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2003 Mercury Grand Marquis Car Parts & Accessories
You have come to the right place if you need new or replacement parts for your 2003 Grand Marquis. Advance Auto carries over 1,752 aftermarket parts for your 2003 Mercury Grand Marquis, along with original equipment manufacturer (OEM) parts. We’ve got amazing prices on 2003 Grand Marquis Tools, Fluids & Garage and Transmission & Drivetrain parts. Plus, our selection of 2003 Electronics & Navigation parts for your Grand Marquis are some of the lowest in the market.
Find replacement parts and upgrades for your 2003 Mercury Grand Marquis. Use our customer reviews of Brakes, Steering & Suspension parts and others, along with user ratings on the many of the products we offer.
You won’t find an easier way to shop for 2003 Mercury Grand Marquis performance parts, 2003 Mercury Grand Marquis body parts, interior components, or any type of part for that matter. Get your Grand Marquis upgraded or back in pristine shape by shopping Advance Auto Parts.
2003 Mercury Grand Marquis Auto Parts and Accessories
2003 Grand Marquis Electronics & Navigation Parts
Below you can find the top 2003 Mercury Grand Marquis aftermarket accessories. Want to see the complete catalog of Electronics & Navigation parts? Click on View All to view each individual Mercury 2003 Grand Marquis part.
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Metra Electronics - OEM Car Stereo Wire Harness (Part No. AAPWHFD4)
DescriptionThis harness is used to wire up to the aftermarket radio harness and plug into the OEM wire harness behind radio for 2003+ Ford, Lincoln, and Mercury models.
Product Features:- Provides power to aftermarket radio
- Allows speaker connection
- Fits into factory plug
- Used for AM and FM reception when replacing the OEM radio
from $16.99
View Product -
Metra Electronics - Radio Installation Dash Kit - Ford, Lincoln, Mercury (Part No. AAP586FT)
DescriptionRadio install kit for select Ford, Lincoln, Mercury models providing provisions for a single DIN radio.
Product Features:- Fits Single DIN Radios.
- Easy to install with simple instructions and no dash alterations.
- Designed to fit like the factory radio using factory hole locations.
- Manufactured of high grade ABS plastic with factory style texturing.
- Rounded edges on the kit provide a factory look that enhances the interior appearance.
from $25.49
View Product -
Metra Electronics - Ford 98-Up Wire Harness Adapter (Part No. 70-1771)
DescriptionThis harness is used to wire up to the aftermarket radio harness and plug into the OEM wire harness behind radio for Ford 85-04 models.
Product Features:- Provides power to aftermarket radio
- Allows speaker connection
- Fits into factory plug
- Used for AM and FM reception when replacing the OEM radio
from $18.79
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2003 Grand Marquis Tools, Fluids & Garage Parts
Customers frequently purchase these best-selling 2003 Mercury Grand Marquis Tools, Fluids & Garage parts.
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Prestone - All Vehicles Antifreeze + Coolant: 10 Year/300k Miles, Ready-to-Use 50/50, 1 Gallon (Part No. AF2100)
DescriptionPrestone® All Vehicles antifreeze+coolant +TOTAL PROTECTION (AFC) is formulated to work with all vehicles; all makes, models, years & fluid colors. While ordinary antifreeze coolant only manages 2/3rd the job, the basic freeze and boil points, Prestone's Total Protection adds an extra layer that keeps your engine clean from corrosion, rust and buildup. Total Protection includes patented Cor-Guard® technology, which instantly protects parts from corrosion, buildup, pitting, scaling, rust and other damage compared to ordinary coolants that can't keep the system clean. Internal damage can cause engine part failure or clogging, leading to expensive repairs and inconveniences. Avoid costly repairs and vehicles in the shop with Prestone All Vehicles antifreeze+coolant + TOTAL PROTECTION. This extended life coolant is designed to work with all new engines while also being backwards compatible improving protection in all older engines. Prestone All Vehicles AFC Total Protection and Longer Engine Life guarantee are for 10yrs / 300,000 miles. Year Round Protection - Antifreeze to -34 Deg. F; Antiboil/overheat protection to +265 Deg. F.
