Description
Overview
Upstream (inlet) NOx sensor is an emissions system sensor installed ahead of downstream aftertreatment stages to measure nitrogen oxide levels in the exhaust stream. It helps provide real-time input to the engine and aftertreatment control system, supports emissions-related adjustments, and contributes to stable exhaust system performance in heavy-duty diesel applications.
Fitment
- Verify fitment with us before ordering.
Note: Verify fitment with us before ordering to ensure the correct part for your application.
Why Buy 2894941 from Wisent Parts
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Fast shippingOrders before 12PM EST ship same business day.
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180-day warrantyAll parts covered from delivery date.
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Easy returns30-day returns.
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Verify fitmentSend VIN/ESN and we’ll confirm.
Shop with confidence
Warranty Information
Wisent Parts offers a 180-day warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.
Return Information
This part is sold as a final sale item and cannot be returned or refunded, including if it was ordered in error. Please confirm fitment before ordering - send us your VIN, engine serial number, or original part number and we will verify it for you. For full details, please refer to the Returns page.