Dorman 904-7918 HD Solutions Aftertreatment Fuel Doser Hydrocarbon Injector Nozzle

The Dorman HD Solutions 904-7918 is a replacement aftertreatment fuel doser injector, also known as a hydrocarbon injector nozzle, designed to restore the critical dosing function of your heavy-duty vehicle's emissions system. When the original doser injector becomes clogged or fouled, it fails to properly inject fuel into the exhaust stream, disrupting the diesel particulate filter (DPF) regeneration cycle and triggering aftertreatment fault codes.

This replacement injector injects fuel directly into the exhaust stream during active regeneration cycles, raising exhaust temperatures to burn off accumulated soot and carbon deposits from the DPF. Restoring proper doser function is essential to maintaining emissions compliance and avoiding costly DPF replacements.

Key Features:

• Restores DPF Regeneration – Fixes aftertreatment issues caused by a clogged or failed injector that prevents proper downstream fuel dosing
• Direct OE Replacement – Drop-in replacement for worn or fouled original equipment hydrocarbon injector nozzles on select heavy-duty applications
• Durable Construction – Manufactured from quality materials engineered for reliable performance and an extended service life in demanding exhaust environments
• Dorman HD Solutions Engineering – Backed by Dorman's team of U.S.-based product engineers with over a century of automotive and heavy-duty parts expertise

The Dorman 904-7918 aftertreatment fuel dozer injector is an aftermarket-exclusive solution that gives fleet managers and owner-operators a cost-effective alternative to OE dealer parts, helping get vehicles back on the road quickly and efficiently.