TRQ Engine O2 02 Oxygen Sensors Kit - Upstream & Downstream for 2003 Dodge Ram 1500
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Description
xA direct-fit O2 Sensor Kit for your 2003 Dodge Ram 1500
Upgrade to a complete four-piece TRQ Engine O2 02 Oxygen Sensors kit, designed for the 2003 Dodge Ram 1500 with a 5.9L V8. This upstream and downstream sensor set is engineered to align with your vehicle’s original emission system, offering reliable measurements and consistent performance. The kit is built to endure real-road conditions, helping you maintain smooth engine operation without the guesswork of part-by-part replacements.
Each sensor is prepared with manufacturing precision, including an isostatic-pressing process that enhances strength and a plasma-spraying treatment that boosts sensitivity and longevity. The sensors also feature a double-layered 310S stainless steel construction, delivering enhanced protection against moisture and road debris that can otherwise affect sensor accuracy.
What’s included and how it helps
- Two downstream oxygen sensors
- Two upstream oxygen sensors
- Direct-fit design for a straightforward install with no modifications
- Pre-calibrated components to help restore proper sensing right out of the box
- Road-tested in TRQ’s Massachusetts R&D facility to validate fit and performance
- Best paired as a set to support balanced sensor readings, fuel economy, and emissions control
Real-world benefits you may notice
Replacing worn sensors can support more accurate fuel-management signals, which may contribute to steadier engine operation and potentially improved fuel economy. Users often experience steadier idle and responsiveness as the sensors relay cleaner data to the engine's control module. While results vary by vehicle condition and driving style, these sensors are designed to keep emission controls within their intended range without requiring modifications.
Fitment, installation, and quality assurance
This TRQ kit is tailored for the 2003 Dodge Ram 1500 with a 5.9L V8, providing upstream and downstream coverage for a balanced exhaust read. The parts are designed as direct replacements, reducing the effort of installation and the need for custom alterations. Each sensor is built from premium materials and subjected to testing to confirm compatibility and durability, helping you complete a confident replacement.
Note: Oxygen sensors benefit from replacement in sets to optimize overall sensor performance, fuel economy, and emissions. Always follow your vehicle manufacturer’s service guidelines and consult a professional if you are unsure about the wiring or sensor positioning.
FAQ
Q: Is this kit compatible with my 2003 Dodge Ram 1500?
A: Yes—it's designed for the 2003 Ram 1500 with a 5.9L V8, covering both upstream and downstream sensors.
Q: Should I replace sensors as a set or individually?
A: Replacing the sensors as a full set is recommended to optimize fuel economy and emissions.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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