2003 Ford Thunderbird Engine Cooling Hoses
Keep Your 2003 Ford Thunderbird in Top Shape with a Quality Engine Cooling Hose
When it comes to maintaining or upgrading your 2003 Ford Thunderbird, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Engine Cooling Hose for your Thunderbird. We currently carry a top Engine Cooling Hose in stock that is built to last. Whether you’re replacing a damaged Engine Cooling Hose or looking to upgrade, our selection for the 2003 Ford Thunderbird ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.
Explore Related Parts
And while you’re here, don’t forget to check out related part categories like Belt Tensioners and Pulleys to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2003 Ford Thunderbird running smoothly and looking great.
Find Your Specific 2003 Ford Thunderbird Engine Cooling Hoses
Looking for the perfect Engine Cooling Hose for your 2003 Ford Thunderbird? You’re in the right place. Below, you’ll find a Engine Cooling Hose from a trusted manufacturer that is a perfect fit for your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Cooling Hoses, ensuring durability and a precise fit for your Ford Thunderbird. Whether you’re driving a 2003 model or another popular model year like
1990,
1991,
1992,
1993,
1994,
1995,
1996,
1997, and
2002, we’ve got you covered. Purchasing Engine Cooling Hoses from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Cooling Hoses that fit your vehicle.
Essential 2003 Ford Thunderbird Engine Cooling Hoses
Gates – Premium Molded Coolant Hose (Part No.20470)
from
$32.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.
Product Features:
See More
Product Features:
- Specifically-engineered materials resist collapse under vacuum
- Engineered to resist electrochemical degradation, the leading cause of hose failure
- Pre-formed for a good fit and to ensure perfectly sealed connections
- EPDM tube; synthetic fiber knit reinforcement; heat-, ozone- and chemical coolant-resistant EPDM cover
- Compliant with the requirements of SAE 20R4, class D2 and DIN 73411, class A standards (except with regard to tolerances)
- Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Note: Gates recommends replacing hose clamps each time a new coolant hose is installed
- Caution: Do not use for fuel or oil transport applications.
Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 11" Long, 2" Diameter (Part No.B70212)
from
$22.79
The Dayco curved radiator hose features knitted reinforcement, a protective sleeve and a synthetic EPDM rubber construction for high-strength performance, protection against abrasion and resistance to oil, mud, salt, road debris, ozone and coolants. It can also withstand temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose.
Product Features:
See More
Product Features:
- Meets SAE J20R4, Class D-1 requirements
- Meets Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
- Provides excellent protection against external elements
Gates – Green Stripe Heavy-Duty Vulco-Flex Coolant Hose (Part No.26603)
from
$22.49
Heavy-duty flexible hose designed to replace straight or curved coolant hoses. The benefit is maximum coverage with minimum inventory. Hose inside diameter remains constant from end to end. No convolutions inside hose so tube is smooth, allowing free coolant flow. Approved for marine applications.
Product Features:
See More
Product Features:
- Designed to resist electrochemical degradation, the main cause of pipe failure
- Built-in steel spiral wire allows for medium sized curves without kinking or collapsing
- EPDM tube and neoprene lid for extended lifespan
- Polyester fabric-ply reinforcement vulcanizes into shape without unnecessary strain on connections
- Resistant to heat, oil and ozone
- Compliant with SAE 20R5 Type EC Class D-2 specifications
- Temperature range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Caution: Do not use for fuel or oil transfer applications
- Caution: Do not use for fuel or oil transfer applications.
Gates – Premium Modular Coolant Hose (Part No.22796)
from
$201.99
Modular coolant hoses are on many of today’s vehicles and are much more complex than the standard molded hoses of the past. Modular coolant hoses are hose assemblies with one or more components built into the hose. Some examples of these components include hose branches, quick connectors, valves, sensors, bleeders and flow restrictors. Manufactured identical or equivalent to the OE hose, modular coolant hoses will keep your vehicle’s cooling system running properly and efficiently for years to come.
Product Features:
See More
Product Features:
- Materials specifically designed to resist collapse under vacuum
- Designed to resist electrochemical degradation, the main cause of casing failure
- EPDM tube; synthetic fiber knit reinforcement, EPDM cover resistant to heat, ozone and chemical refrigerants.
- Manufactured with hose components conforming to OEM standards (quick couplings, branch fittings, sensors, etc.)
