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The Best Automotive Replacement Oil Filler Caps

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Our picks are based on Amazon bestseller rankings, verified customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Choosing the correct oil filler cap is crucial for maintaining your vehicle's engine health and preventing oil leaks. A properly sealed cap ensures contaminants stay out and vital engine oil remains where it belongs, optimizing performance and extending engine life. Selecting a high-quality replacement can save you from potential costly repairs down the road.

No. 1
Engine Oil Filler Cap for Dodge Ram Jeep Chrysler, 1997-2003 Ram 1500 2500 3500, Wrangler, Cherokee, Caravan...
  • 【Engine Oil Fill Cap Replacement】 53010654AA 04648831AA, Check The Part Number Before Your Order, It saves you the time of buying back and forth, and also helps you save money.
  • 【High Quality】Made of high quality material, the fuel tank cap must be 100% inspected and tested many times before out of factory, durable and reliable. Direct replacement, easy to install.
  • 【Super-fit For Jeep】Super-fit For Jeep, 1996–2001 Cherokee, 1997–2006 Grand Cherokee, 1997–2006 Wrangler.
  • 【Super-fit For Dodge】Super-fit For Dodge, 1995–1997 Avenger (2-door, 2.0L), 1997–1998 B1500/B2500/B3500, 1996–2005 Stratus, 1997–2004 Intrepid, 1997–2004 Neon, 1998–2003 Dakota, 1998–2003 Durango, 1999–2004 Caravan/Grand Caravan...
  • 【Super-fit For Chrysler】Super-fit For Chrysler, 1995–1997, 2000 Cirrus, 1996–1997, 2001–2005 Sebring, 1997–2004 Concorde, 1997, 1999–2001 LHS, 1999–2004 300M (4-door, 3.5L V6), 1999–2004 Town & Country, 2000–2003 Voyager...
No. 2
Dorman 84111 Engine Oil Filler Cap Compatible with Select Lexus/Scion/Toyota Models
  • Direct replacement - this engine oil filter cap is designed to match the fit and function of the original cap on specified vehicles
  • Restores functionality - reliable replacement for an original part that is missing or cracked due to heat and fatigue
  • Durable construction - this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SaleNo. 3
ACDelco GM Original Equipment FC208 (12573337) Engine Oil Filler Cap
  • Seals and helps keep oil from leaking out of your engine oil filler opening
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
No. 4
ACDelco GM Original Equipment FC256 (25192632) Engine Oil Filler Cap
  • Seals and helps keep oil from leaking out of your engine oil filler opening
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
No. 5
ACDelco GM Original Equipment FC219 (12589430) Engine Oil Filler Cap
  • Leading Manufacturer Of High-Quality Products
  • International Renown For Our Diverse Range Of Award-Winning Products
  • Fully Equipped With State-Of-The-Art Technology
  • All Products Have Been Designed With The Professional In Mind
  • Constantly Modernizing Our Powerful Devices To Meet The Demands Of The Modern User
No. 6
Engine Oil Filler Cap for Hyundai Accent Genesis Sonata Azera Elantra Tucson Equus Veracruz Santa Fe for Kia...
  • 【Engine Oil Fill Cap Replacement】26510-26611, Check The Part Number Before Your Order, It saves you the time of buying back and forth, and also helps you save money.
  • 【High Quality】Made of high quality material, the fuel tank cap must be 100% inspected and tested many times before out of factory, durable and reliable. Direct replacement, easy to install.
  • 【Super-fit For Hyundai】For Hyundai Accent 2007-2017; Azera 2006-2017; Elantra 2006-2018; Elantra GT 2013-2018; Equus 2011-2016; Genesis 2009-2016; Genesis Coupe 2010-2016; Santa Fe 2010-2016; Sonata 2009-2016; Tucson 2013-2018; Veracruz 2007-2017
  • 【Super-fit For Kia】For Kia Amanti 2004-2009; Borrego 2009-2011; Forte 2010-2018; Forte Koup 2010-2016; Forte5 2013-2018; K900 2015-2018; Optima 2009-2015; Rio 2007-2017; Rio5 2006-2011; Rondo 2007-2017; Sedona 2007-2014; Sorento 2010-2018; Soul...
  • REPLACEMENT or REFUND when gas cap fails, cracks, stops working or any other problems. 12 months Worry-Free & 12-Hour response friendly customer service.
No. 7
Engine Oil Filler Cap For Honda, 2003-2019 Civic Pilot Accord CR-V,2004-2019 Odyssey, 2015-2019 Fit...
  • 【OEM Engine Oil Fill Cap Replacement】80985, 15610-RAA-A01, 15610-P5G-000, Check The Part Number Before Your Order, It saves you the time of buying back and forth, and also helps you save money.
  • 【High Quality】Made of high quality material, the fuel tank cap must be 100% inspected and tested many times before out of factory, durable and reliable. Direct replacement, easy to install.
  • 【Super-fit For Honda】Cap Super-fit for Honda, 2004-2019 Honda Odyssey, 2003-2019 Honda Civic, 2003-2019 Honda Pilot, 2003-2019 Honda Accord, 2003-2019 Honda CR-V, 2015-2019 Honda Fit, 2016-2019 Honda HR-V, 2018-2019 Honda Clarity, 2004-2011 Honda...
  • 【Super-fit For Acura 】Cap Super-fit for Acura, 2003-2018 Acura MDX, 2010-2012 Acura ZDX, 2013-2019 Acura ILX, 2014-2019 Acura RLX, 2003-2006 Acura RSX, 2004-2014 Acura TL, 2005-2012 Acura RL, 2009-2014 Acura TSX, 2012-2015 Honda Crosstour...
  • REPLACEMENT or REFUND when gas cap fails, cracks, stops working or any other problems. 12 months Worry-Free & 12-Hour response friendly customer service.
No. 8
Genuine Toyota 12180-0P021 Oil Fill Cap
  • Oil Filler Cap
  • Item Package Dimension: 2.29L x 1.99W x 1.59H inches
  • Item Package Weight - 0.022 Pounds
  • Item Package Quantity - 1
  • Product Type - ENGINE COMPONENT CAP

