2021 Audi A4 Quattro Engine Parts

Essential Engine Parts for 2021 Audi A4 Quattros

Rein – Oil Drain Plug (Part No.HWP0043)

Oil Drain Plug

from

$14.99
Rein Automotive OE quality oil drain plugs are made with premium materials and designed and manufactured to be direct-fit replacements. Rein oil drain plugs are designed to tight tolerances to ensure proper sealing.

Product Features:
  • Designed to tight tolerances to ensure proper sealing.
  • Made using high quality materials.
  • Designed and constructed to strict engineering quality standards
  • Includes Rubber O-ring.
See More

Dorman – Variable Valve Timing Solenoid (Part No.917-271)

Variable Valve Timing Solenoid

from

$175.99
This replacement engine variable valve timing (VVT) solenoid is precision-engineered to match the fit and function of the original VVT solenoid. Made of quality materials for a long service life, it has been tested for proper performance.

Product Features:
  • Ideal replacement – this VVT solenoid is professionally engineered to match the function and performance of the stock part on specific vehicle applications
  • Durable construction – this part is made from quality materials to ensure a long service life
  • Excellent value – the VVT solenoid is built to perform like original equipment quality at a competitive price
  • Vehicle tested – has undergone on-vehicle testing to ensure proper fit and performance
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Carquest Premium – Engine Variable Valve Timing (VVT) Solenoid (Part No.VVA1308)

Engine Variable Valve Timing (VVT) Solenoid

from

$148.99
The variable valve timing (VVT) system allows the engine control module (ECM) to regulate the intake and exhaust valve phase angle providing the most optimal engine volumetric efficiency under all engine operating condition to control tailpipe emissions and engine efficiency. Variable valve timing is an emission control device and although there are various methods of operation, the typical device is regulated by oil control valves, actuator solenoids and camshaft phasers.

Product Features:
  • Precision-wound coated copper windings increase product durability and life cycle.
  • Hard-coated and anodized spool valve to prevent corrosion and increase service life.
  • Threaded mounting bolt, hardware, and/or gaskets where applicable for easy installation.
  • Thermoplastic that is resistant to high temperatures, moisture, and chemicals.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure product reliability, every time.
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
See More

NTK – Engine Variable Valve Timing (VVT) Solenoid (Part No.VV0061)

Engine Variable Valve Timing (VVT) Solenoid

from

$144.99
Building upon a foundation of premium full-line products established under NGK ignition and oxygen sensor products, NTK’s expansion to technical sensors is part of our ongoing commitment to streamline product types and increase coverage under one premium brand NTK, The Sensor Specialist. With over 80 years of automotive expertise, NGK’s family of automotive products are driven by extreme dedication to innovation, performance and quality. is the only OE supplier with a full line of technical sensors in the aftermarket for import and domestic vehicles. Drawing from OE experience, sensors undergo extreme testing conditions that include thermal shock, vibration and OBD verification. sensors are manufactured to ensure a quality that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • NTK’s Variable Valve Timing Solenoids are manufactured to meet and/or exceed OE fit, form and function to ensure proper VVT operation.
  • The VVT solenoids meets the demands of today’s VVT engines at both low and high RPMs.
  • The VVT solenoids include a hard-coat anodized spool valve to prevent corrosion and increase service life.
  • The VVT solenoids include precision-wound, coated-copper windings to increase solenoid longevity.
  • The VVT solenoids are manufactured with a high strength thermoplastic that is resistant to temperature, moisture, and chemicals.
  • The VVT Solenoids are manufactured to precise OE valve body dimensions and utilizes fluorocarbon O-rings to help prevent oil leakage.
  • The VVT Solenoids are 100% tested and inspected to ensure consistent quality with end of production tested in oil to be sure the valve is primed and will work properly upon installation.
See More

Carquest Premium – Engine Variable Valve Timing (VVT) Solenoid (Part No.VVA1071)

Engine Variable Valve Timing (VVT) Solenoid

from

$174.99
The variable valve timing (VVT) system allows the engine control module (ECM) to regulate the intake and exhaust valve phase angle providing the most optimal engine volumetric efficiency under all engine operating condition to control tailpipe emissions and engine efficiency. Variable valve timing is an emission control device and although there are various methods of operation, the typical device is regulated by oil control valves, actuator solenoids and camshaft phasers.

