2021 Ram 1500 Gas Caps

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Keep Your 2021 Ram 1500 in Top Shape with a Quality Gas Cap

When it comes to maintaining or upgrading your 2021 Ram 1500, 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 Gas Cap for your 1500. We currently carry a top Gas Cap in stock that is built to last. Whether you’re replacing a damaged Gas Cap or looking to upgrade, our selection for the 2021 Ram 1500 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 Air Flow Sensors and Fuel Pumps to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2021 Ram 1500 running smoothly and looking great.

Essential 2021 Ram 1500 Gas Caps

Carquest Premium – Fuel Cap (Part No.10842)

Fuel Cap

from

$17.79
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
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Carquest Premium – Locking Fuel Tank Cap (Part No.10512)

Locking Fuel Tank Cap

from

$24.99
Product Features:
  • Protects your fuel from theft and vandalism
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
See More

Motorad – Non-Locking Tethered Fuel Tank Cap (Part No.MGC837T)

Non-Locking Tethered Fuel Tank Cap

from

$28.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Come pre-assembled for quick and easy installation.
  • Several fastener options to work with any fuel cap compartment configuration
  • Fits vehicles orginally equipped with tether
  • Reduces air pollution with proper sealing and venting
  • Manufactured from durable, long-life materials
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Motorad – Non-Locking Tethered Flex Fuel Tank Cap (Part No.MGC637T)

Non-Locking Tethered Flex Fuel Tank Cap

from

$21.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Come pre-assembled for quick and easy installation.
  • Several fastener options to work with any fuel cap compartment configuration
  • Fits vehicles orginally equipped with tether
  • Reduces air pollution with proper sealing and venting
  • Manufactured from durable, long-life materials
See More

Carquest Premium – Locking Flex Fuel Tank Cap (Part No.10508Y)

Locking Flex Fuel Tank Cap

from

$24.99
Product Features:
  • Independently tested for emission control
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
See More

Crown Auto Jeep Replacmnt – Non-Locking, Black, Plastic (Part No.52102464AA)

Non-Locking, Black, Plastic

from

$16.99
Crown Automotive offers the largest line of replacement parts for Jeep (R), as well as a growing line of parts for Chrysler and Dodge vehicles. Our applications features Axle, Body, Brake, Clutch, Cooling, Electrical, Engine, Fuel, Lamps, Mirrors, Steering, Suspension, Transmission and Wiper.

Product Features:
  • Constructed Out Of Quality Materials And Serve As A Deterrent To Fuel Theft And Vandalism
  • Gasoline Vapors Are Present Around Your Car At All Times And Result In A Fire Hazard
  • Crown Automotive Fuel Caps Also Help To Reduce The Amount Of Emissions That Are Emitted Into The Earth Ozone Layer
  • Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts
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Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17508Y)

Keyed Alike Locking Fuel Cap

from

$17.79
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Passes all state and federal emissions tests
  • Independently tested for emission control
  • Protects your fuel from theft and vandalism
  • Reduces air pollution with proper sealing and venting
  • Manufactured from durable, long-life materials
  • Manufactured from durable, long-life materials
See More

Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17508)

Keyed Alike Locking Fuel Cap

from

$14.29
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Passes all state and federal emissions tests
  • Independently tested for emission control
  • Protects your fuel from theft and vandalism
  • Protects your fuel from theft and vandalism
  • Reduces air pollution with proper sealing and venting
  • Manufactured from durable, long-life materials
See More

Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17512)

Keyed Alike Locking Fuel Cap

from

$17.49
Product Features:
  • Passes all state and federal emissions tests
  • Independently tested for emission control
  • Protects your fuel from theft and vandalism
  • Protects your fuel from theft and vandalism
  • Reduces air pollution with proper sealing and venting
  • Manufactured from durable, long-life materials
See More

Carquest Premium – Locking Fuel Tank Cap (Part No.10508)

Locking Fuel Tank Cap

from

$24.99
Product Features:
  • Independently tested for emission control
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
See More

Dorman – Help – Fuel Filler Neck Cover (Part No.55298)

Fuel Filler Neck Cover

from

$28.99
Capless fuel and diesel exhaust fluid (DEF) tank filler systems allow the entry of moisture and dirt that can damage fuel and emission control systems. Eliminate that potentially expensive problem while adding some distinctive style to your Jeep Grand Cherokee or Dodge Ram with these DEF and fuel tank caps. CNC-machined from billet aluminum and fitted with quality O-rings, these caps seal filler necks to keep contaminants out. They feature an eye-catching, glossy anodized coating that resists staining.

