PETERBILT 5579176 Diesel Exhaust Fluid Filter - DEF Pump Main Filter Kit

Manufacturer

PETERBILT

Features & Benefits

• Removes contaminants from diesel exhaust fluid and protects sensitive SCR dosing components
• Maintains consistent DEF flow and prevents injector deposits that disrupt emissions performance
• DEF filter kit includes replacement filter element and sealing components for routine service
• Service maintenance component supports proper SCR system operation and emissions compliance

Peterbilt Diesel Exhaust Fluid (DEF) Filter Kit

Protect the aftertreatment system with the Peterbilt Diesel Exhaust Fluid (DEF) Filter Kit. Installed in the DEF supply circuit, this filter removes contaminants and crystallized deposits before fluid reaches the dosing pump and injector. Maintaining clean DEF flow is critical for accurate dosing and efficient selective catalytic reduction (SCR) performance. The service kit includes the replacement filter element and sealing components required for routine maintenance, allowing technicians to restore proper filtration during scheduled service intervals. By ensuring clean fluid delivery to the emissions system, the Peterbilt 5579176 DEF filter kit helps maintain reliable SCR operation and prevents costly aftertreatment faults.