HomeBelts and Cooling > Water Pump and Related ComponentsMetelli PA591 Engine Water Pump
Part #: PA591

Metelli PA591 Engine Water Pump

⚙️ 6 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, S4 and S6
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Reliable Engine Water Pump for Audi S4 and S6

The Metelli PA591 engine water pump is designed to maintain optimal cooling system performance in Audi S4 and S6 models. Featuring durable materials and precise engineering, this new water pump ensures efficient coolant circulation and engine temperature regulation.

  • Includes pulley with 29 teeth and 21 mm width for direct fitment
  • Comes with gasket and o-ring for secure sealing
  • Aluminium housing for lightweight strength and corrosion resistance
  • Cast iron impeller with 7 vanes and 70 mm diameter for effective coolant flow
  • Ball/ball bearing type with 30 mm outside diameter for smooth operation and longevity
  • New, not remanufactured, ensuring reliable performance

Technical Details of Metelli PA591 Water Pump

This engine water pump is engineered with an aluminium housing that offers a balance of durability and heat dissipation. The cast iron impeller, featuring seven vanes and a 70 mm outside diameter, is designed to optimize coolant movement through the engine’s cooling system. The included pulley, with 29 teeth and a 21 mm width, matches factory specifications for the Audi S4 and S6, ensuring proper belt alignment and tension. The ball/ball bearing with a 30 mm outside diameter supports smooth rotation and reduces wear over time. The package includes a gasket and o-ring to provide a tight seal and prevent leaks during installation.

Compatible Vehicles and Common Applications

  • Compatible with Audi S4 models requiring a direct replacement water pump
  • Compatible with Audi S6 models for maintaining cooling system integrity
  • Addresses issues such as coolant leaks, overheating, and noisy water pump operation
  • Replaces worn or damaged water pumps to restore engine cooling efficiency
  • Prevents engine damage caused by inadequate coolant circulation

Installation Notes and Tips

When installing the Metelli PA591 water pump, ensure the cooling system is fully drained before removal of the old pump. Use the included gasket and o-ring to achieve a proper seal and prevent coolant leaks. Verify pulley alignment and belt tension after installation to avoid premature wear. It is recommended to inspect related components such as belts and hoses during replacement to maintain overall cooling system health.

Quality Assurance and Warranty

The Metelli PA591 engine water pump is a new, high-quality replacement part manufactured to meet OEM specifications. Constructed with durable aluminium housing and cast iron impeller materials, it is designed for long service life. While specific warranty details are not provided, Metelli products typically adhere to strict quality control standards to ensure reliable performance in Audi S4 and S6 vehicles.

BrandMetelli
Part NumberPA591
Pulley IncludedYes
Gasket Or Seal IncludedYes
Housing MaterialAluminium
Impeller MaterialCast iron
Bearing Outside Diameter30
Bearing TypeBall/ball
Impeller Vane Quantity7
Impeller Outside Diameter70
New Or RemanufacturedNew
Package ContentsWater pump, o-ring
Pulley Teeth Quantity29
Pulley Width21

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1997AudiS62.2LL5N/A
1996AudiS62.2LL5N/A
1995AudiS62.2LL5N/A
1994AudiS42.2LL5N/A
1993AudiS42.2LL5N/A
1992AudiS42.2LL5N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

01092054 121 004054 121 004A054 121 004AV054 121 004AX1-905710921130120022131-2358133021180-20702068721823252-47232 15 000735098170000035231617119341154506336507051-20725380343105543416654528600299628MP376801191927994115496124980550AQ-1051AW9279AWP-9057DP239FP2298FWP1656GWVW-21AJan-57P-2407P535PA5102PA664PPQ-0937PWP9057T1127US9279VKPC81612WP-9057WP0071WP1848

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.