Product Features:
  • Precision-wound coated copper windings increase product durability and life cycle.
  • Hard-coated and anodized spool valve to prevent corrosion and increase service life.
  • Threaded mounting bolt, hardware, and/or gaskets where applicable for easy installation.
  • Thermoplastic that is resistant to high temperatures, moisture, and chemicals.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure product reliability, every time.
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
See More

Dorman – Variable Valve Timing Solenoid (Part No.916-878)

Variable Valve Timing Solenoid

from

$784.99
This replacement engine variable valve timing (VVT) solenoid is precision-engineered to match the fit and function of the original VVT solenoid. Made of quality materials for a long service life, it has been tested for proper performance.

Product Features:
  • Ideal replacement – this VVT solenoid is professionally engineered to match the function and performance of the stock part on specific vehicle applications
  • Durable construction – this part is made from quality materials to ensure a long service life
  • Excellent value – the VVT solenoid is built to perform like original equipment quality at a competitive price
  • Vehicle tested – has undergone on-vehicle testing to ensure proper fit and performance
See More

NTK – Engine Variable Valve Timing (VVT) Solenoid (Part No.VV0059)

Engine Variable Valve Timing (VVT) Solenoid

from

$224.99
Building upon a foundation of premium full-line products established under NGK ignition and oxygen sensor products, NTK’s expansion to technical sensors is part of our ongoing commitment to streamline product types and increase coverage under one premium brand NTK, The Sensor Specialist. With over 80 years of automotive expertise, NGK’s family of automotive products are driven by extreme dedication to innovation, performance and quality. is the only OE supplier with a full line of technical sensors in the aftermarket for import and domestic vehicles. Drawing from OE experience, sensors undergo extreme testing conditions that include thermal shock, vibration and OBD verification. sensors are manufactured to ensure a quality that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • NTK’s Variable Valve Timing Solenoids are manufactured to meet and/or exceed OE fit, form and function to ensure proper VVT operation.
  • The VVT solenoids meets the demands of today’s VVT engines at both low and high RPMs.
  • The VVT solenoids include a hard-coat anodized spool valve to prevent corrosion and increase service life.
  • The VVT solenoids include precision-wound, coated-copper windings to increase solenoid longevity.
  • The VVT solenoids are manufactured with a high strength thermoplastic that is resistant to temperature, moisture, and chemicals.
  • The VVT Solenoids are manufactured to precise OE valve body dimensions and utilizes fluorocarbon O-rings to help prevent oil leakage.
  • The VVT Solenoids are 100% tested and inspected to ensure consistent quality with end of production tested in oil to be sure the valve is primed and will work properly upon installation.
See More

Melling – Stock Replacement Engine Assembly Lubricant (Part No.M-10012G)

Stock Replacement Engine Assembly Lubricant

from

$113.99
Product Features:
  • Superior Wear Protection – Formulated with extreme pressure additives to protect engine components from metal-to-metal contact during initial startup
  • High Tackiness – Stays in place during assembly and storage, ensuring consistent lubrication exactly where it’s needed
  • Broad Compatibility – Safe for use with all engine components including camshafts, lifters, bearings, and valve train parts
  • Easy Startup Support – Reduces friction and prevents dry starts by providing instant lubrication during first engine fire-up
See More

Sealed Power – Engine Assembly Lubricant (Part No.55-400)

Engine Assembly Lubricant

from

$10.49
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Formulated for prelubrication cam lobes, lifters & engine bearings
  • Increases load carrying capacity
  • Holds fast to surfaces
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • 4.0 oz. Squeeze Container
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Melling – Stock Replacement Engine Assembly Lubricant, 4 oz. (Part No.M-10012)

Stock Replacement Engine Assembly Lubricant, 4 oz.

from

$6.99
Product Features:
  • Superior Wear Protection – Formulated with extreme pressure additives to protect engine components from metal-to-metal contact during initial startup
  • High Tackiness – Stays in place during assembly and storage, ensuring consistent lubrication exactly where it’s needed
  • Broad Compatibility – Safe for use with all engine components including camshafts, lifters, bearings, and valve train parts
  • Easy Startup Support – Reduces friction and prevents dry starts by providing instant lubrication during first engine fire-up
See More

Victor Reinz – Fuel Pump Gasket (Part No.41-77593-00)

Fuel Pump Gasket

from

$6.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
See More

MAHLE Original – Fuel Pump Gasket (Part No.D32551)

