Stant 10121 Engine Oil Filler Cap

OE-Style Oil Filler Cap for Toyota and Lexus

Stant 10121 is a black hard plastic cam-on engine oil filler cap with a rubber seal. It is made to match the function of the original cap and replaces the factory filler cap on select Toyota and Lexus engines.

Compatible with a wide range of Toyota Camry, Sienna, Highlander, Solara, Avalon, Supra, and Lexus ES, GS, IS, RX, and SC models, this oil filler cap supports a secure seal at the valve cover opening. Stant 10121 is a direct-fit replacement for common OE-style applications.

Key Features

• Black hard plastic cam-on oil filler cap
• Rubber seal for a secure closure
• OE-style replacement for the factory filler cap
• Built from quality material for engine bay use
• Stant 10121 part number for easy identification

Detailed Product Information

The Stant Oil Filler Cap line focuses on replacement caps that match original equipment fit and function. This Stant 10121 cap is designed for Toyota and Lexus applications where the factory oil fill cap uses a cam-on style design. It helps restore proper closure at the oil fill opening and is a practical replacement when the original cap is worn, cracked, or no longer seals correctly.

Fits 2001-2010 Toyota Highlander, N/A; Fits 2006-2008 Lexus RX400h, N/A; Fits 1999-2008 Toyota Solara, N/A; Fits 2004-2006 Lexus ES330, N/A; Fits 2006 Lexus IS250, N/A; Fits 2004-2006 Lexus RX330, N/A; Fits 1999-2006 Toyota Camry, N/A; Fits 1998-2006 Toyota Sienna, N/A; Fits 1997-2005 Lexus GS300, N/A; Fits 2001-2005 Lexus IS300, N/A; Fits 1997-2004 Toyota Avalon, N/A; Fits 2000-2003 Lexus ES300, N/A; Fits 1999-2003 Lexus RX300, N/A; Fits 1997-2000 Lexus SC300, N/A; Fits 1997-1998 Toyota Supra, N/A.

Common Issues This Part Can Address

• Broken or cracked oil filler cap
• Loose cap that no longer seals properly
• Missing factory oil fill cap
• Oil vapor escape around the filler opening
• Need for an OE-style replacement cap on Toyota and Lexus engines

Installation Notes and Tips

Remove the existing cap and inspect the filler neck and sealing surface before installation. Confirm the cam-on style engagement matches the original cap design, then install the cap fully until it seats securely. Verify the rubber seal is clean and properly positioned before closing the hood.

Quality Assurance

Stant manufactures replacement engine hardware intended to match OE fit and function. Part number 10121 is built as a direct replacement oil filler cap for the listed Toyota and Lexus applications.