1999 Mercury Grand Marquis Power Window Parts

Keep Your 1999 Mercury Grand Marquis in Top Shape with Quality Power Window Parts

Whether you’re repairing or upgrading your Power Window Part, using high-quality parts is key to keeping your 1999 Mercury Grand Marquis looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Power Window Switch Connectors and Power Window Relays. 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 1999 Mercury Grand Marquis Power Window Part at Advance Auto Parts is around $51.24, with a range that starts at $45.49 and goes up to $56.99. With 2 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Power Window Switch Connector and Multi-Purpose Relay start at just $45.49 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Power Window Part, don’t forget to check out other key components like Vehicle Hoods and Vehicle Windows. At Advance Auto Parts, we’re here to help you keep your 1999 Mercury Grand Marquis in peak condition, inside and out.

Essential 1999 Mercury Grand Marquis Power Window Parts

Carquest Premium – Multi-Purpose Relay (Part No.RAC1346)

Multi-Purpose Relay

from

$56.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
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Carquest Premium – Power Window Switch Connector (Part No.PTC2866)

Power Window Switch Connector

from

$45.49
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.
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Most Popular Power Window Switch Connector for 1999 Mercury Grand Marquis

Enhance your 1999 Mercury Grand Marquis with this popular Power Window Switch Connector we have in stock, for $45.49.

Carquest Premium – Power Window Switch Connector (Part No.PTC2866)

Power Window Switch Connector

from

$45.49
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.
See More

Best-Selling 1999 Mercury Grand Marquis Power Window Relay

Upgrade your Grand Marquis with our best-selling Power Window Relay.

Carquest Premium – Multi-Purpose Relay (Part No.RAC1346)

Multi-Purpose Relay

from

$56.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
See More

FAQs for 1999 Mercury Grand Marquis Power Window Parts

What are the best-selling Power Window Parts for 1999 Mercury Grand Marquis?

Out of 2 Power Window Parts that fit 1999 Mercury Grand Marquis, the following parts are the top sellers:

What’s the price range for 1999 Mercury Grand Marquis Power Window Parts?

The prices of Power Window Parts for the 1999 Mercury Grand Marquis range from $45.49 up to $56.99 for the most premium parts.

What is the average price of a Power Window Part for a 1999 Mercury Grand Marquis?

The average price for Power Window Parts for the 1999 Mercury Grand Marquis is $51.24. Keep in mind the variety of part types within our Power Window Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Power Window Parts for other Mercury Grand Marquis model years?

Yes, we carry Power Window Parts for 30 model years of Mercury Grand Marquis between 1980 and 2011. The following model years are the most popular for Power Window Part purchases: 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, and 2003.

What are the cheapest Power Window Parts for my 1999 Mercury Grand Marquis?

The cheapest 1999 Mercury Grand Marquis Power Window Parts we carry are:

Does Advance Auto Parts sell Power Window Parts for any other 1999 Mercury models?

Yes. We stock Power Window Parts for 5 other popular 1999 Mercury models. Some of the most popular are 1999 Cougar Power Window Parts, 1999 Mountaineer Power Window Parts, 1999 Villager Power Window Parts, 1999 Sable Power Window Parts, and 1999 Tracer Power Window Parts.

What types of Power Window Parts do you sell for my 1999 Mercury Grand Marquis?

As of 11/2/25, these are some of the most in-demand types of Power Window Parts for a 1999 Mercury Grand Marquis:

Can I get help with 1999 Mercury Grand Marquis Power Window Part orders?

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

What is your return policy for Mercury Grand Marquis Power Window Parts?

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