Fuel Pump Gasket

from

$6.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
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Dayco – Premium Timing Belt, 79.69 Inch With 253 Round Tooth, With Flat Tip (Part No.95297)

Premium Timing Belt, 79.69 Inch With 253 Round Tooth, With Flat Tip

from

$42.99
Manufactured with tough, wear-resistant fabric, high-tensile strength cord and a molded tooth surface, the Dayco timing belt provides consistent slip-proof power transfer and high resistance to oil and engine heat. The belt features a molded cog design which runs quieter and is more economical and a premium, high modulus glass fiber cord that delivers precise length stability to keep the engine running smoothly over the life of the belt.

Product Features:
  • Designed for specific OHC and DOHC applications that range from normal service to high performance, high temperature engines
  • Offers noise reduction and minimum dimensional tolerances for precise valve timing
  • Engineered with reduced elongation for maximum durability, high abrasion resistance and better performance
  • This belt has a round tooth w/ flat tip profile; designed to fit the timing sprockets precisely
See More

Dayco – Premium Timing Belt, 47.25 Inch With 150 Round Tooth, With Flat Tip (Part No.95306)

Premium Timing Belt, 47.25 Inch With 150 Round Tooth, With Flat Tip

from

$44.49
Manufactured with tough, wear-resistant fabric, high-tensile strength cord and a molded tooth surface, the Dayco timing belt provides consistent slip-proof power transfer and high resistance to oil and engine heat. The belt features a molded cog design which runs quieter and is more economical and a premium, high modulus glass fiber cord that delivers precise length stability to keep the engine running smoothly over the life of the belt.

Product Features:
  • Designed for specific OHC and DOHC applications that range from normal service to high performance, high temperature engines
  • Offers noise reduction and minimum dimensional tolerances for precise valve timing
  • Engineered with reduced elongation for maximum durability, high abrasion resistance and better performance
  • This belt has a round tooth w/ flat tip profile; designed to fit the timing sprockets precisely
See More

Dayco – Premium Timing Belt, 48.19 Inch With 153 Round Tooth, With Flat Tip (Part No.95317)

Premium Timing Belt, 48.19 Inch With 153 Round Tooth, With Flat Tip

from

$52.99
Manufactured with tough, wear-resistant fabric, high-tensile strength cord and a molded tooth surface, the Dayco timing belt provides consistent slip-proof power transfer and high resistance to oil and engine heat. The belt features a molded cog design which runs quieter and is more economical and a premium, high modulus glass fiber cord that delivers precise length stability to keep the engine running smoothly over the life of the belt.

Product Features:
  • Designed for specific OHC and DOHC applications that range from normal service to high performance, high temperature engines
  • Offers noise reduction and minimum dimensional tolerances for precise valve timing
  • Engineered with reduced elongation for maximum durability, high abrasion resistance and better performance
  • This belt has a round tooth w/ flat tip profile; designed to fit the timing sprockets precisely
See More

Dayco – Premium Timing Belt, 23.75 Inch With 67 Round Tooth, With Flat Tip (Part No.95352)

Premium Timing Belt, 23.75 Inch With 67 Round Tooth, With Flat Tip

from

$24.99
Manufactured with tough, wear-resistant fabric, high-tensile strength cord and a molded tooth surface, the Dayco timing belt provides consistent slip-proof power transfer and high resistance to oil and engine heat. The belt features a molded cog design which runs quieter and is more economical and a premium, high modulus glass fiber cord that delivers precise length stability to keep the engine running smoothly over the life of the belt.

Product Features:
  • Designed for specific OHC and DOHC applications that range from normal service to high performance, high temperature engines
  • Offers noise reduction and minimum dimensional tolerances for precise valve timing
  • Engineered with reduced elongation for maximum durability, high abrasion resistance and better performance
  • Timing marks are applied on the belt for proper installation
See More

Dayco – Premium Timing Belt, 46.62 Inch With 148 Round Tooth, With Flat Tip (Part No.95334)

Premium Timing Belt, 46.62 Inch With 148 Round Tooth, With Flat Tip

from

$47.99
Manufactured with tough, wear-resistant fabric, high-tensile strength cord and a molded tooth surface, the Dayco timing belt provides consistent slip-proof power transfer and high resistance to oil and engine heat. The belt features a molded cog design which runs quieter and is more economical and a premium, high modulus glass fiber cord that delivers precise length stability to keep the engine running smoothly over the life of the belt.

