2003 Mercury Grand Marquis Air Flow Sensors

Keep Your 2003 Mercury Grand Marquis in Top Shape with Quality Air Flow Sensors

Whether you’re repairing or upgrading your Air Flow Sensor, using high-quality parts is key to keeping your 2003 Mercury Grand Marquis looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Mass Air Flow Sensor Connectors and Ambient Air Temperature Sensor Clip. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2003 Mercury Grand Marquis Air Flow Sensor at Advance Auto Parts is around $35.49, with a range that starts at $0.99 and goes up to $69.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Nylon Shield Retainer- Ford and GM (sold by each) and Wire Assembly start at just $0.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Air Flow Sensor, don’t forget to check out other key components like Gas Caps and Oxygen Sensors. At Advance Auto Parts, we’re here to help you keep your 2003 Mercury Grand Marquis in peak condition, inside and out.

Essential 2003 Mercury Grand Marquis Air Flow Sensors

Motorcraft – Wire Assembly (Part No.WPT-322)

Wire Assembly

from

$69.99
Wire Assembly

Carquest Premium – Multi-Use Connector (Part No.ABA3461)

Multi-Use Connector

from

$13.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Carquest Premium – Multi-Use Connector (Part No.PTA2925)

Multi-Use Connector

from

$44.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • WVE electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • Product constructed to meet all design and operating characteristics as intended by the manufacturer.
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Carquest Premium – Multi-Use Connector (Part No.PTA1146)

Multi-Use Connector

from

$25.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • Product constructed to meet all design and operating characteristics as intended by the manufacturer.
  • Product constructed to meet all design and operating characteristics as intended by the manufacturer.
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Dorman – Nylon Shield Retainer- Ford and GM (sold by each) (Part No.700-614)

Nylon Shield Retainer- Ford and GM (sold by each)

from

$0.99
Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long service life.

Product Features:
  • Ideal replacement – this retainer matches the fit and function of the original equipment retainer for this vehicle application
  • Quality material – this retainer is made of durable material for long-lasting service
  • Versatile design – this retainer is suitable for a variety of automotive uses
  • Excellent value – this part offers original equipment quality at a competitive cost
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Most Popular Mass Air Flow Sensor Connector for 2003 Mercury Grand Marquis

Enhance your 2003 Mercury Grand Marquis with this popular Mass Air Flow Sensor Connector we have in stock, for $69.99.

Motorcraft – Wire Assembly (Part No.WPT-322)

Wire Assembly

from

$69.99
Wire Assembly

Best-Selling 2003 Mercury Grand Marquis Ambient Air Temperature Sensor Clip

Upgrade your Grand Marquis with our best-selling Ambient Air Temperature Sensor Clip.

Dorman – Nylon Shield Retainer- Ford and GM (sold by each) (Part No.700-614)

Nylon Shield Retainer- Ford and GM (sold by each)

from

$0.99
Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long service life.

Product Features:
  • Ideal replacement – this retainer matches the fit and function of the original equipment retainer for this vehicle application
  • Quality material – this retainer is made of durable material for long-lasting service
  • Versatile design – this retainer is suitable for a variety of automotive uses
  • Excellent value – this part offers original equipment quality at a competitive cost
See More

FAQs for 2003 Mercury Grand Marquis Air Flow Sensors

What are the best-selling Air Flow Sensors for 2003 Mercury Grand Marquis?

Out of 2 Air Flow Sensors that fit 2003 Mercury Grand Marquis, the following parts are the top sellers:

What’s the price range for 2003 Mercury Grand Marquis Air Flow Sensors?

The prices of Air Flow Sensors for the 2003 Mercury Grand Marquis range from $0.99 up to $69.99 for the most premium parts.

What is the average price of an Air Flow Sensor for a 2003 Mercury Grand Marquis?

The average price for Air Flow Sensors for the 2003 Mercury Grand Marquis is $35.49. Keep in mind the variety of part types within our Air Flow Sensor category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Air Flow Sensors for other Mercury Grand Marquis model years?

Yes, we carry Air Flow Sensors for 32 model years of Mercury Grand Marquis between 1978 and 2011. The following model years are the most popular for Air Flow Sensor purchases: 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, and 2002.

What are the cheapest Air Flow Sensors for my 2003 Mercury Grand Marquis?

The cheapest 2003 Mercury Grand Marquis Air Flow Sensors we carry are:

What types of Air Flow Sensors do you sell for my 2003 Mercury Grand Marquis?

As of 11/2/25, these are some of the most in-demand types of Air Flow Sensors for a 2003 Mercury Grand Marquis:

Can I get help with 2003 Mercury Grand Marquis Air Flow Sensor orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Air Flow Sensors and more.

What is your return policy for Mercury Grand Marquis Air Flow Sensors?

Advance Auto Parts keeps returns simple. For new Mercury Grand Marquis Air Flow Sensors and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.