips
Verify pulley alignment, belt condition, and cooling-system cleanliness before installation. Replace coolant as required by the vehicle service procedure and inspect adjacent hoses, thermostat components, and mounting surfaces for wear or contamination. Confirm fitment by model year before ordering: Fits 1992-1994 Audi S4, N/A; Fits 1995-1997 Audi S6, N/A. Use the PA591 part number during parts lookup to confirm application details.
Quality Assurance
Metelli supplies this water pump as a new replacement component with the listed included seal components and pulley. The PA591 design and materials are specified for the confirmed Audi applications shown above.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1997 | Audi | S6 | 2.2L | L5 | N/A | — |
| 1996 | Audi | S6 | 2.2L | L5 | N/A | — |
| 1995 | Audi | S6 | 2.2L | L5 | N/A | — |
| 1994 | Audi | S4 | 2.2L | L5 | N/A | — |
| 1993 | Audi | S4 | 2.2L | L5 | N/A | — |
| 1992 | Audi | S4 | 2.2L | L5 | N/A | — |
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