Product Features:
  • Designed for specific OHC and DOHC applications that range from normal service to high performance, high temperature engines
  • Offers noise reduction and minimum dimensional tolerances for precise valve timing
  • Engineered with reduced elongation for maximum durability, high abrasion resistance and better performance
  • Teflon coated profile round tooth with flat tip belt designed for specific high performance, high temperature engines
See More

Dayco – Premium Timing Belt, 10.63 Inch With 54 Round Tooth, With Grooved Tip (Part No.95348)

Premium Timing Belt, 10.63 Inch With 54 Round Tooth, With Grooved Tip

from

$18.29
Manufactured with tough, wear-resistant fabric, high-tensile strength cord and a molded tooth surface, the Dayco timing belt provides consistent slip-proof power transfer and high resistance to oil and engine heat. The belt features a molded cog design which runs quieter and is more economical and a premium, high modulus glass fiber cord that delivers precise length stability to keep the engine running smoothly over the life of the belt.

Product Features:
  • Designed for specific OHC and DOHC applications that range from normal service to high performance, high temperature engines
  • Offers noise reduction and minimum dimensional tolerances for precise valve timing
  • Engineered with reduced elongation for maximum durability, high abrasion resistance and better performance
  • This belt has a round, reinforced tooth w/ grooved tip profile; designed to fit the timing sprockets precisely
See More

Dayco – Premium Timing Belt, 88.51 Inch With 281 Round Tooth, With Flat Tip (Part No.95330)

Premium Timing Belt, 88.51 Inch With 281 Round Tooth, With Flat Tip

from

$114.99
Manufactured with tough, wear-resistant fabric, high-tensile strength cord and a molded tooth surface, the Dayco timing belt provides consistent slip-proof power transfer and high resistance to oil and engine heat. The belt features a molded cog design which runs quieter and is more economical and a premium, high modulus glass fiber cord that delivers precise length stability to keep the engine running smoothly over the life of the belt.

Product Features:
  • Designed for specific OHC and DOHC applications that range from normal service to high performance, high temperature engines
  • Offers noise reduction and minimum dimensional tolerances for precise valve timing
  • Engineered with reduced elongation for maximum durability, high abrasion resistance and better performance
  • This belt has a round tooth w/ flat tip profile; designed to fit the timing sprockets precisely
See More

Upgrade your 2021 Audi A4 Quattro with Top-Quality Engine Parts

When it comes to maintaining or upgrading your 2021 Audi A4 Quattro, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Audi or enhancing its overall performance, Engine Parts are key to keeping your A4 Quattro functioning at its best. At Advance Auto Parts, we offer a wide selection of 5 Engine Parts for the 2021 Audi A4 Quattro, designed to meet your needs without breaking the bank. From Engine Gaskets and Seal replacements to Engine Timing Parts upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Engine Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Engine Parts for your 2021 Audi A4 Quattro at great prices. Our Engine Parts inventory for this model ranges from just $6.99 to $113.99, with an average price of $52.55. Our 5 Engine Parts in stock come from 5 trusted brands, so you’re sure to find the right part for your 2021 Audi A4 Quattro without overspending.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Engine Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2021 Audi A4 Quattro is always ready to roll. We’re committed to providing you with everything you need to keep your A4 Quattro in top shape, all in one place. Start shopping confidently below for your 2021 Audi A4 Quattro!

Best-Selling Engine Gaskets and Seals for 2021 Audi A4 Quattros

Enhance the driving experience in your Audi with 1 quality Engine Gaskets and Seal components, starting at $6.99.

Victor Reinz – Fuel Pump Gasket (Part No.41-77593-00)

Fuel Pump Gasket

from

$6.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
See More

Most Popular 2021 Audi A4 Quattro Engine Timing Parts

Customize your Audi with 2 Engine Timing Parts products like Engine Variable Timing Solenoids and Timing Belts, all priced under $78.99.

Carquest Premium – Engine Variable Valve Timing (VVT) Solenoid (Part No.VVA1195)

Engine Variable Valve Timing (VVT) Solenoid

from

$78.99
The variable valve timing (VVT) system allows the engine control module (ECM) to regulate the intake and exhaust valve phase angle providing the most optimal engine volumetric efficiency under all engine operating condition to control tailpipe emissions and engine efficiency. Variable valve timing is an emission control device and although there are various methods of operation, the typical device is regulated by oil control valves, actuator solenoids and camshaft phasers.

