Meter diesel exhaust fluid precisely into the exhaust stream with the Standard Ignition Diesel Exhaust Fluid (DEF) Injection Nozzle DFI13. It installs as a direct-fit replacement for the 2017-2019 Chevrolet Silverado 2500 HD and 3500 HD, and the 2017-2019 GMC Sierra 2500 HD and 3500 HD.
Positioned in the exhaust upstream of the SCR system, the nozzle sprays DEF (urea) into the hot exhaust gas so it can mix and convert nitrogen-oxide (NOx) emissions across the SCR catalyst as part of the vehicle's emissions-control operation.
Interchange: DEF13 · DEF102 · 12670033 · 12688993 · 800-97250 · 80097250
Manufacturer part number DFI13.
This part cross-references / interchanges with the following part numbers:
What does this DEF injection nozzle do?
It sprays diesel exhaust fluid (urea) into the exhaust stream upstream of the SCR catalyst, where it mixes with hot exhaust to help convert NOx emissions as part of the SCR aftertreatment process.
Which vehicles does the DFI13 fit?
It is a direct-fit replacement for the 2017-2019 Chevrolet Silverado 2500 HD and 3500 HD, and the 2017-2019 GMC Sierra 2500 HD and 3500 HD. See the Buyer's Guide tab to confirm your vehicle.
What interchange numbers does it replace?
It cross-references DEF13, DEF102, 12670033, 12688993, and 800-97250 (also written 80097250). Its own manufacturer part number is DFI13.
What are the signs a DEF injection nozzle may need replacing?
DEF or SCR warning lights, DEF-dosing fault codes, or fluid leakage at the nozzle can be signs. Diagnose the cause first, since these symptoms can also come from other parts of the DEF system.
Will replacing this nozzle clear my DEF warning light?
If a faulty DEF injection nozzle is confirmed as the cause, replacing it addresses that fault. Because the same warnings can stem from other SCR-system components, diagnose the cause before ordering.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
