Performance Overview

The Magnaflow OEM Grade Catalytic Converters are the perfect replacement for your stock converter. They are crafted from high-quality stainless or aluminized steel for maximum durability. They are seam-welded for unbreakable bonds with no risk of vibrations. The catalytic converters are available with a lap inserted in the point where the neck meets the catalytic converter body. The neck is carefully formed to be sure that it doesn't reach the body where it can cause trouble to the exhaust flow. As an additional safety feature, the Catalytic Converter has a heavy duty heat shield to protect it against extreme heat and give additional stability.

Key Features

• Brand: MagnaFlow
• Part number: 51231
• Product type: Direct Fit OEM Grade Catalytic Converter (2" ID/2.25" OD)
• Designed for compatible vehicle applications listed on this page

Vehicle Fitment

• 2010 Toyota 4Runner, Note: Limited, Sr5, Trail; 4.0L; 2.00"; 2.25"
• 2011 Toyota 4Runner, Note: Limited, Sr5, Trail; 4.0L; 2.00"; 2.25"
• 2012 Toyota 4Runner, Note: Limited, Sr5, Trail; 4.0L; 2.00"; 2.25"
• 2013 Toyota 4Runner, Note: Limited, Sr5, Trail; 4.0L; 2.00"; 2.25"
• 2014 Toyota 4Runner, Note: Limited, Sr5, Trail; 4.0L; 2.00"; 2.25"
• 2015 Toyota 4Runner, Note: Limited, Sr5, Trail, Trd Pro; 4.0L; 2.00"; 2.25"
• 2016 Toyota 4Runner, Note: Limited, Sr5, Trail, Trd Pro; 4.0L; 2.00"; 2.25"
• 2017 Toyota 4Runner, Note: Limited, Sr5, Trail, Trd Off-Road, Trd Pro; 4.0L; 2.00"; 2.25"

FAQ

Will this fit my vehicle?
Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase.

What part number is this?
The listed part number is 51231.

Is this product designed for direct replacement?
Yes. This product is intended to match compatible vehicle applications listed in the fitment section.

Should I confirm fitment before ordering?
Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering.

Common Searches

• Direct Fit OEM Grade Catalytic Converter (2" ID/2.25" OD) for Toyota 4Runner
• 51231 fitment
• MagnaFlow Direct Fit OEM Grade Catalytic Converter (2" ID/2.25" OD)
• 2010 Toyota 4Runner Direct Fit OEM Grade Catalytic Converter (2" ID/2.25" OD)

Vehicle Fitment Table