Product Overview
Cummins 5679700, 6304160 Inlet NOx Sensor Replacement
Restore commercial fleet emissions performance with this premium Dinex 2nd Generation aftermarket Nitrogen Oxide (NOx) sensor. Backed by an industry-leading 2-Year Unlimited Mileage Warranty, this brand-new inlet NOx sensor is engineered as a direct-fit replacement for Cummins 5679700 and 6304160, including applicable NX and RX factory service variations. It also direct-matches PACCAR / Cummins A067P307 and cross-references Dinex 5EL127. Dinex 2nd Generation smart-sensing technology combines advanced ceramic elements with precise microprocessor controls to deliver reliable communication with your vehicle ECU and prevent costly engine derates.
Cummins 5679700 & 6304160 NOx Sensor Cross References
How to Verify Your Unit: This direct-fit inlet NOx sensor replaces components stamped with an original housing, casing, or electronic control module tag matching any of the OEM or supplier cross-reference numbers listed below:
| Manufacturer / Cross Type | Interchange Part Numbers |
|---|---|
| Primary Cummins OEM Cross References | 5679700, 6304160 (Also replaces factory service numbers 5679700NX, 5679700RX, 6304160NX, 6304160RX) |
| Secondary OEM Cross References | A067P307 |
| Dinex Part Number | 5EL127 |
Compatible Engine & Commercial Vehicle Applications
Engineered for direct drop-in replacement on heavy-duty commercial transport platforms equipped with 15-liter Cummins diesel architectures:
- Engine Platforms: Cummins ISX15, QSX15, and X15 (15.0L Heavy-Duty Diesel)
- Emissions Certification: EPA21 and compatible EPA emissions systems
- Compatible Truck Makes: Kenworth, Peterbilt, Freightliner, International, Western Star, and other commercial trucks powered by compatible Cummins 15L engines
- Sensor Position: Inlet / Upstream (Pre-SCR Catalyst) Position
Dinex 5EL127 Technical Specifications
| Product Type | Nitrogen Oxide (NOx) Sensor |
|---|---|
| Sensor Technology | Dinex 2nd Generation |
| Sensor Position | Inlet / Upstream (Pre-SCR Position) |
| Overall Length / Harness | 31.69 in (805.00 mm) |
| Width & Height Profile | 2.55 in x 31.69 in (65.00 mm x 805.00 mm) |
| Net Assembly Weight | 1.10 lbs (0.50 kg) |
| Exhaust Emissions Norm | EPA21 Compliant |
| Warranty Protection | 2-Year Unlimited Mileage Warranty |
| Core Requirement | No core charge or core return required |
Order Fulfillment & Core Policy
There is no core charge or core return required for this product. You purchase this premium emissions module outright with zero core deposit fees or return-shipping requirements.
All orders received by 2:00 PM EST are processed for same-day shipment from our regional distribution hubs to minimize commercial fleet downtime. Because inventory is actively fulfilled across regional facilities, counter sales may occasionally impact online stock counts. If an availability conflict arises, our support team will contact you immediately.
Important Fitment Note: NOx sensors can vary by engine family, emissions tier configuration, sensor position (inlet vs. outlet), and ECU calibration. Always match your replacement query to the exact part number stamped on your original sensor casing, or verify compatibility using your vehicle's VIN number, engine serial number (ESN), or official dealer service documentation before ordering. Product images are for reference only.
California Proposition 65 Warning: WARNING: This product can expose you to chemicals known to the State of California to cause cancer or reproductive harm. For more information, visit www.P65Warnings.ca.gov.