- Compliant with SAE 20R3 EC Class D1 for sizes less than 25 mm (1 in.) ID, and SAE 20R4 EC Class D1 for sizes 25 mm (1 in.) ID and above
- Temperature range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Note: Gates recommends replacing clamps and connectors every time a new cooling hose is installed.
- Caution: Do not use for fuel or oil transport applications.
Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 12.50" Long, 1.75" Diameter (Part No.C70448)
from
$16.49
The Dayco curved radiator hose features knitted reinforcement, a protective sleeve and a synthetic EPDM rubber construction for high-strength performance, protection against abrasion and resistance to oil, mud, salt, road debris, ozone and coolants. It can also withstand temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose.
Product Features:
See More
Product Features:
- Meets SAE J20R4, Class D-1 requirements
- Meets Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
- Provides excellent protection against external elements
Dayco – Flex Radiator Hoses; EPDM Rubber, 22 Inch Long, 1.75 Inch to 1.5 Inch Inner Dia. (Part No.81271)
from
$41.99
The Dayco flex radiator hose replaces straight or molded radiator hoses on a wide range of engine applications. Precision molded in standard lengths, it features a knitted reinforcement and synthetic EPDM construction. This hose is designed to prevent splitting, ballooning and elongation as well as resist ozone and other detrimental environmental elements, coolants and temperature variations of -40øF (-40øC) to +257øF (+125øC). With corrugations that provide excellent hose flexibility without flattening or collapsing, the Dayco flex radiator hose also features a helical steel coil spring for increased flexibility.
Product Features:
See More
Product Features:
- Designed to meet OE specifications
- Not suitable for oil or heat transfer
- Meets SAE J20R4, Class D-2 requirements for improved service hoses
- This hose is designed to prevent splitting, ballooning, and elongation
Gates – Premium Molded Coolant Hose (Part No.20841)
from
$18.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.
Product Features:
See More
Product Features:
- The specially designed materials resist collapse under vacuum.
- Designed to resist electrochemical degradation, which is the primary cause of hose failure
- Pre-formed for a good fit and to ensure perfectly sealed connections
- EPDM tube; synthetic fiber knit reinforcement; EPDM cover resistant to heat, ozone, and chemical refrigerants
- It meets the requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances)
- Temperature range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Note: Gates recommends replacing the clamps and connectors each time a new radiator hose is installed.
- Caution: Do not use for fuel or oil transport applications.
Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 17" Long, 1.50" Diameter (Part No.D70557)
from
$15.99
The Dayco curved radiator hose features knitted reinforcement, a protective sleeve and a synthetic EPDM rubber construction for high-strength performance, protection against abrasion and resistance to oil, mud, salt, road debris, ozone and coolants. It can also withstand temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose.
Product Features:
See More
Product Features:
- Meets SAE J20R4, Class D-1 requirements
- Meets Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
- Provides excellent protection against external elements
Dayco – Flex Radiator Hoses; EPDM Rubber, 15.75 Inch Long, 1.5 Inch Inner Dia. (Part No.81161)
from
$26.99
The Dayco flex radiator hose replaces straight or molded radiator hoses on a wide range of engine applications. Precision molded in standard lengths, it features a knitted reinforcement and synthetic EPDM construction. This hose is designed to prevent splitting, ballooning and elongation as well as resist ozone and other detrimental environmental elements, coolants and temperature variations of -40øF (-40øC) to +257øF (+125øC). With corrugations that provide excellent hose flexibility without flattening or collapsing, the Dayco flex radiator hose also features a helical steel coil spring for increased flexibility.
Product Features:
See More
Product Features:
- Designed to meet OE specifications
- Not suitable for oil or heat transfer
- Meets SAE J20R4, Class D-2 requirements for improved service hoses
- This hose is designed to prevent splitting, ballooning, and elongation
Gates – Vulco-Flex II Flexible Coolant Hose (Part No.25532)
from
$29.99
Gates Vulco-Flex(R) II hose will bend in almost any direction. It easily replicates the angles and planes of a wide variety of expensive original equipment coolant hose, for quick, easy replacement.
Product Features:
See More
Product Features:
- Improved sealing surface for greater leak resistance
- High flexibility for easy installation
- Maximum vehicle coverage with a minimum inventory
- Resistant to heat, oil and ozone
- Rated for SAE 20R5 Class D-2 performance
- Temperature Range: up to +257 Deg. F (+125 Deg. C)
- Note: Gates recommends replacing clamps and connectors every time a new cooling hose is installed.
