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The Best Automotive Replacement Oil Filler Caps

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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.

Looking for the best Automotive Replacement Oil Filler Caps?

Discover now our comparison of the best Automotive Replacement Oil Filler Caps. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Automotive Replacement Oil Filler Caps are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Automotive Replacement Oil Filler Caps in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1
Motorcraft EC743 Oil Cap
  • Resists corrosion and abrasion
  • Prevents oil leak
  • Made of high quality material
  • Easy installation
  • Ensures long lasting durability
No. 2
Engine Oil Filler Cap, Oil Cap Replacement, Car Oil Filler Cap Replaces OEM #12180-0H012 121800H010 121800H...
  • Good materials: the materials used in the engine oil cap have been strictly screened, durable, strong sealing performance, can be used for a long time is not easy to deformation is not easy to break, its excellent performance and reliability to ensure...
  • Function: The main function of the oil filling cover is to seal the engine refueling port, ensure that the oil can be injected into the engine smoothly, prevent the oil from leaking from the refueling port, and maintain the cleanliness of the engine room...
  • Engine oil cover replacement: Engine oil cover replacement OEM number: 12180-0H012, 121800H010, 121800H011, 1218028020, 121802801. Easy to install, can be replaced directly, without complex tools, check the part number before purchase, improve...
  • Scope of use: The car oil filler cap is widely applicable to a variety of Toyota models produced between 2000 and 2019, including for Prius, for Camry, for Highlander, etc. At the same time, it is compatible with Lexus models, such as for Lexus GS...
  • Products include: you will receive an engine oil filter housing cap, its compact design, with the engine fuel port closely, after installation can quickly restore the sealing performance of the oil, save time and effort, is a practical and reliable auto...
No. 3
MotoRad MO-99 Oil Filler Cap Engine Oil Filler Cap Fits Chevy Silverado 1500 99–13 2500 HD 01–19 Tahoe...
  • This part fits many vehicle years, makes and models. Please verify fitment with Amazon ConfirmedFit
  • Fits Select CHEVY: Silverado 1500 99-13, 2500 01-19, 3500 01-19, Tahoe 97-14, Impala 94-11, Suburban 97-99, 1500 00-14, 2500 00-13, 3500 16-19, Trailblazer 02-09, Malibu 97-10, Express 1500 03-14, Colorado 04-12, Corvette 93-12, S10 92-04, Cobalt...
  • Fits Select GMC: Sierra 1500 99-13, 2500 99-19, 3500 01-19, 1500 HD 07, 2500 HD-07, 1500 ic 07, Savana 1500 03-14, 2500 97-20, 3500 97-20, 4500 09-20, Yukon 97-14, XL 00-14, Envoy 02-09, Canyon 04-12, Sonoma 92-04, Envoy XL 02-06, Jimmy 92-05, Acadia...
  • Fits Select BUICK: LeSabre 86-05, Lucerne 06-11, Century 86-05, LaCrosse 05-09, Rendezvous 02-07, Park Avenue 91-05, Regal 90-04, Enclave 08-09, Rainier 04-07, Terraza 05-07, Riviera 86-99, Electra 86-90, Skylark 86-98, Reatta 88-91, Allure...
  • Fits Select PONTIAC: G6 05-10, Grand Prix 94-08, Grand Am 86-05, Firebird 89-02, Bonneville 87-05, Torrent 06-09, Montana 99-09, Solstice 06-09, G5 07-09, G8 08-09, GTO 04-06, Sunfire 02-05, Aztek 01-05, Trans Sport 90-98, Pursuit 05-06, G...
  • Fits Select CADILLAC: Escalade 02-14, DeVille 94-05, DTS 06-09, Escalade ESV 03-14, Escalade EXT 02-13, CTS 04-09, Seville 93-04, Eldorado 93-02, STS 05-09, SRX 04-11, XLR 04-09, Fleetwood 94-96, Allante 93, BLS 07-08 | BMW: 335i 08, X3 08, 328xi 08, X...
No. 4
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. 5
ApplianPar Transmission Filler ATF Cap Plug for Honda Accord 2003-2007, CRV 2007-2014, Civic 2014-2021, Fit...
  • Fit for Honda Accord 2003-2007, CRV 2007-2014, Civic 2014-2021, Fit 2015-2020, HR-V 2016-2021.
  • Fit for Acura MDX 2017-2020, RLX 2014-2020, TSX 2004-2014.
No. 6
Ford Genuine F3AZ-6766-B Oil Cap
  • Direct fit
  • Genuine OEM part
  • Country of Origin : United States
  • Quality that you can Count on
  • Fit type: Universal Fit
No. 7
Genuine Toyota OEM Oil Filter Cap (15620-36020)
  • Oil Filter Cap
  • Item Package Weight - 0.5 Pounds
  • Item Package Quantity - 1
  • Product Type - ENGINE COMPONENT CAP
SaleNo. 8
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. 9
MotoRad Engine Oil Filler Cap - MO213
  • Provides proper seal to ensure leak prevention
  • Stops engine blow by
  • High quality construction
No. 10
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

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Last update on 2026-04-17 / 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.