Hi Mike, I'm happy to be able to assist you. This set Federal emissions catalytic converter is guaranteed to fit the super cab (extended cab) of the 2010 Ford F-150 Platinum 8 Cyl 5.4L. These are high-flow cats that can boost your horsepower by 4hp to 10 hp by providing that extra airflow. These cats are a combination of bolt-on and welded. If you have access to the correct tools and are confident in removing and installing the converter, then you will be able to continue with the replacement yourself. If not, you will need to take your truck to a professional to do it. I suggest checking YouTube and Google for step-by-step instructions. Click on the link below to place an order for 40% less than the usual price today while supplies last. I'm hoping this will be useful. Enjoy your online shopping at CarParts.com! https://www.carparts.com/catalytic-converter/evan-fischer/set-repf960335?can=CPGG4850_CSQA_20221006

I installed these on my 08 expedition. They do fit with a little finesse. They are smaller than the stock cats, and have less packing in them. So far so good.Joe

Hi Juan, I'm glad to assist you. No. It is not a CA-legal, 50-state legal catalytic converter. The correct part number, which is 50-state legal, is 776400, by the Catco brand with a 5-year warranty. Our price is still way far below compared to the dealer. It also comes with a 30-day post-purchase price match guarantee. Click the link below to buy today. Happy shopping! https://www.carparts.com/details/Lincoln/Navigator/Catco/Catalytic_Converter/2007/L_Luxury/8_Cyl_5-dot-4L/CAT776400.html?can=CPJE1043_CSQA_20220925

No

Hi Eric, I'm glad to assist you. Yes, replacing this part would fix the problem and the check engine light should go off once this catalytic converter is fully installed. Click the link below to order today and grab our sale price offer, which also comes with a 30-day post-purchase price match guarantee. I hope this helps. Happy shopping. https://www.carparts.com/details/Ford/F-150/Evan_Fischer/Catalytic_Converter/2009/XLT/8_Cyl_5-dot-4L/SET-REPF960335.html?can=CPJE1043

Yes if all 02 sensor working properly

Hi John, I'm happy to assist you. Yes. This kit includes all the components shown in the photos. Click this link to order the part while it's on sale: https://www.carparts.com/catalytic-converter/evan-fischer/set-repf960335?can=CPAP3648 I hope this helps. Enjoy shopping at Carparts.com!

Yes it does come exactly as shown in the picture and fits the vehicle pretty easily.

Hi R E, As per checking, this item does not fit the 2014 Lincoln Navigator. To check the fitment please use our Vehicle Selector — which can be found towards the top of the homepage as well as all categories, search results, and product pages — can help verify if a part will fit your specific application. To enter your application, simply select your vehicle’s year, make, model, sub-model, and engine type and click “Go.” Once your application is selected, you’ll see a “Guaranteed to Fit” badge if the part will fit, and we recommend that you also double-check Your Vehicle Fit Details as well as the Vehicle Fitment Information table on the product page.

No it won't fit your 2014 Lincoln Navigator