Product Features:- Formulated to work with All Vehicles. Universally works with all fluid colors; All OAT, POAT, HOAT & IAT. For all engines, new and backwards compatible to older engines.
- Longer Engine Life Guarantee - 10 Yr., 300,000 mile Extended life formula.
- Total Protection - Includes Prestone Cor-Guard® technology, unmatched cooling system parts protection that protects against engine damage; rust, corrosion, scale, build-up and clogging. Protection for 10yrs / 300,000 miles.
- Ready to Use formula - Prediluted 50/50. Perfect for small volume top-off or complete drain and refill of the cooling system
Read 3 review(s)Review snapshot ® by PowerReviews
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Gallon of Antifreeze
Gallon of Antifreeze
Submitted 2022-02-11
By Froggy
From Lansing
It's a gallon of Antifreeze, pour in your radiator.
Bottom Line recommended
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This is the only product I use in my vehicles
This is the only product I use in my vehicles
Submitted 2022-02-09
By SABB
From Savannah Georgia
It's great for my radiator
Bottom Line recommended
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I would buy this wax every time I run out.
I would buy this wax every time I run out.
Submitted 2022-02-09
By Terry
From Sebring
Pour and go
Bottom Line recommended
from $15.99
View Product -
Prestone - All Vehicles Antifreeze + Coolant: 10 Year/300k Miles, Concentrate, 1 Gallon (Part No. AF2000)
DescriptionPrestone® All Vehicles antifreeze+coolant +TOTAL PROTECTION (AFC) is formulated to work with all vehicles; all makes, models, years & fluid colors. While ordinary antifreeze coolant only manages 2/3rd the job, the basic freeze and boil points, Prestone's Total Protection adds an extra layer that keeps your engine clean from corrosion, rust and buildup. Total Protection includes patented Cor-Guard® technology, which instantly protects parts from corrosion, buildup, pitting, scaling, rust and other damage compared to ordinary coolants that can't keep the system clean. Internal damage can cause engine part failure or clogging, leading to expensive repairs and inconveniences. Avoid costly repairs and vehicles in the shop with Prestone All Vehicles antifreeze+coolant + TOTAL PROTECTION. This extended life coolant is designed to work with all new engines while also being backwards compatible improving protection in all older engines. Prestone All Vehicles AFC Total Protection and Longer Engine Life guarantee are for 10yrs / 300,000 miles. Maximum @ 70/30 Antifreeze to -84 Deg. F; Antiboil/overheat protection to +276 Deg. F.
Product Features:- Formulated to work with All Vehicles. Universally works with all fluid colors; All OAT, POAT, HOAT & IAT. For all engines, new and backwards compatible to older engines.
- Longer Engine Life Guarantee - 10 Yr., 300,000 mile Extended life formula.
- Total Protection - Includes Prestone Cor-Guard® technology, unmatched cooling system parts protection that protects against engine damage; rust, corrosion, scale, build-up and clogging. Protection for 10yrs / 300,000 miles.
- Concentrated formula. Must mix with high quality (distilled/deionized) water to the desired ratio. Can be used for top-off, complete drain and refill or flush and refill of the cooling system.
Read 3 review(s)Review snapshot ® by PowerReviews
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Good product.
Good product.
Submitted 2022-02-11
By Jake
From woodbridge
Put it in the car radiator.
Bottom Line recommended
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I would buy this product again..
I would buy this product again..
Submitted 2022-02-08
By Gee
From Columbus, GA
I used this antifreeze, after I replaced a water pump ...
Bottom Line recommended
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Full strength for all makes
Full strength for all makes
Submitted 2022-01-28
By Bbrag
From Perry Hall
Great for changing all your antifreeze Dilute your own and save!
Bottom Line recommended
from $18.99
View Product -
Valvoline - MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Gallon (Part No. 773775)
DescriptionValvoline MaxLife Multi-Vehicle Automatic Transmission Fluid (ATF) is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life. Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi.
