Standard Ignition Diesel Exhaust Fluid (DEF) Injection Nozzle P/N:DFI4
Meter diesel exhaust fluid precisely into the exhaust stream with the Standard Ignition Diesel Exhaust Fluid (DEF) Injection Nozzle (MPN DFI14). Positioned ahead of the SCR catalyst, this nozzle sprays DEF so the aftertreatment system can convert NOx emissions during operation. It drops in as a direct-fit replacement for the 2020-2021 Chevrolet Silverado 1500, 2020-2021 GMC Sierra 1500, 2021 GMC Yukon, 2021-2022 Cadillac Escalade, 2021-2022 Cadillac Escalade ESV, 2021-2022 Chevrolet Suburban, and 2021-2022 Chevrolet Tahoe — see the Buyer's Guide tab for engine specifics.
If a failed DEF injection nozzle is the cause of a DEF-system fault code, poor DEF delivery, or a reduced-power warning, this replaces it. Always diagnose the cause before replacing.
Interchange: 800-97252
80097252 · DEF14 · DEF103 · 55494572 · 55509767 · 55515114
This part cross-references / interchanges with the following part numbers:
What does this DEF injection nozzle do?
It sprays diesel exhaust fluid into the exhaust stream ahead of the SCR catalyst so the aftertreatment system can convert NOx emissions during engine operation.
Will this fit my vehicle?
It's a direct-fit replacement for the 2020-2021 Silverado 1500 and Sierra 1500, 2021 Yukon, and 2021-2022 Escalade, Escalade ESV, Suburban, and Tahoe. Check the Buyer's Guide tab.
What numbers does it interchange with?
800-97252 (80097252), DEF14, DEF103, 55494572, 55509767, and 55515114.
What are signs this nozzle may need replacing?
DEF-system fault codes, poor DEF delivery, or a reduced-power warning may point to the nozzle. Diagnose the cause first, since other components can trigger the same symptoms.
How does it deliver the fluid accurately?
Laser-drilled spray holes produce individual sprays for optimal spray preparation, while precision-wound, trimmed solenoid windings let the computer command efficient DEF delivery.
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.