2003 Mercury Grand Marquis A/C and Heating Parts

    • Spectra Premium® - A/C Compressor
      Mercury Grand Marquis 2003, A/C Compressor by Spectra Premium®. With Clutch. Driven by a belt from the engine, the A/C compressor pumps refrigerant through the A/C system when the clutch is engaged. If testing proves that the compressor in your...
      Our price: $277.23$277.23
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    • Denso® - A/C Compressor
      Mercury Grand Marquis 2003, A/C Compressor by Denso®, 1 Piece. DENSO First Time Fit® A/C compressors are engineered to meet all manufacturer's standards and the company's own rigorous standards. DENSO compressors are so highly regarded that...
      Our price: $410.33$410.33
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    • Motorcraft® - A/C Compressor
      Mercury Grand Marquis 2003, A/C Compressor - New by Motorcraft®. With Clutch. If you need to replace your A/C compressor, this product is the way to go. Designed to strict Ford Motor Company specifications, the Motorcraft A/C compressor is...
      Our price: $477.28$477.28
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    • Replace® - A/C Condenser
      Mercury Grand Marquis 2003, A/C Condenser by Replace®. This is an aftermarket part that replaces factory OE # 3W1Z19712AA, 3W1H19710AA. The condenser is part of the A/C system. It receives the hot, high-pressure gaseous refrigerant from the...
      Our price: $91.19$91.19
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    • TYC® - A/C Condenser
      Mercury Grand Marquis 2003, A/C Condenser by TYC®. 29-3/4" x 18-1/8" x 7/8" Core Size, Block Fitting Inlet, Block Fitting Outlet, Serpentine. This is an aftermarket part that replaces factory OE # 3W1Z19712AA. When your condenser is leaking,...
      Our price: $81.75$81.75
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    • Spectra Premium® - A/C Condenser
      Mercury Grand Marquis 2003, A/C Condenser by Spectra Premium®. With this high-quality Spectra Premium A/C condenser, you can easily fix your vehicle properly and have money left in your pocket. It's designed to look and fit just like the original...
      Our price: $122.53$122.53
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    • APDI® - A/C Condenser
      Mercury Grand Marquis 2003, A/C Condenser by APDI®. The condenser is part of the A/C system. It receives the hot, high-pressure gaseous refrigerant from the compressor and cools it to a warm liquid state, although still under high pressure. The...
      Our price: $104.66$104.66
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    • Vista-Pro® - Ready-Aire™ A/C Condenser
      Mercury Grand Marquis 2003, Ready-Aire™ A/C Condenser by Vista-Pro®. The condenser line coverage is one of the most extensive in the aftermarket. With Ready-Aire® OE-quality condensers, you never have to guess what the proper charge level...
      Our price: $77.19$77.19
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    • Motorcraft® - HVAC Control Switch
      Mercury Grand Marquis 2003, HVAC Control Switch by Motorcraft®. If you need to replace a defective switch, Motorcraft has the right product for you. Designed specifically for your vehicle, Motorcraft switches meet all applicable Federal Motor...
      Our price: $20.69 - $32.84$20.69
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    • TYC® - Front A/C Evaporator Core
      Mercury Grand Marquis 2003, Front A/C Evaporator Core by TYC®. 10-9/16" x 8-1/8" x 3-9/16" Core Size, Diameter: 9/16" Inlet, 13/16" Outlet. This is an aftermarket part that replaces factory OE # 3W7Z19860AA. One of the heat exchangers in your A/C...
      Our price: $69.53$69.53
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    • Spectra Premium® - Evaporator Core
      Mercury Grand Marquis 2003, Evaporator Core by Spectra Premium®. Front. Enjoy all the benefits of your A/C system with this evaporator core designed to lower the air temperature inside the cabin providing you with the most comfortable temperature...
      Our price: $85.15$85.15
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    • Motorcraft® - A/C Evaporator Core
      Mercury Grand Marquis 2003, A/C Evaporator Core by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement parts...
      Our price: $197.84$197.84
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    • Spectra Premium® - A/C Accumulator
      Mercury Grand Marquis 2003, A/C Accumulator by Spectra Premium®. The accumulator protects the A/C system from moisture to prevent corrosion and the formation of sludge, both of which can destroy the system from the inside. To provide a precise...
      Our price: $27.40$27.40
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    • Motorcraft® - A/C Accumulator
      Mercury Grand Marquis 2003, A/C Accumulator by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement parts for...
      Our price: $94.65$94.65
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    • Motorcraft® - A/C Orifice Tube
      Mercury Grand Marquis 2003, A/C Orifice Tube by Motorcraft®. Orange. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement...