- Caution: Do not use for fuel or oil transport applications.
Gates – Vulco-Flex II Flexible Coolant Hose (Part No.25528)
from
$31.99
Gates Vulco-Flex(R) II hose will bend in almost any direction. It easily replicates the angles and planes of a wide variety of expensive original equipment coolant hose, for quick, easy replacement.
Product Features:
See More
Product Features:
- Improved sealing surface for better leak resistance
- Their high flexibility makes installation easier
- Maximum vehicle coverage with a minimum inventory
- Resistant to heat, oil and ozone
- Rated for SAE 20R5 Class D-2 performance
- Temperature Range: up to +257 Deg. F (+125 Deg. C)
- Note: Gates recommends replacing clamps and connectors every time a new cooling hose is installed.
- Caution: Do not use for fuel or oil transfer applications
Gates – Premium Molded Coolant Hose (Part No.21160)
from
$39.49
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.
Product Features:
See More
Product Features:
- Specifically-engineered materials resist collapse under vacuum
- Designed to resist electrochemical degradation, which is the primary cause of hose failure
- Pre-formed for a good fit and to ensure perfectly sealed connections
- EPDM tube; reinforced with knitted synthetic fibers; EPDM lid resistant to heat, ozone, and chemical refrigerants
- Meets requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances)
- Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Note: Gates recommends replacing the clamps and connectors each time a new radiator hose is installed.
- Warning: Do not use for fuel or oil transfer applications
Gates – Premium Molded Coolant Hose (Part No.21589)
from
$26.49
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.
Product Features:
See More
Product Features:
- The specially designed materials resist collapse under vacuum.
- Engineered to resist electrochemical degradation, the leading cause of hose failure
- Pre-formed for a good fit and to ensure perfectly sealed connections
- EPDM tube; reinforced with knitted synthetic fibers; EPDM lid resistant to heat, ozone, and chemical refrigerants
- It meets the requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances)
- Temperature range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Note: Gates recommends replacing hose clamps each time a new coolant hose is installed
- Warning: Do not use for fuel or oil transfer applications
Gates – Vulco-Flex II Flexible Coolant Hose (Part No.25311)
from
$58.99
Gates Vulco-Flex(R) II hose will bend in almost any direction. It easily replicates the angles and planes of a wide variety of expensive original equipment coolant hose, for quick, easy replacement.
Product Features:
See More
Product Features:
- Improved sealing surface for better leak resistance
- Their high flexibility makes installation easier
- Maximum vehicle coverage with a minimum inventory
- Resistant to heat, oil and ozone
- Rated for SAE 20R5 Class D-2 performance
- Temperature range: up to +257 Degrees F (+125 Degrees C)
- Note: Gates recommends replacing the clamps and connectors each time a new radiator hose is installed.
- Caution: Do not use for fuel or oil transport applications.
Dayco – Flex Radiator Hoses; EPDM Rubber, 1 Inch Long, 1.75 Inch Inner Dia. (Part No.81301)
from
$18.79
The Dayco flex radiator hose replaces straight or molded radiator hoses on a wide range of engine applications. Precision molded in standard lengths, it features a knitted reinforcement and synthetic EPDM construction. This hose is designed to prevent splitting, ballooning and elongation as well as resist ozone and other detrimental environmental elements, coolants and temperature variations of -40øF (-40øC) to +257øF (+125øC). With corrugations that provide excellent hose flexibility without flattening or collapsing, the Dayco flex radiator hose also features a helical steel coil spring for increased flexibility.
Product Features:
See More
Product Features:
- Designed to meet OE specifications
- Not suitable for oil or heat transfer
- Meets SAE J20R4, Class D-2 requirements for improved service hoses
- This hose is designed to prevent splitting, ballooning, and elongation
Gates – Vulco-Flex II Flexible Coolant Hose (Part No.25530)
from
$41.99
Gates Vulco-Flex(R) II hose will bend in almost any direction. It easily replicates the angles and planes of a wide variety of expensive original equipment coolant hose, for quick, easy replacement.
