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⭐ 99.8% positive (1939 ratings)🚚 $5–$35 flat shipping by weight 🌵 Family-run in Mesa, AZ↺ 30-day returns
Home › Auto Parts & Accessories › 4326873 NOx Sensor Inlet Upstream for Ram 2500 3500 4500 550
4326873 NOx Sensor Inlet Upstream for Ram 2500 3500 4500 5500 6.7L Cummins 13-18
4326873 NOx Sensor Inlet Upstream for Ram 2500 3500 4500 5500 6.7L Cummins 13-18 photo 14326873 NOx Sensor Inlet Upstream for Ram 2500 3500 4500 5500 6.7L Cummins 13-18 photo 24326873 NOx Sensor Inlet Upstream for Ram 2500 3500 4500 5500 6.7L Cummins 13-18 photo 34326873 NOx Sensor Inlet Upstream for Ram 2500 3500 4500 5500 6.7L Cummins 13-18 photo 44326873 NOx Sensor Inlet Upstream for Ram 2500 3500 4500 5500 6.7L Cummins 13-18 photo 54326873 NOx Sensor Inlet Upstream for Ram 2500 3500 4500 5500 6.7L Cummins 13-18 photo 64326873 NOx Sensor Inlet Upstream for Ram 2500 3500 4500 5500 6.7L Cummins 13-18 photo 7

4326873 NOx Sensor Inlet Upstream for Ram 2500 3500 4500 5500 6.7L Cummins 13-18

$120.59$133.99
You save $13.40 (10%) — sale already applied
Condition: New other (see details) · approx. 0.9 lb packed
✓ In stock — 1 available
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🚚 Shipping: $5.00 (weight-based flat rate; a whole order never ships for more than $35).
Ships from Mesa, AZ within 1 business day · estimated delivery 3–7 business days (continental US).
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Item Description

AZ SUN VALLEY SALES
QUALITY PARTS & GEAR FROM THE VALLEY OF THE SUN

4326873 Inlet Upstream NOx Sensor – 2013–2018 Ram 6.7L Cummins

Restore your diesel emissions system with this inlet (upstream) nitrogen oxide sensor, a direct replacement for OEM 4326873 / 68210084AA. Mounted before the SCR catalyst, it measures NOx in the exhaust stream so the system can dose DEF correctly – clearing fault codes and keeping your Cummins-powered Ram running at full power.

Key Features

  • Direct-fit replacement for OEM part numbers 4326873, 68210084AA, 5WK96742B – plug-and-play installation
  • Inlet/upstream position – monitors NOx levels entering the SCR system for accurate DEF dosing
  • Fits 2013–2018 Ram 2500 / 3500 / 4500 / 5500 with the Cummins ISB 6.7L diesel engine
  • Clears NOx-related fault codes and restores proper emissions system operation, helping avoid derate mode
  • Precision sensing element for reliable, stable readings and long service life

Specifications

Part Number4326873
Replaces OEM #68210084AA, 4326873RX, 5295473, 5WK96742B, 5WK9 6742B, 2872948, 904-6030
PositionInlet / Upstream (before SCR catalyst)
Sensor TypeNitrogen Oxide (NOx) Sensor
EngineCummins ISB 6.7L Turbo Diesel
Fitment2013–2018 Ram 2500, 3500, 4500, 5500

Note: Please verify part number and position (inlet/upstream) against your vehicle before ordering. After installation, a relearn/drive cycle may be required for codes to clear.

Ships fast and carefully packaged from the Valley of the Sun. Questions? Message us – we are happy to help!

Specifications

BrandDodge
TypeSensor

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