Product Features:
  • Precision-wound coated copper windings increase product durability and life cycle.
  • Hard-coated and anodized spool valve to prevent corrosion and increase service life.
  • Threaded mounting bolt, hardware, and/or gaskets where applicable for easy installation.
  • Thermoplastic that is resistant to high temperatures, moisture, and chemicals.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure product reliability, every time.
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
See More

Dayco – Premium Timing Belt, 23.75 Inch With 67 Round Tooth, With Flat Tip (Part No.95352)

Premium Timing Belt, 23.75 Inch With 67 Round Tooth, With Flat Tip

from

$24.99
Manufactured with tough, wear-resistant fabric, high-tensile strength cord and a molded tooth surface, the Dayco timing belt provides consistent slip-proof power transfer and high resistance to oil and engine heat. The belt features a molded cog design which runs quieter and is more economical and a premium, high modulus glass fiber cord that delivers precise length stability to keep the engine running smoothly over the life of the belt.

Product Features:
  • Designed for specific OHC and DOHC applications that range from normal service to high performance, high temperature engines
  • Offers noise reduction and minimum dimensional tolerances for precise valve timing
  • Engineered with reduced elongation for maximum durability, high abrasion resistance and better performance
  • Timing marks are applied on the belt for proper installation
See More

Top Picks for 2021 Audi A4 Quattro Valve Cover and Cylinder Heads

Upgrade Audi A4 Quattros with top-quality Valve Cover and Cylinder Heads parts, including 1 OEM and aftermarket selections for your 2021 model.

Rein – Oil Drain Plug (Part No.HWP0043)

Oil Drain Plug

from

$14.99
Rein Automotive OE quality oil drain plugs are made with premium materials and designed and manufactured to be direct-fit replacements. Rein oil drain plugs are designed to tight tolerances to ensure proper sealing.

Product Features:
  • Designed to tight tolerances to ensure proper sealing.
  • Made using high quality materials.
  • Designed and constructed to strict engineering quality standards
  • Includes Rubber O-ring.
See More

In-Demand Engine Blocks for 2021 Audi A4 Quattros

Select from 1 premium Engine Blocks parts for your 2021 Audi A4 Quattro.

Melling – Stock Replacement Engine Assembly Lubricant (Part No.M-10012G)

Stock Replacement Engine Assembly Lubricant

from

$113.99
Product Features:
  • Superior Wear Protection – Formulated with extreme pressure additives to protect engine components from metal-to-metal contact during initial startup
  • High Tackiness – Stays in place during assembly and storage, ensuring consistent lubrication exactly where it’s needed
  • Broad Compatibility – Safe for use with all engine components including camshafts, lifters, bearings, and valve train parts
  • Easy Startup Support – Reduces friction and prevents dry starts by providing instant lubrication during first engine fire-up
See More

FAQs for 2021 Audi A4 Quattro Engine Parts

Which Engine Parts are best-sellers for 2021 Audi A4 Quattros?

Out of 5 Engine Parts that fit 2021 Audi A4 Quattros, the following parts are the top sellers:

What’s the price range for 2021 Audi A4 Quattro Engine Parts?

Engine Part prices for the 2021 Audi A4 Quattro start at $6.99 and go up to $113.99 for the most premium parts.

What’s the average price of a Engine Part for a 2021 Audi A4 Quattro?

The average price for Engine Parts for the 2021 Audi A4 Quattro is $52.55. Keep in mind the variety of part types within our Engine Part category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Parts for other Audi A4 Quattro model years?

Yes, we currently carry Engine Parts for 28 model years of Audi A4 Quattros between 1996 and 2025. Engine Parts are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Engine Parts for my 2021 Audi A4 Quattro?

The cheapest 2021 Audi A4 Quattro Engine Parts we carry in stock are:

What types of Engine Parts do you sell for my 2021 Audi A4 Quattro?

As of 11/2/25, these are some of the most in-demand types of Engine Parts for a 2021 Audi A4 Quattro:

Can I get help with 2021 Audi A4 Quattro Engine Part orders?

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

What is your return policy for Audi A4 Quattro Engine Parts?

Advance Auto Parts keeps returns simple. For new Audi A4 Quattro Engine Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.