Product Features:
  • Improved design – these anodized aluminum diesel exhaust fluid (DEF) and fuel caps fit capless filler necks to keep contaminants out and protect emission and fuel systems from moisture and contaminants
  • Application specific – designed to securely seal the capless filler system necks on DEF and fuel tanks on certain Jeep Grand Cherokee and Dodge Ram diesel-equipped vehicles
  • Durable materials – precision-machined from durable billet aluminum and anodized with a glossy finish for durability and distinctive style
  • Trustworthy quality – vehicle try-on tested, and backed by a team of product experts in the United States and more than a century of automotive experience
See More

Carquest Premium – Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10838)

Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

from

$17.79
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:


    Product Features:
    • Manufactured from durable, long-life materials
    • Manufactured from durable, long-life materials
    • Reduces air pollution with proper sealing and venting
    • Independently tested for emission control
See More

Carquest Premium – Fuel Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10838Y)

Fuel Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack

from

$14.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
See More

Most Popular Gas Cap for 2021 Ram 1500s

Enhance your 2021 Ram 1500 with this popular Gas Cap we have in stock, for $28.99.

Dorman – Help – Fuel Filler Neck Cover (Part No.55298)

Fuel Filler Neck Cover

from

$28.99
Capless fuel and diesel exhaust fluid (DEF) tank filler systems allow the entry of moisture and dirt that can damage fuel and emission control systems. Eliminate that potentially expensive problem while adding some distinctive style to your Jeep Grand Cherokee or Dodge Ram with these DEF and fuel tank caps. CNC-machined from billet aluminum and fitted with quality O-rings, these caps seal filler necks to keep contaminants out. They feature an eye-catching, glossy anodized coating that resists staining.

Product Features:
  • Improved design – these anodized aluminum diesel exhaust fluid (DEF) and fuel caps fit capless filler necks to keep contaminants out and protect emission and fuel systems from moisture and contaminants
  • Application specific – designed to securely seal the capless filler system necks on DEF and fuel tanks on certain Jeep Grand Cherokee and Dodge Ram diesel-equipped vehicles
  • Durable materials – precision-machined from durable billet aluminum and anodized with a glossy finish for durability and distinctive style
  • Trustworthy quality – vehicle try-on tested, and backed by a team of product experts in the United States and more than a century of automotive experience
See More

FAQs for 2021 Ram 1500 Gas Caps

What’s the price range for 2021 Ram 1500 Gas Caps?

We currently have just one Gas Caps for the 2021 Ram 1500 in stock: Fuel Filler Neck Cover and it costs $28.99.

Does Advance Auto Parts sell Gas Caps for other Ram 1500 model years?

Yes, we carry Gas Caps for 8 model years of Ram 1500s between 2011 and 2020. The following model years are the most popular for Gas Cap purchases: 2020, 2018, 2017, 2016, 2015, 2014, 2013, 2012, and 2011.

Does Advance Auto Parts sell Gas Caps for any other 2021 Ram models?

Yes. We stock Gas Caps for 4 other popular 2021 Ram models. Some of the most popular are 2021 2500 Gas Caps, 2021 3500 Gas Caps, 2021 4500 Gas Caps, 2021 5500 Gas Caps, and 2021 ProMaster City Gas Caps.

What types of Gas Caps do you sell for my 2021 Ram 1500?

We currently have just 1 Gas Cap in stock for a 2021 Ram 1500, and as of 11/2/25, it is a Gas Cap.

Can I get help with 2021 Ram 1500 Gas Cap orders?

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

What is your return policy for Ram 1500 Gas Caps?

Advance Auto Parts keeps returns simple. For new Ram 1500 Gas Caps and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.