More Information for AIRTEX AW5078
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AIRTEX AW5078 Specifications
Fan Clutch IncludedNo
Housing MaterialCast Iron
Hub Height (MM)120.78
Hub Hole Quantity4
Impeller MaterialSteel
Impeller RotationStandard
Impeller Vane Quantity6
Includes Back HousingNo
Mounting Hole Quantity6
Pulley IncludedNo
Water Pump Drive TypeSerpentine Belt

Each pump is engineered to keep your engine cooling system in premium running condition and deliver maximum coolant flow and durability just like its OE counterpart. Airtex utilizes the same robotic assembly process for both OE and aftermarket pumps, maintaining the highest quality to help prevent engine overheating.

Features & Benefits:
  • Precision-ground and permanently lubricated unitized bearing assemblies
  • Unitized seals for exceptional protection against leakage and contamination
  • Durable housings that feature precisely machined mounting surfaces for proper sealing
  • The latest impeller upgrades engineered for maximum coolant flow
  • Hubs that are pressed on with precision-guided tooling
  • Boxed with tri-lingual instructions, application-specific information sheets and necessary hardware to get the job done right.
Every belt driven water pump has a weep hole that might leak a little in the beginning. Some seepage from the weep hole is normal during the break-in period (about 10 minutes), and does not indicate a defect.
Cooling System Maintenance | Tips & Tools

Without regular maintenance, cooling system components will degrade and fail prematurely, which can lead to costly engine damage. Protect your engine with simple preventative maintenance:

  • Completely drain and flush the system using Cooling System Flush prior to installation. Flushing the system is critical to prevent system contamination and failure.
  • Consider replacing the Radiator Hoses (and Hose Clamps), Thermostat and Radiator Cap as part of routine preventative maintenance. System contamination can cause these parts to degrade and fail over time, which can lead to severe engine damage from overheating.
  • Refill radiator with fresh Coolant / Antifreeze according to the volume and formula specified in your Owner's Manual. Inspect levels and condition every year.

Why Does My Water Pump Look Different? The Purpose of Weep Wells

Standard vs. Reverse Rotation Water Pumps

How to Flush and Fill a Cooling System

Cooling System Contamination Facts

OEM / Interchange Numbers: 10140667, 12512740, 12512741, 12520263, 12525125, 12551474, 19168608, AW5047

AIRTEX Warranty Information:
Limited lifetime for electric fuel pumps, electric fuel pump assemblies and water pumps (non-commercial vehicles). Rest - 12 months/12,000 miles.