Complete DEF Tank
Heater Repair Kit
The Best Heater on the Market
Sq.in.total heating surface
47% larger heating surface than OEM
Military grade resistors
Proudly made in Canada
The Last Heater you will Ever Buy
We are confident that our kit will last for the rest of the service life of the vehicle and we are backing it with our Lifetime Limited Warranty.
See Our Heating Element in Action
OEM vs XeMODeX Design Comparison
What's Included in Our Kit
Delivery Pump Oil Rings X 2
Stainless Steel Pump Hex Screws X 3
Stainless Steel Star Washers X 2
Special XeMODeX Tool
4mm Hex Key
Special XeMODeX Tool
Diesel Exhaust Fluid (DEF) Tank
The fluid is stored in the plastic storage tank (9). The fluid’s level is monitored by the level sensor (4). The level sensor consists of four electrodes that measure the fluid level through conductivity. The level sensor only has the capability of reading 0%, 33%, 66% and 100%. Fluid’s temperature is monitored by the NTC temperature sensor (5). Below -34°C (-30°F) the DEF system activation is disabled by the ECM.
DEF fluid is a urea based product, it freezes at -11°C (12.2°F). The heating element (6) is used to prevent the fluid from freezing while the engine is running. With the engine off, the heating element will not engage and the fluid will be allowed to freeze if the ambient temperature is below the fluid’s freezing point. Depending on the size of the tank, it might take up to 5hrs for the fluid to fully thaw out.
The heating element (6), the temperature sensor (5) and level sensor (4) are housed in the heating pod (3). This allows the heater to heat small portion of the urea at and prevents fluid from splashing around inside the tank which will affect the level sensor and temperature readings.
The delivery pump (1) sucks the fluid from the tank and pressurizes it to a minimum of 3100 millibars. The pressurized fluid exits the pump at the feedline nipple (2) and is delivered via heated pressure line to the dosing injector located at the catalyst. The delivery pump has its own built in heater as well.