      Our price: $8.71$8.71
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    • Motorcraft® - A/C Vacuum Check Valve
      Mercury Grand Marquis 2003, A/C Vacuum Check Valve by Motorcraft®. Rectangle Shaped. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has...
      Our price: $16.67$16.67
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    • Motorcraft® - A/C Manifold Hose Assembly
      Mercury Grand Marquis 2003, A/C Manifold Hose Assembly by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement...
      Our price: $279.23$279.23
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    • Motorcraft® - A/C Line Spring Lock
      Mercury Grand Marquis 2003, A/C Line Spring Lock by Motorcraft®. 3/4" OD. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium...
      Our price: $10.08$10.08
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    • Motorcraft® - A/C Refrigerant Hose
      Mercury Grand Marquis 2003, A/C Refrigerant Hose by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement parts...
      Our price: $74.05 - $102.92$74.05
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    • Dorman® - Remanufactured Climate Control Module
      Mercury Grand Marquis 2003, Remanufactured Climate Control Module by Dorman®. Automatic Temperature Control. This is an aftermarket part that replaces factory OE # 3W7H18C612AC, 3W7Z19980AA, 6W7H19C933AA. Affordability, a proper fit, and optimal...
      Our price: $298.91$298.91
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    • Motorcraft® - HVAC Interior Temperature Sensor
      Mercury Grand Marquis 2003, HVAC Interior Temperature Sensor by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium...
      Our price: $18.66 - $26.11$18.66
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    • Replace® - Heater Core
      Mercury Grand Marquis 2003, Heater Core by Replace®. This is an aftermarket part that replaces factory OE #040876382558. The heater core is located in a case under the dash, and is connected into the engine cooling system. It is usually made of...
      Our price: $39.93$39.93
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    • TYC® - Front HVAC Heater Core
      Mercury Grand Marquis 2003, Front HVAC Heater Core by TYC®. This is an aftermarket part that replaces factory OE # YW7Z18476AA. If you don't want the cold winter to sneak inside your vehicle, a properly functioning heater core is a must. So as...
      Our price: $49.17$49.17
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    • Spectra Premium® - Heater Core
      Mercury Grand Marquis 2003, Heater Core by Spectra Premium®. With 6" Wide Core. If you’re not feeling much heat or your carpet is wet and you smell antifreeze, chances are you need a new heater core. If testing proves that your heater core is...
      Our price: $57.86$57.86
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    • Dayco® - Small I.D. Heater Hose
      Mercury Grand Marquis 2003, Small I.D. Heater Hose by Dayco®. This small diameter heater hose is manufactured with the knitted reinforcement and EPDM construction, which ensures exceptional durability and high resistance to temperature variations...
      Our price: $10.71 - $14.30$10.71
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    • Motorcraft® - HVAC Heater Core
      Mercury Grand Marquis 2003, HVAC Heater Core by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement parts for...
      Our price: $88.32$88.32
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    • APDI® - Heater Core
      Mercury Grand Marquis 2003, Heater Core by APDI®. With 6" Wide Core. The heater core is located in a case under the dash, and is connected into the engine cooling system. It is usually made of copper or aluminum and consists of tubes to carry the...
      Our price: $40.29$40.29
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    • Vista-Pro® - Ready-Aire™ Heater Core
      Mercury Grand Marquis 2003, Ready-Aire™ Heater Core by Vista-Pro®. 6" w x 7-3/4" H x 2" Th Core. Aluminium Heater Core. Advanced, high-strength alloys reduce premature failure, even in harsh, corrosive environments. The core tube has an...
      Our price: $42.27$42.27
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    • Goodyear® - Molded Heater Hoses
      Mercury Grand Marquis 2003, Molded Heater Hose by Goodyear®. This molded hose follows OE design and is pre-shaped for a precise fit. EPDM rubber tube and cover provide superior resistance to heat, ozone, and chemical coolants, while synthetic...
      Our price: $6.12 - $16.57$6.12
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    • Dorman® - Blower Motor Resistor
      Mercury Grand Marquis 2003, Blower Motor Resistor by Dorman®. Dorman’s Blower Motor Resistor promptly returns your vehicle’s heating and cooling system to its original peak performance. The long-lasting design resists thermal fuse failure,...
      Our price: $11.32 - $54.92$11.32
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    • Dorman® - A/C Orifice Tube
      Mercury Grand Marquis 2003, Orange Inlet Frame Color A/C Orifice Tube by Dorman®. Use 1 Per Car. Package Type: Box. Inside Diameter: 0.0560" to 0.0590". This is an aftermarket part that replaces factory OE # F5DZ19D990AB. Dorman offers products...