Last update on 2026-07-17 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Automotive Replacement Oil Filler Caps

Compatibility and Fitment

Ensuring the oil filler cap is a perfect match for your vehicle's make, model, and year is paramount. An ill-fitting cap can lead to oil leaks, contamination, and even engine damage. Always verify the part number with your vehicle's specifications or consult a compatibility chart provided by the manufacturer. Some caps are universal, but most are designed for specific engine types or car brands.

Material and Durability

The material of the cap directly impacts its longevity and resistance to engine heat and chemicals. Common materials include high-grade plastic, aluminum, or steel. Plastic caps should be made from heat-resistant polymers to prevent cracking and degradation over time. Aluminum or steel caps offer superior durability and heat resistance, often found in performance or heavy-duty applications. Consider the cap's construction quality to ensure it withstands the harsh engine environment.

Seal Quality and Leak Prevention

A primary function of an oil filler cap is to create an airtight seal, preventing oil from splashing out and keeping moisture and debris from entering the engine. Inspect the cap's gasket or O-ring; it should be robust and made from oil-resistant rubber. A high-quality seal ensures optimal engine operation and prevents costly oil loss. Look for caps that promise a tight, secure fit to avoid future issues.

Frequently Asked Questions

Why is a functional oil filler cap important for my engine?
A functional cap is vital for maintaining engine health by sealing the oil reservoir. It prevents external contaminants like dirt and moisture from entering the engine oil, which could cause significant wear and damage. Additionally, it stops oil from splashing out, ensuring proper lubrication levels are maintained.
How often should an oil filler cap be inspected or replaced?
It's recommended to inspect the cap for cracks, brittleness, or a degraded seal every time you check or change your engine oil. While there's no fixed replacement schedule, consider replacing it if you notice any signs of wear, a loose fit, or oil residue around the cap area.
What are the common signs of a failing oil filler cap?
Key indicators of a failing cap include visible cracks on the cap body, a hardened or missing rubber gasket, or a cap that feels loose when twisted into place. You might also observe oil leaks or residue around the oil filler neck, suggesting the seal is compromised.
Can using the wrong type of oil filler cap cause engine problems?
Yes, using an incorrect or ill-fitting cap can lead to several issues. It might not seal properly, resulting in oil leaks, engine contamination, and reduced oil pressure. In some cases, a cap that doesn't vent correctly could even lead to pressure buildup or vacuum issues within the engine.