Product Features:
See More
Product Features:
- Improved sealing surface for greater leak resistance
- High flexibility for easy installation
- Maximum vehicle coverage with minimal inventory
- Resistant to heat, oil and ozone
- Rated for SAE 20R5 Class D-2 performance
- Temperature range: up to +257 Degrees F (+125 Degrees C)
- Note: Gates recommends replacing clamps each time a new coolant hose is installed
- Caution: Do not use for fuel or oil transport applications.
Gates – Vulco-Flex II Flexible Coolant Hose (Part No.25257)
from
$27.99
Gates Vulco-Flex(R) II hose will bend in almost any direction. It easily replicates the angles and planes of a wide variety of expensive original equipment coolant hose, for quick, easy replacement.
Product Features:
See More
Product Features:
- Improved sealing surface for greater leak resistance
- Their high flexibility makes installation easier
- Maximum vehicle coverage with minimal inventory
- Resistant to heat, oil and ozone
- Rated for SAE 20R5 Class D-2 performance
- Temperature range: up to +257 degrees Celsius. F (+125 Deg. C)
- Note: Gates recommends replacing clamps and connectors every time a new cooling hose is installed.
- Caution: Do not use for fuel or oil transfer applications
Gates – Premium Molded Coolant Hose (Part No.20763)
from
$31.49
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.
Product Features:
See More
Product Features:
- Materials specifically designed to resist collapse under vacuum
- Designed to resist electrochemical degradation, the main cause of casing failure
- Pre-shaped to fit and to ensure perfectly sealed conditions
- EPDM tube; synthetic fiber knit reinforcement; heat-, ozone- and chemical coolant-resistant EPDM cover
- Compliant with the requirements of SAE 20R4, class D2 and DIN 73411, class A standards (except with regard to tolerances)
- temperature range Deg. F to +257 degrees F (-40 degrees C to +125 degrees C)
- Note: Gates recommends replacing the clamps and connectors each time a new radiator hose is installed.
- Caution: Do not use for fuel or oil transport applications.
Dayco – Flex Radiator Hoses; EPDM Rubber, 19.5 In. Long, 1.5 In. to 1.25 In. Inner Dia. (Part No.81091)
from
$27.99
The Dayco flex radiator hose replaces straight or molded radiator hoses on a wide range of engine applications. Precision molded in standard lengths, it features a knitted reinforcement and synthetic EPDM construction. This hose is designed to prevent splitting, ballooning and elongation as well as resist ozone and other detrimental environmental elements, coolants and temperature variations of -40øF (-40øC) to +257øF (+125øC). With corrugations that provide excellent hose flexibility without flattening or collapsing, the Dayco flex radiator hose also features a helical steel coil spring for increased flexibility.
Product Features:
See More
Product Features:
- Designed to meet OE specifications
- Not suitable for oil or heat transfer
- Meets SAE J20R4, Class D-2 requirements for improved service hoses
- This hose is designed to prevent splitting, ballooning, and elongation
Dayco – Flex Radiator Hoses; EPDM Rubber, 22 Inch Long, 1.5 Inch Inner Dia. (Part No.81191)
from
$15.99
The Dayco flex radiator hose replaces straight or molded radiator hoses on a wide range of engine applications. Precision molded in standard lengths, it features a knitted reinforcement and synthetic EPDM construction. This hose is designed to prevent splitting, ballooning and elongation as well as resist ozone and other detrimental environmental elements, coolants and temperature variations of -40øF (-40øC) to +257øF (+125øC). With corrugations that provide excellent hose flexibility without flattening or collapsing, the Dayco flex radiator hose also features a helical steel coil spring for increased flexibility.
Product Features:
See More
Product Features:
- Designed to meet OE specifications
- Not suitable for oil or heat transfer
- Meets SAE J20R4, Class D-2 requirements for improved service hoses
- This hose is designed to prevent splitting, ballooning, and elongation
Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 14" Long, 1.75" Diameter (Part No.C70447)
from
$16.99
The Dayco curved radiator hose features knitted reinforcement, a protective sleeve and a synthetic EPDM rubber construction for high-strength performance, protection against abrasion and resistance to oil, mud, salt, road debris, ozone and coolants. It can also withstand temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose.
Product Features:
See More
Product Features:
- Meets SAE J20R4, Class D-1 requirements
- Meets Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
- Provides excellent protection against external elements
Gates – Green Stripe Heavy-Duty Vulco-Flex Coolant Hose (Part No.26508)
from
$43.99
Heavy-duty flexible hose designed to replace straight or curved coolant hoses. The benefit is maximum coverage with minimum inventory. Hose inside diameter remains constant from end to end. No convolutions inside hose so tube is smooth, allowing free coolant flow. Approved for marine applications.
