Description: Diesel Exhaust Fluid Sensor Head Unit (16.5 Gallon)
Condition: New 
Brand: International® 
Part Number: 4158115 C94

• Weight: 6 lbs
• Fit for: Navistar, International 
• Functions:
  • DEF level monitoring: The sensor head unit continuously measures the DEF level in the tank, providing real-time data to the engine control module.
    
  • Diagnostic information: The sensor head unit may also provide diagnostic information to help identify and troubleshoot issues with the DEF system.
    
  • DEF refilling: The sensor head unit helps ensure that the DEF tank is refilled in a timely manner, preventing the DEF supply from running out and causing system problems.
    
  • Low DEF warning: When the DEF level falls below a certain threshold, the sensor head unit sends a signal to the engine control module, triggering a low DEF warning light or message on the vehicle's display.

Navistar® is a proud manufacturer of some of the widely used trucks, yellow school buses, defense vehicles, and engines. It was recognized as the first truck and engine manufacturer to be certified by the EPA for meeting 2007 standards for hydrocarbons and particulate matter. But the company's global portfolio is not limited to its line of vehicles and engines—it also carries high-quality replacement parts and accessories to keep all these working in top condition at all times. From hose fuel, bolts, plugs, rivets, and bearings to flashers, incandescent lamps, camshaft brake, gasket injector, and spring door locks, Navistar has also got you covered.