      Our price: $5.76$5.76
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    • Dorman® - Air Conditioning Repair Kit Tool Jaws
      Universal Air Conditioning Repair Kit Tool Jaws by Dorman®. 2 Pieces in Box. Material: Steel, Finish: Black. Set off by its innovative design, Dorman’s A/C Repair Tool is the one and only tool needed for pressing together and crimping different...
      Our price: $28.72 - $31.40$28.72
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    • Dorman® - A/C Compressor Connector
      Mercury Grand Marquis 2003, A/C Compressor Connector by Dorman®. This is an aftermarket part that replaces factory OE # 1U2Z14S411BPA. Dorman offers a comprehensive line of A/C Compressor Connectors for a wide range of applications. All Dorman...
      Our price: $23.81$23.81
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    • Standard® - Tru-Tech™ A/C Compressor Control Relay
      Mercury Grand Marquis 2003, Tru-Tech™ A/C Compressor Control Relay by Standard®, Use 1 per Car. 30 Amp. Type Connection: Multi-Function Relay, Male. No Continuous Duty. Includes: Relay. Without Mounting Bracket. Black. 12 Volt. Rectangle....
      Our price: $9.88$9.88
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    • Motorcraft® - A/C Compressor Clutch Coil
      Mercury Grand Marquis 2003, A/C Compressor Clutch Coil by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement...
      Our price: $84.72$84.72
      20% OFF
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    • Motorcraft® - A/C Compressor Clutch Hub
      Mercury Grand Marquis 2003, A/C Compressor Clutch Hub by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement...
      Our price: $78.44$78.44
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    • Motorcraft® - A/C Compressor Clutch Pulley
      Mercury Grand Marquis 2003, A/C Compressor Clutch Pulley by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium...
      Our price: $102.27$102.27
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    • TYC® - Front A/C Condenser Blower
      Mercury Grand Marquis 2003, Front A/C Condenser Blower by TYC®. This is an aftermarket part that replaces factory OE # 4W7Z19805AA. When your condenser is leaking, restricted, or otherwise damaged, you know you need to get a new one right away....
      Our price: $44.70$44.70
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    • Flex-a-lite® - Mojave Heater
      Universal Mojave Heater by Flex-a-lite®. Update your vehicle with this lightweight yet powerful unit. The heater is designed to simplify the task of providing heat and comfort in your vehicle, whether it’s a hot rod, off-road, or utility...
      Our price: $239.95$239.95
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    • Maradyne® - The Heat 5000 Heater
      Universal The Heat 5000 Heater by Maradyne®, 12V, 13000 BTU / hr. Why shiver? It’s a long way from the driver’s seat of that 11-passenger van to that 11th seat, and by the time the heat gets back there, it’s practically spring. Add this...
      Our price: $164.16$164.16
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    • Maradyne® - Stoker™ Heater
      Universal Stoker™ Heater by Maradyne®, 12V, 26,000 BTU / hr. Why shiver? It’s a long way from the driver’s seat of that 11-passenger van to that 11th seat, and by the time the heat gets back there, its spring. Add this 26,000 BTU auxiliary...
      Our price: $164.16$164.16
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    • Denso® - A/C Orifice Tube
      Mercury Grand Marquis 2003, A/C Orifice Tube by Denso®, 1 Piece. With decades of expertise engineering A/C components and systems for the world's automakers, you may rest assured: DENSO can supply the correct expansion device for your vehicle....
      Our price: $1.75$1.75
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    • Motorcraft® - A/C Service Valve
      Mercury Grand Marquis 2003, A/C Service Valve by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement parts...
      Our price: $8.47 - $21.64$8.47
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    • Metrix® - A/C Orifice Tube
      Mercury Grand Marquis 2003, A/C Orifice Tube by Metrix®. Are you shivering behind the wheel in the winter, or sweating in traffic in the summer? Do you detect the sweet smell of antifreeze in the cabin or see green liquid on the floor? Your...
      Our price: $1.10$1.10
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    • Santech® - A/C O-Ring Kit
      Mercury Grand Marquis 2003, A/C O-Ring Kit by Santech®. Are you shivering behind the wheel in the winter, or sweating in traffic in the summer? Do you detect the sweet smell of antifreeze in the cabin or see green liquid on the floor? Your...