Product Features:- Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
- Long life friction modifiers help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
- High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
- Developed with anti-wear technology to help improve transmission durability
- Advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
- Suitable for 95% of traditional ATFs including Dex/Merc, Mercon LV & Mercon V
Read 3 review(s)Review snapshot ® by PowerReviews
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Excellent ATF for Buick 4T65-E transmission
Excellent ATF for Buick 4T65-E transmission
Submitted 2022-04-06
By John in MD
From Baltimore, MD
My 2001 Century started having hard shifts at around 135k miles. I dropped the pan, replaced the filter, and refilled with about 7 quarts of Valvoline MaxLife ATF. I also added in 11 oz of BG ATC (automatic transmission conditioner). What a difference! My car now shifts smoothly and solidly. Maybe I didn't even need the BG ATC? All I know is it now runs like when it was new!
Bottom Line recommended
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I would buy again
I would buy again
Submitted 2022-02-22
By Lincoln
From 74021
Changed my fluid and I can tell a difference
Bottom Line recommended
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Repeat purchase of this ATF
Repeat purchase of this ATF
Submitted 2022-02-14
By Guli
From Puerto Rico
The ATF is being used in a 2004 TB 4.2 L engine with the 4L60 transmission. This SUV requires DEXRON III and manufacturer has updated and aproved the DEXRON VI. This is a high mileage (170k) transmission that I rebuilt at 85K with new reinforced SHELL, Bendix clutches, high volume pump and all new solenoids. ATF total capacity is 11.4 quarts including 1 quart (64 oz) of LUCAS ATF additive on every scheduled change at 50k miles, filter and gasket included. Works fine with smooth shift at all temperatures, with or w/o 4x4, specially when towing my boat trailer.
Bottom Line recommended
from $35.99
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2003 Grand Marquis Transmission & Drivetrain Parts
No need for it to be difficult to find Transmission & Drivetrain parts for your 2003 Mercury Grand Marquis. Compare prices, read reviews, and buy your Grand Marquis Transmission & Drivetrain parts online for delivery or in-store pick up.
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Valvoline - ATF for Mercon®V Applications Conventional, 1 Quart (Part No. 822345)
DescriptionValvoline ATF for MERCON®V Applications is a high-quality transmission fluid meeting and exceeding the requirements of the Ford Mercon V specification which covers most Ford passenger cars and light-duty trucks (except those specifying MERCON®SP, MERCON®LV or Type F fluids), including Lincoln and Mercury, as well as most pre-2006 GM vehicles and many imports. Recommended for use in the following applications: MERCON®V, MERCON®, DEXRON®-III, DEXRON®-II, Caterpillar TO-2, Allison C-4. Other applications include Power steering fluid where a DEXRON® or MERCON® fluid is recommended. Suitable to use in Nissan Matic D, Matic J and Matic K.
Product Features:- Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
- Enhanced anti-shudder protection for smooth shifting and maximum power transfer
- Developed with anti-wear technology to help improve transmission durability
- Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
Read 3 review(s)Review snapshot ® by PowerReviews
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Good fluid
Good fluid
Submitted 2021-08-02
By Aaron
From Undisclosed
Did a power steering fluid flush and fill in my mustang and this worked great.
Bottom Line NULL
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Valvoline is always a good choice.
Valvoline is always a good choice.
Submitted 2021-05-29
By Bill
From Undisclosed
Great product!
Bottom Line NULL
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I would buy this again
I would buy this again
Submitted 2021-05-27
By William
From Undisclosed
product as shown and advertised
Bottom Line NULL
from $12.99
View Product -
Valvoline - DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No. 798153)
DescriptionValvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON®, DEXRON®-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.
Product Features:- Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
- Enhanced anti-shudder protection for smooth shifting and maximum power transfer
- Developed with anti-wear technology to help improve transmission durability
- Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
Read 3 review(s)Review snapshot ® by PowerReviews
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Good to go
Good to go
Submitted 2022-01-20
By Pogo
From Pensacola
Just the needed fluid type and amount
Bottom Line recommended
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I would buy again
I would buy again
Submitted 2021-08-25
By Nancy
From Undisclosed
Works
Bottom Line NULL
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Fluid drive
Fluid drive
Submitted 2021-06-16
By Howard
From Undisclosed
This is the right fluid for 94 Camaro.
