Oxygen Sensor 1 Sensor 2 for Ford F-150 2004-2008 Upstream

In this review the Oxygen Sensor 1 Sensor 2 kit is evaluated for owners who need a full upstream and downstream replacement set for Ford F-150 and Lincoln Mark LT trucks. The bottom line: this four-piece kit covers both banks with 2pcs upstream and 2pcs downstream and comes with a One Year Unlimited Mileage Quality Guarantee, making it a convenient option for DIYers who want a complete swap in one purchase. It is best suited to people who can confirm fitment by using the vehicle selector before ordering.

Key Features

• Complete 4-piece kit: Includes two upstream and two downstream sensors so both banks are serviced in one job, reducing repeat purchases.
• Wide fitment: Designed to fit Ford F-150 model years 2004-2008 across 4.2L, 4.6L and 5.4L engines and Lincoln Mark LT 5.4L for 2006-2008, simplifying compatibility for those trucks.
• One year guarantee: The One Year Unlimited Mileage Quality Guarantee provides a defined window for replacement or support if a defect appears.
• DIY friendly: Customers report the sensors are generally easy to install, which can save labor cost when installing at home.
• Fitment check recommended: The listing asks buyers to use the Select Your Vehicle check (brand, model, year, engine, Note) to confirm compatibility before purchasing.

Who It's For

This kit is a practical choice for DIY mechanics and independent shops that service Ford F-150 trucks from 2004 through 2008 and Lincoln Mark LT 2006-2008 and want to replace both upstream and downstream oxygen sensors at once. It suits owners who prefer to order a full set rather than sourcing individual sensors and who will verify engine and model details with the fitment tool.

It is less suitable for people who require guaranteed OEM-level longevity or for those who need sensors proven to clear persistent diagnostic trouble codes, since some customers reported functionality issues and code accuracy concerns. Buyers who prioritize long-term reliability over initial cost should consider higher-end or OEM alternatives.

Pros & Cons

Pros

• Complete set of 4 sensors covers both upstream and downstream positions in a single purchase.
• Fits multiple engine sizes for F-150s and the Lincoln Mark LT, reducing confusion about which sensors to buy.
• Easy to install according to customer feedback, which helps DIY replacement jobs.

Cons

• Several customers reported functionality failures and code accuracy problems, indicating inconsistent long-term reliability.

Specifications

Product type	Oxygen sensor kit (4 pcs)
Fitment	Ford F-150 2004-2008; Lincoln Mark LT 2006-2008
Engine compatibility	4.2L, 4.6L, 5.4L
Installation	2pcs upstream + 2pcs downstream
Warranty	One Year Unlimited Mileage Quality Guarantee

Our Verdict

The Oxygen Sensor 1 Sensor 2 4-piece kit is a convenient, cost-conscious option for F-150 and Lincoln Mark LT owners who need a full upstream and downstream replacement and who will confirm fitment before ordering. It offers easy installation and a one year guarantee, but potential buyers should weigh reports of inconsistent functionality and code accuracy when deciding if this kit meets expectations for long-term reliability.

Frequently Asked Questions

Will these sensors fit my truck?
Check the Select Your Vehicle tool for brand, model, year and engine details; the kit is made for F-150 2004-2008 and Mark LT 2006-2008 with listed engines.

How many sensors are included?
The kit includes four sensors: two upstream and two downstream for a complete bank replacement.

Is there a warranty?
Yes, the product carries a One Year Unlimited Mileage Quality Guarantee as noted in the listing.