PACCAR 2028048 Diesel Exhaust Fluid (DEF) Doser Gasket

Manufacturer

PACCAR

Features & Benefits

• Seals the DEF doser valve to the exhaust stream to prevent urea leaks and pressure loss
• Replaces worn gaskets on Paccar MX series aftertreatment systems with a factory-perfect fit
• Keeps the SCR system functional to ensure the vehicle stays in EPA compliance
• Protects the decomposition tube from expensive damage caused by escaping hot exhaust gases
• Eliminates the risk of sensor-triggered engine derates by maintaining a leak-free DEF system

PACCAR Diesel Exhaust Fluid (DEF) Doser Gasket

Prevent damaging exhaust leaks and ensure the efficiency of your aftertreatment system with the PACCAR Diesel Exhaust Fluid (DEF) Doser Gasket. Specifically designed for the DEF dosing valve, this high-temperature seal ensures the valve remains firmly seated against the decomposition tube to maintain proper pressure. The PACCAR 2028048 is engineered to withstand the corrosive properties of urea and intense exhaust heat without degrading or losing its sealing integrity. Skipping a fresh gasket during DEF service often triggers "check engine" lights or engine derates, making this genuine replacement a vital safeguard against unexpected limp-mode conditions.