Dinex DEF Injectors deliver precise Diesel Exhaust Fluid atomization into the exhaust stream?a critical function for efficient NOx reduction in EPA 10-21 SCR systems on Class 6-8 trucks and buses.;;The DEF injector receives fluid from the dosing pump and sprays it in a fine, uniform mist into the exhaust upstream of the SCR catalyst. Proper atomization is essential: uneven or incomplete DEF distribution leads to poor NOx conversion efficiency, DEF crystallization inside the exhaust system, and potential damage to the SCR substrate?all resulting in costly fault codes and downtime.;;Dinex DEF injectors are OE-tested direct replacements, engineered to deliver the precise spray pattern, flow rate, and pressure required by your vehicle's aftertreatment system. Built with corrosion-resistant materials to withstand the harsh DEF environment, our injectors deliver long service life and reliable performance.;;Available for all major truck and bus makes and models?including Freightliner, Peterbilt, Kenworth, Volvo, Mack, International, and Cummins-equipped platforms?Dinex DEF injectors provide comprehensive coverage across EPA 10, 17, and 21 systems. Combined with our DEF pumps, filters, and the rest of the Dinex mechatronics range, source your entire DEF system service needs from one trusted supplier.

• OE-tested precision DEF atomization
• direct replacement for EPA 10-21 SCR systems
• resists crystallization
• optimizes NOx conversion efficiency
• full Class 6-8 truck and bus coverage