Metelli PA508 Engine Water Pump

Engine Water Pump for Nissan and Infiniti

Metelli PA508 is an engine water pump for select Nissan and INFINITI applications. It is a direct-fit cooling system component for vehicles such as the Nissan Sentra, Nissan 200SX, Nissan NX, and INFINITI G20 across the listed model years.

Key Features

• Engine water pump for the cooling system
• Fits select 1991-2002 INFINITI G20 applications
• Fits select 1991-1998 Nissan Sentra, 200SX, and NX applications
• Cross-references Airtex AW9213 and Gates 41138 for the same application
• Metelli part number PA508 for catalog and service matching

Detailed Description

Metelli PA508 is an engine water pump used to circulate coolant through the engine and radiator circuit. It is listed for 1991-1996 and 1999-2002 INFINITI G20, 1991-1994 and 1996-2001 Nissan Sentra, 1995-1998 Nissan 200SX, and 1991-1993 Nissan NX applications. If you are replacing a worn water pump on a Nissan Sentra, Nissan 200SX, or INFINITI G20, this part number helps identify the correct cooling system replacement.

What It Helps Address

• Coolant circulation problems
• Engine overheating caused by pump wear
• Coolant leakage from a failing pump assembly
• Noise from a worn pump bearing or impeller area
• Temperature instability in the cooling system

Installation Notes and Tips

Verify engine application, model year, and cooling system layout before installation. Inspect the thermostat, drive belt condition, hoses, and coolant quality at the same time, since related wear can affect pump performance. Always follow the vehicle service procedure for coolant refill and bleeding after replacement.

Quality Assurance

Metelli PA508 is cataloged as an OE-style replacement water pump for the listed Nissan and INFINITI applications. Confirm fitment against the vehicle’s year and model before ordering.