BLPextrm Oxygen Upstream O2 Sensor for Polaris UTVs & ATVs | Ranger XP, RZR Pro R, Scrambler 1000
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Description
xOverview
BLPextrm's upstream oxygen sensor is built to help Polaris UTVs and ATVs monitor the air‑fuel balance with reliable signals. Crafted from durable materials and engineered for fast response, this sensor is designed to endure off‑road heat, dust, and vibration while supporting consistent engine monitoring. While performance can vary, many riders find upstream sensors helpful for smoother operation and steadier engine behavior in everyday riding.
Compatibility and fit
This upstream O2 sensor replaces the original part on a wide range of Polaris models, including Ranger XP/Crew XP 1000 (2017–2023), RZR XP/XP 4 1000 (2018–2022), RS1, Pro R 4 (2022), ProStar S4 (2023), and Scrambler 1000 XP S variants. It also suits several Sportsman 570 variants ( Touring, Trail, 6x6, X2 ) from 2019 to 2023. Before purchasing, please verify your vehicle year, model, and part number 4011853 to confirm compatibility.
Key benefits
- 650°C max temperature tolerance for a broader operating range.
- Faster sensor response for timely engine monitoring signals.
- Durable materials designed for long service life under harsh riding conditions.
- Replacement Part No: 4011853 for straightforward cross‑checking.
Why upstream O2 sensors matter
Oxygen sensors are central to the engine control system's ability to adjust air and fuel. When the upstream sensor provides accurate data, it can support steady idle, smoother throttle feel, and more predictable acceleration. Use of a well‑matched sensor may help maintain consistent engine behavior across varying loads and temperatures.
What to expect after installation
Post‑installation, you may notice more stable engine signals and a more predictable response during cruising and quick accelerations. Real results depend on overall maintenance, sensor condition, and vehicle history.
Support and care
If you have questions about compatibility or installation, our team is ready to assist. Email us with details about your model and symptoms, and we will help troubleshoot or confirm the right sensor for your Polaris vehicle.
Specs to know
- Replacement Part No: 4011853
- High‑temp sensor design for up to 650°C operation
- Durable construction suitable for off‑road environments
FAQ
Q: Will this upstream oxygen sensor fit my Polaris vehicle?
A: This upstream O2 sensor fits select Polaris UTVs and ATVs; please verify year, model, and part number 4011853 before purchasing.
Q: What benefits might I notice after installation?
A: Possible improvements include steadier idle, smoother throttle response, and consistent engine monitoring; results vary by vehicle and condition.
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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