Bottom Line NULL
from $11.99
View Product -
Spicer - Universal Joint (Part No. 5-213X)
DescriptionWhen you see the Spicer name, you know you are buying the highest quality product available. Spicer universal joints are no exception. Dana manufactures a full line of Spicer universal joints that are engineered to ensure longer life for vehicles.Read 3 review(s)Review snapshot ® by PowerReviews
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YES
YES
Submitted 2021-11-09
By Matt
From Green bay
GOOD
Bottom Line recommended
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Would buy again
Would buy again
Submitted 2021-03-26
By David
From Undisclosed
Had to replace. New one is perfect
Bottom Line NULL
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I would buy again
I would buy again
Submitted 2021-01-23
By Dan
From Undisclosed
Exact fit
Bottom Line NULL
from $31.99
View Product -
2003 Grand Marquis Brakes, Steering & Suspension Parts
Customers frequently purchased the following top Brakes, Steering & Suspension parts for their 2003 Grand Marquis. Click on View All to see more of the cheapest 2003 Grand Marquis aftermarket Brakes, Steering & Suspension replacement parts.
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Valvoline - DEX/MERC Automatic Transmission Fluid, 1 Gallon (Part No. 773636)
DescriptionValvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON®, DEXRON®-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.
Product Features:- Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
- Enhanced anti-shudder protection for smooth shifting and maximum power transfer
- Developed with anti-wear technology to help improve transmission durability
- Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
Read 3 review(s)Review snapshot ® by PowerReviews
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Good to go
Good to go
Submitted 2022-01-20
By Pogo
From Pensacola
Just the needed fluid type and amount
Bottom Line recommended
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I would buy again
I would buy again
Submitted 2021-08-25
By Nancy
From Undisclosed
Works
Bottom Line NULL
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Fluid drive
Fluid drive
Submitted 2021-06-16
By Howard
From Undisclosed
This is the right fluid for 94 Camaro.
Bottom Line NULL
from $31.99
View Product -
MOOG - Coil Spring Set (Part No. CC865)
DescriptionBy constantly introducing design enhancements that extend product life and simplify installation and replacement, MOOG has earned its reputation as the chassis industry's Problem Solver.
Product Features:- 100% Load tested
- Easy to install
- Provides like-new steering
- Designed to lower stresses for longer service life
- Worn or sagging coil springs can cause premature tire wear due to vehicle misalignment
Read 3 review(s)Review snapshot ® by PowerReviews
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did the job
did the job
Submitted 2021-08-02
By al
From Undisclosed
worked their just springs
Bottom Line NULL
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I would buy this product again if needed and any other parts
I would buy this product again if needed and any other parts
Submitted 2021-07-11
By Kasheema
From Undisclosed
The product is great
Bottom Line NULL
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Ues
Ues
Submitted 2018-03-24
By Jamaal
From undisclosed
It fits
Bottom Line NULL
from $142.99
View Product -
Monroe - Quick-Strut Complete Strut Assembly (Part No. 171346)
DescriptionFeaturing a vehicle-specific design, Monroe® Quick-Strut® strut assemblies are fit checked, ride tested and engineered to restore factory ride height and ride performance. Assembled in Paragould, AR, they include all required components in a single unit.
Product Features:- QUICKER, SAFER, EASIER AND COMPLETE REPAIR -- Includes everything you need for strut replacement in a single, fully assembled unit with no need for a spring compressor
- RESTORES RIDE HEIGHT -- Precisely calibrated to meet the OE design, each application-specific coil spring type is engineered to restore ride height and support the vehicle's weight
- VEHICLE-SPECIFIC DESIGN -- Application-specific coil spring, mount and strut designs ensure optimized ride and handling experience unique to each vehicle profile
- OE QUALITY -- Preassembled upper strut mount, coil spring, and strut feature an OE-style design for seamless fit, form, and function
- MADE TO LAST -- Manufactured with high-quality steel, featuring a superior tube and weld design to deliver structural integrity and durability
- MAINTAINS VEHICLE CONTROL -- Reduces body sway, vibration and road harshness before it reaches the passenger cabin for improved vehicle handling
- IMPROVES STEERING -- Premium upper strut mount helps ensure smooth, "like-new" steering precision and prevents noise, vibration, harshness and memory steer
- RUST RESISTANCE -- Protective coating resists rust and corrosion while salt spray testing ensures it's ready for the elements
- ASSEMBLED IN THE USA -- Each Quick-Strut assembly is assembled with pride in Paragould, Arkansas
Read 3 review(s)Review snapshot ® by PowerReviews
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Great so far!
