Genuine Volvo DEF Level & Quality Sensor | PN 24383068

You have 30 calendar days to return an item from the date you received it. To be eligible for return all parts must meet the following conditions:
• The item must be new, unused, and uninstalled;
• The product must be in salable condition, with no signs of installation (e.g., grease, scratches, or missing components);
• Original packaging is required, especially for branded parts;
• Any item that has been installed, modified, or misused is not eligible for return;
• Unacceptable returns may be shipped back to the customer upon request, at the customer's expense;
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The Volvo DEF Level/Quality Sensor (24383068) monitors both the level and quality of diesel exhaust fluid in the DEF tank of Volvo VNL and Mack trucks. This sensor alerts the driver to low DEF levels and detects DEF contamination — contaminated DEF can destroy the SCR catalyst, a repair costing thousands of dollars. A faulty DEF level sensor causes false low-level warnings, failure to detect actual contamination, and potential SCR system damage from undetected bad DEF.

Q: Which trucks does this DEF sensor fit?
A: Fits Volvo VNL and Mack trucks. Genuine Volvo OEM part number 24383068.

Q: What fault codes does a failing DEF level sensor trigger?
A: Common codes include DEF level sensor fault (SPN 1761) and DEF quality sensor faults visible in Volvo VCADS.

Q: Can a bad DEF sensor cause engine derate?
A: Yes. If the sensor incorrectly reports empty DEF or bad DEF quality, the engine management system will initiate a derate sequence.

Q: Is this a genuine Volvo part?
A: Yes. This is a genuine Volvo OEM DEF level and quality sensor — not an aftermarket replacement.

Q: What is included with this sensor?
A: Includes the complete DEF level/quality sensor assembly 24383068 with connector, ready for installation.