Product Features:
See More
Product Features:
- Designed to resist electrochemical degradation, the main cause of pipe failure
- The built-in spiral steel wire allows for medium-sized curves without creases or folds.
- EPDM tube and neoprene cover for longer lifespan
- The polyester fabric reinforcement vulcanizes without unnecessary deformation at the connections.
- Resistant to heat, oil and ozone
- Performs to SAE 20R5 Type EC Class D-2 specifications
- temperature range Deg. F to +257 degrees F (-40 degrees C to +125 degrees C)
- Caution: Do not use for fuel or oil transfer applications
- Caution: Do not use for fuel or oil transfer applications.
Gates – Premium Molded Coolant Hose (Part No.21298)
from
$49.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.
Product Features:
See More
Product Features:
- The specially designed materials resist collapse under vacuum.
- Engineered to resist electrochemical degradation, the leading cause of hose failure
- Pre-shaped to fit and ensure a perfect seal
- EPDM tube; synthetic fiber knit reinforcement; EPDM cover resistant to heat, ozone, and chemical refrigerants
- It meets the requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances)
- Temperature range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Note: Gates recommends replacing hose clamps each time a new coolant hose is installed
- Caution: Do not use for fuel or oil transport applications.
Popular 2003 Ford Thunderbird Engine Cooling Hoses Categories
Most Popular Lower Radiator Hose for 2003 Ford Thunderbirds
Enhance your 2003 Ford Thunderbird with this popular Lower Radiator Hose we have in stock, for $201.99.
Gates – Premium Modular Coolant Hose (Part No.22796)
from
$201.99
Modular coolant hoses are on many of today’s vehicles and are much more complex than the standard molded hoses of the past. Modular coolant hoses are hose assemblies with one or more components built into the hose. Some examples of these components include hose branches, quick connectors, valves, sensors, bleeders and flow restrictors. Manufactured identical or equivalent to the OE hose, modular coolant hoses will keep your vehicle’s cooling system running properly and efficiently for years to come.
Product Features:
See More
Product Features:
- Materials specifically designed to resist collapse under vacuum
- Designed to resist electrochemical degradation, the main cause of casing failure
- EPDM tube; synthetic fiber knit reinforcement, EPDM cover resistant to heat, ozone and chemical refrigerants.
- Manufactured with hose components conforming to OEM standards (quick couplings, branch fittings, sensors, etc.)
- Compliant with SAE 20R3 EC Class D1 for sizes less than 25 mm (1 in.) ID, and SAE 20R4 EC Class D1 for sizes 25 mm (1 in.) ID and above
- Temperature range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Note: Gates recommends replacing clamps and connectors every time a new cooling hose is installed.
- Caution: Do not use for fuel or oil transport applications.
FAQs for 2003 Ford Thunderbird Engine Cooling Hoses
What’s the price range for 2003 Ford Thunderbird Engine Cooling Hoses?
We currently have just one Engine Cooling Hoses for the 2003 Ford Thunderbird in stock: Premium Modular Coolant Hose and it costs $201.99.
Does Advance Auto Parts sell Engine Cooling Hoses for other Ford Thunderbird model years?
Does Advance Auto Parts sell Engine Cooling Hoses for any other 2003 Ford models?
Yes. We stock Engine Cooling Hoses for 21 other popular 2003 Ford models. Some of the most popular are 2003 F-150 Engine Cooling Hoses, 2003 Mustang Engine Cooling Hoses, 2003 E-250 Econoline Engine Cooling Hoses, 2003 Explorer Engine Cooling Hoses, and 2003 F-250 Super Duty Engine Cooling Hoses.
What types of Engine Cooling Hoses do you sell for my 2003 Ford Thunderbird?
We currently have just 1 Engine Cooling Hose in stock for a 2003 Ford Thunderbird, and as of 3/1/26, it is a Lower Radiator Hose.
Can I get help with 2003 Ford Thunderbird Engine Cooling Hose orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Ford Engine Cooling Hoses and more.
What is your return policy for Ford Thunderbird Engine Cooling Hoses?
Advance Auto Parts keeps returns simple. For new Ford Thunderbird Engine Cooling Hoses and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.