Great so far!
Submitted 2019-07-24
By Daniel
From Undisclosed
Good so far, purchased to replace the front struts on my 2003 Lincoln town car. Just installed them a few days ago. Looks good so far, made the front end slightly stiffer when turning. Which is a good thing?
Bottom Line NULL
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I would buy these again.
I would buy these again.
Submitted 2019-04-15
By Randolph
From Undisclosed
These struts made a big difference in the ride and handling of a 2003 Grand Marquis. So far they are great.
Bottom Line NULL
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I would buy this product again and again.
I would buy this product again and again.
Submitted 2017-10-25
By Zak
From undisclosed
It works great on my 08 Grand Marquis. Huge improvement on handling and even braking is better. Tires were wearing out prematurely because of worn struts.
Bottom Line NULL
from $181.99
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2003 Grand Marquis Cooling & Heating Parts
Advance Auto customers often purchase these Cooling & Heating parts for their 2003 Mercury Grand Marquis. To see more, click View All below.
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Carquest Premium - Thermostat-195 Degrees (Part No. 13779)
DescriptionManufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable
Product Features:- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Read 3 review(s)Review snapshot ® by PowerReviews
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I would Recommend this Thermostat
I would Recommend this Thermostat
Submitted 2022-02-09
By Kevin Lightning
From Lincolnton, NC
AFTER installation, Warmed Up Just Fine and Regulated at Proper Temperature...
Bottom Line recommended
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Had exactly what I needed in stock.
Had exactly what I needed in stock.
Submitted 2021-12-06
By papaw
From tampa, fl
Very good. will buy from them again in the future.
Bottom Line recommended
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Worked as it should
Worked as it should
Submitted 2021-12-02
By Shaq
From New ellenton sc
Only thing I dislike about this is that it doesn't come with an o-ring
Bottom Line recommended
from $13.29
View Product -
Carquest Premium - New Premium Water Pump (Part No. T1238)
DescriptionThis premium water pump uses new high-quality components and is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub and housing are all designed for long-lasting service life. All necessary gaskets and seals are included.
Product Features:- All gaskets or seals necessary for installation are supplied with pump
- Durable housing features precisely machined mounting surfaces for proper sealing
- Equipped with weep chamber or similar feature to help prevent unnecessary replacement
- This pump is used on accessory belt driven applications
- Aluminum housing
Read 3 review(s)Review snapshot ® by PowerReviews
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Great parts great price
Great parts great price
Submitted 2022-01-26
By Kentucky boy
From Dayton ky
Easy to install and a great product
Bottom Line recommended
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Online order But store pickup good deal
Online order But store pickup good deal
Submitted 2021-09-18
By Todd
From Undisclosed
Part matched good price Order on line and apply discount
Bottom Line NULL
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The price is right
The price is right
Submitted 2020-11-23
By Robert
From Undisclosed
It's great the part was the exact fit
Bottom Line NULL
from $63.99
View Product -
Imperial - Adjustable Thermostatic Fan Control (Part No. 226203)
DescriptionAdjustable Thermostatic Fan Control; Economy Model; 32-248°F. Controls the operating temperature of Imperial electric fans
Product Features:- Economy adjustable thermostatic fan control
- Economy Model; 32-248°F
- For use with Imperial electric fans
- Probe installs into radiator fins
Read 3 review(s)Review snapshot ® by PowerReviews
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It works for what I needed
It works for what I needed
Submitted 2021-11-05
By Mike
From Kansas City
It was easy to install
Bottom Line recommended
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Fan Temp Control
Fan Temp Control
Submitted 2021-07-12
By David
From Undisclosed
I used this to add a temperature control function to an add-on cooling fan. It was simple to install, worked as advertised, and was a good value.
Bottom Line NULL
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Love it.hopefully lasts
Love it.hopefully lasts
Submitted 2020-12-04
By Evren
From Fl
Its working great simple hook up and great price.a hidden treasure
Bottom Line recommended
from $20.99
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2003 Mercury Grand Marquis Auto Parts and Accessories
