Gates 31284 Engine Oil Filler Cap

Gates 31284 Oil Filler Cap for Honda and Acura

The Gates 31284 oil filler cap is an OE exact replacement built for a secure, reliable seal on a wide range of Honda and Acura engines. It uses impact-resistant plastic with a rubber sealing component to help maintain proper crankcase sealing and keep the oil fill opening closed under normal engine operation.

Key Features

• OE exact oil filler cap for direct replacement fitment
• Black plastic and rubber construction for everyday durability
• Screw-on cam type for a secure threaded installation
• Gasket or seal included for proper sealing at the oil fill neck
• Measures 2.15 in. wide, 1.32 in. high, with a 2.18 in. shell diameter
• Neck depth of 1.25 in. and neck diameter of 1.24 in.

Product Details

Gates Oil Filler Cap 31284 is part of the Gates oil cap line, which focuses on durable replacement caps made from impact-resistant plastic or heavy-gauge metal. This cap is specified as OE exact and is built to match the original style and sealing profile used on many Honda Civic, Honda CR-V, Honda Accord, Acura MDX, and Acura TL applications. For buyers searching for a Honda oil filler cap or Acura oil cap replacement, this part number 31284 provides a direct-fit solution for the oil fill opening.

This part cross-references Dorman - HELP 80985 and Wix 46578 for the same application.

Common Uses

• Replacing a cracked, missing, or loose oil filler cap
• Restoring a proper seal at the engine oil fill opening
• Addressing oil vapor escape from a worn cap or seal
• Replacing a cap that no longer threads on securely
• Matching OE-style fitment on Honda and Acura engines

Installation Notes and Tips

Verify the neck diameter and cap style before installation. This is a screw-on oil filler cap, so it should thread on smoothly without forcing. Inspect the sealing surface and neck area for damage or debris before installing the new cap. Confirm vehicle application by year, make, and model, especially on Honda Civic, Honda CR-V, Honda Pilot, Acura MDX, and Acura TL fitments.

Quality Assurance

Gates builds this oil filler cap with impact-resistant plastic or heavy-gauge metal construction to support long service life. The OE exact rating indicates an original-equipment-style replacement for the listed applications.

Compatible Vehicles

• Fits 2025 Acura ADX, Oil Filler Cap
• Fits 2023-2025 Acura Integra, Oil Filler Cap
• Fits 2022-2025 Acura MDX, Oil Filler Cap
• Fits 2002-2020 Acura MDX, Oil Filler Cap
• Fits 2013-2025 Acura RDX, Oil Filler Cap
• Fits 2015-2025 Acura TLX, Oil Filler Cap
• Fits 2003-2025 Honda Accord, Oil Filler Cap
• Fits 2002-2025 Honda Civic, Oil Filler Cap
• Fits 2002-2025 Honda CR-V, Oil Filler Cap
• Fits 2016-2025 Honda HR-V, Oil Filler Cap
• Fits 2001-2025 Honda Odyssey, Oil Filler Cap
• Fits 2019-2025 Honda Passport, Oil Filler Cap
• Fits 1994-1995 Honda Passport, Oil Filler Cap
• Fits 2003-2025 Honda Pilot, Oil Filler Cap
• Fits 2017-2025 Honda Ridgeline, Oil Filler Cap
• Fits 2006-2014 Honda Ridgeline, Oil Filler Cap
• Fits 2013-2022 Acura ILX, Oil Filler Cap
• Fits 2020-2022 Honda Insight, Oil Filler Cap
• Fits 2010-2014 Honda Insight, Oil Filler Cap
• Fits 2000-2006 Honda Insight, Oil Filler Cap
• Fits 2010-2021 Honda City, Oil Filler Cap
• Fits 2020-2021 Honda Clarity, Oil Filler Cap
• Fits 2018 Honda Clarity, Oil Filler Cap
• Fits 2014-2020 Acura RLX, Oil Filler Cap
• Fits 2018-2020 Honda BR-V, Oil Filler Cap
• Fits 2006-2020 Honda Fit, Oil Filler Cap
• Fits 2011-2016 Honda CR-Z, Oil Filler Cap
• Fits 2012-2015 Honda Crosstour, Oil Filler Cap
• Fits 2000-2014 Acura TL, Oil Filler Cap
• Fits 2004-2014 Acura TSX, Oil Filler Cap
• Fits 2010-2013 Acura ZDX, Oil Filler Cap
• Fits 2005-2013 Suzuki Grand Vitara, Oil Filler Cap
• Fits 2007-2013 Suzuki SX4, Oil Filler Cap
• Fits 2000-2012 Acura RL, Oil Filler Cap
• Fits 2012 BMW 128i, Oil Filler Cap
• Fits 2012 Suzuki SX4 Crossover, Oil Filler Cap
• Fits 2010-2011 Honda Accord Crosstour, Oil Filler Cap
• Fits 2003-2011 Honda Element, Oil Filler Cap
• Fits 2002-2006 Acura RSX, Oil Filler Cap
• Fits 2004-2006 Suzuki XL-7, Oil Filler Cap
• Fits 2003-2005 Acura EL, Oil Filler Cap
• Fits 2001-2003 Acura CL, Oil Filler Cap
• Fits 1998 Ford Escort, Oil Filler Cap
• Fits 1993-1995 Isuzu Rodeo, Oil Filler Cap
• Fits 1992-1995 Isuzu Trooper, Oil Filler Cap
• Fits 1990-1991 Isuzu Impulse, Oil Filler Cap