UREA Delete Kits For Trucks
Diesel Spec provides UREA delete tuning services for selected diesel engine applications used off-highway or on closed courses. This service concerns the selective catalytic reduction (SCR) emissions system, which uses diesel exhaust fluid (DEF). Explore the engine brands we service and contact our team to confirm compatibility for your equipment.
What is the UREA system on a diesel truck?
The UREA system is part of the emissions aftertreatment equipment used on certain diesel engines. It relies on selective catalytic reduction (SCR) technology to help reduce nitrogen oxide (NOx) emissions in diesel exhaust.
This process uses diesel exhaust fluid (DEF), also known as AdBlue in some markets. DEF contains a urea solution that works with the SCR catalyst to convert nitrogen oxides primarily into nitrogen and water vapor.
An SCR system may include a DEF tank, pump, injectors, sensors and catalyst. Its configuration and maintenance requirements depend on the engine and vehicle application.
What is UREA delete tuning?
For eligible off-highway or closed-course applications, UREA delete tuning may involve an electronic calibration adapted to the engine control module (ECM) and SCR/DEF system configuration.
Available tuning options depend on the engine manufacturer, model, model year and electronic configuration. A technical compatibility check is therefore required before confirming the service.
Which diesel engine brands does Diesel Spec service?
Diesel Spec provides tuning services for various diesel engine brands, including Cummins, Detroit, International, Isuzu, Paccar and Mercedes. UREA delete service availability must be confirmed according to the engine and its emissions aftertreatment configuration.
Explore the manufacturer-specific pages in the “Tunings” section below to learn more about the services available.
Don’t see your engine or need to verify its compatibility? Contact our team with the engine manufacturer, model and model year.
What should be checked before UREA delete tuning?
Several details should be verified before any tuning service is considered:
- Engine manufacturer, model and year: these identify the specific diesel engine configuration.
- SCR/DEF system: diesel engines do not all use the same emissions aftertreatment equipment.
- Electronic configuration: available tuning options depend in part on the engine control module.
- Vehicle or equipment application: the service described here is restricted to eligible off-highway or closed-course use.
These checks help Diesel Spec determine which services are available for a particular engine configuration.
Is UREA delete tuning permitted on public roads?
Diesel Spec’s UREA Delete service is intended solely for eligible off-highway or closed-course applications. It cannot be performed on vehicles registered or certified for highway use. Applicable federal, state, provincial and local regulations should be reviewed before proceeding.
For more information about this service, visit our Off-Highway Tuning page.
Frequently asked questions about UREA delete tuning
What is the difference between UREA, DEF and SCR?
Urea is an ingredient in diesel exhaust fluid (DEF), while SCR stands for selective catalytic reduction. The SCR system uses DEF to help reduce nitrogen oxide emissions produced by diesel engines.
Do all diesel trucks use DEF?
No. DEF use depends on the vehicle’s emissions aftertreatment configuration, engine model, model year and applicable emissions standards. Not every diesel truck is equipped with an SCR system.
How can I check whether my engine supports UREA delete tuning?
Provide Diesel Spec with your engine manufacturer, model, model year and any available information about the emissions aftertreatment system. Our team can review the configuration and confirm which tuning services are available.
Can UREA delete tuning be performed on a truck used on public roads?
No, not for the service described here. Diesel Spec’s UREA Delete service is restricted to eligible off-highway or closed-course applications and cannot be performed on vehicles registered or certified for highway use.
