2018 Ram 1500 Gas Caps

Your 2018 Ram 1500 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Gas Caps you desperately need.

We currently carry 12 Gas Caps to choose from for your 2018 Ram 1500, and our inventory prices range from as little as $14.29 up to $25.99.

On top of low prices, Advance Auto Parts offers 3 different trusted brands of Gas Caps for the 2018 Ram 1500. We only sell parts from trusted brands like Carquest Premium so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 5,854 reviews on our Gas Caps for the 2018 Ram 1500 from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Gas Caps stock in-person!

Gas Caps for Your 2018 Ram 1500

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

Keyed Alike Locking Fuel Cap

from

$17.79
None

Product Features:
  • Protects your fuel from theft and vandalism
  • Manufactured from durable, long-life materials
  • Independently tested for emission control
  • Passes all state and federal emissions tests
  • Reduces air pollution with proper sealing and venting
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Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17508)

Keyed Alike Locking Fuel Cap

from

$14.29
None

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

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

Fuel Cap: 10838, 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:
  • 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 – 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
See More

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

Fuel Cap: 10838Y, 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

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

Locking Fuel Cap

from

$24.99
None

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

Carquest Premium – Locking Fuel Cap: 10508, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10508)

Locking Fuel Cap: 10508, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

from

$24.99
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:
  • Protects your fuel from theft and vandalism
  • 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

Carquest Premium – Locking Fuel Cap: 10512, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10512)

Locking Fuel Cap: 10512, Screw On, Direct Fit, Provides Tight Seal, 1 Pack

from

$24.99
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:
  • Protects your fuel from theft and vandalism
  • 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

Motorad – Tethered Fuel Cap (Part No.MGC837T)

Tethered Fuel Cap

from

$25.99
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 – Keyed Alike Locking Fuel Cap (Part No.17512)

Keyed Alike Locking Fuel Cap

from

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

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

Fuel Filler Neck Cover

from

$25.99
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
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Motorad – Tethered Fuel Cap (Part No.MGC637T)

Tethered Fuel 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

FAQs for 2018 Ram 1500 Gas Caps

What are the most popular Gas Caps for the 2018 Ram 1500?

With 3 brands you can trust, our most popular Gas Caps for the 2018 Ram 1500 parts are:
Fuel Cap
from $17.79
(40)
Fuel Cap
Gas Caps
Tethered Fuel Cap
from $25.99
This product is not rated
Tethered Fuel Cap
Gas Caps

What are the best aftermarket Gas Caps for the 2018 Ram 1500?

See what past customers had to say about our highest-rated Gas Caps for the 2018 Ram 1500:
Locking Fuel Cap
from $24.99
(2)
Locking Fuel Cap
“WORKS GREAT”