      Our price: $19.08$19.08
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    • Motocraft® - A/C & Heater Connector
      Mercury Grand Marquis 2003, A/C & Heater Connector by Motocraft®. This product is perfect for electrical repairs on Ford, Lincoln, and Mercury vehicles. Designed and engineered to strict Ford Motor Company specifications, Motorcraft electrical...
      Our price: $23.46 - $45.40$23.46
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    • Motorcraft® - HVAC Blower Motor Resistor
      Mercury Grand Marquis 2003, HVAC Blower Motor Resistor by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement...
      Our price: $95.10$95.10
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    • Motorcraft® - HVAC Mode Door Actuator
      Mercury Grand Marquis 2003, HVAC Mode Door Actuator by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement...
      Our price: $16.87 - $74.54$16.87
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    • Motorcraft® - Hose Clamp
      Mercury Grand Marquis 2003, Hose Clamp - Worm Type by Motorcraft®. Range 1/4'' to 5/8''. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has...
      Our price: $14.81$14.81
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    • Motorcraft® - A/C Compressor Clutch Shim
      Mercury Grand Marquis 2003, A/C Compressor Clutch Shim by Motorcraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement...
      Our price: $24.29$24.29
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    • Motocraft® - A/C Clutch Cycle Switch
      Mercury Grand Marquis 2003, A/C Clutch Cycle Switch by Motocraft®. Are you shivering behind the wheel in the winter or sweating in traffic in the summer? Then your A/C and heating systems require repair, and Motorcraft has premium replacement...
      Our price: $27.01 - $96.28$27.01
      20% OFF
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    • Dorman® - A/C Service Port Connectors
      Universal A/C Service Port Connectors by Dorman®. 1 Piece in Box. Fitting Angle: Straight, Fitting Attachment End1 and End1: Compression, Material: Aluminum, Quick Connect System: Yes. Remarkably durable against corrosion and rust, Dorman’s Air...
      Our price: $9.90 - $11.23$9.90
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    • Dorman® - Rigid Aluminum Tube
      Universal Rigid Aluminum Tube by Dorman®. Dorman’s resilient aluminum tubing is the ideal in countering corrosion, rust, and warping. For use in the air conditioning system or anywhere else tubing has eroded.
      Our price: $7.44 - $16.85$7.44
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    • Dorman® - Flexible Aluminum-Rubber Tubing
      Universal Flexible Aluminum-Rubber Tubing by Dorman®. 2 Pieces in Box. Type: Flexible, Material: Aluminum and Rubber, Galvanized: No. Dorman’s resilient aluminum tubing is the ideal in countering corrosion, rust, and warping. For use in the air...
      Our price: $28.16 - $32.72$28.16
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    • Dorman® - Plastic Heater Hose Connectors
      Plastic Heater Hose Connectors by Dorman®. Dorman’s HVAC Heater Hose Connector resists brittleness, cracking, and leaking. Made of high-quality plastic, it weathers extreme temperatures from the engines coolant.
      Our price: $2.26 - $11.45$2.26
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    • Dorman® - Steel Heater Hose Fittings
      Universal Steel Heater Hose Fittings by Dorman®. Dorman’s HVAC Heater Hose Connector resists brittleness, cracking, and leaking. Made of high-quality steel, it weathers extreme temperatures from the engines coolant.
      Our price: $1.66 - $9.96$1.66
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    • Dorman® - A/C Repair Kit Tool Body
      Universal A/C Repair Kit Tool Body by Dorman®. Set off by its innovative design, Dorman’s A/C Repair Tool is the one and only tool needed for pressing together and crimping different A/C line connectors. Quickly hone in on the area that needs...
      Our price: $31.84$31.84
      20% OFF
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    • Dorman® - Bypass Caps
      Universal Bypass Caps by Dorman®. Material: Rubber, Color: Black. Dorman offers a comprehensive line of Bypass Caps for almost any automotive repair job. All the Bypass Caps are constructed of high-quality materials for long-lasting durability.
      Our price: $3.10 - $7.08$3.10
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    • Dorman® - A/C Line Repair Kit
      Universal A/C Line Repair Kit by Dorman®. 137 Pieces in Tray. This kit features new style compression fittings for fast, easy and leak free A/C line repairs. Compact installer tool design allows under hood and other restricted space repairs. Set...
      Our price: $372.91$372.91
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    • Dorman® - Heater Hose Assembly
      Mercury Grand Marquis 2003, Heater Hose Assembly by Dorman®, 1 Piece. This is an aftermarket part that replaces factory OE # 3W7Z18663BA / 9W7Z18663A. Durably engineered to resist corrosion and leakage, Dorman’s HVAC Heater Hose limits the...
      Our price: $32.36$32.36
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