Multiquip M3424701004 DEF Tank Cover (KY) - OEM Replacement Part

The DEF tank cover protects the diesel exhaust fluid fill opening on Multiquip WhisperWatt generator sets, preventing contamination of the DEF system during operation and storage. This genuine OEM cover is engineered specifically for the DCA150SSJU4F model equipped with John Deere 6068HFG08 diesel engines featuring EGR and DEF emission control systems.

The DEF tank requires regular refilling during operation, and a properly sealing cover is critical to prevent moisture, debris, and diesel fuel contamination that can damage expensive emission control components. Per Multiquip operation manual M3844300204, the DEF tank must be completely filled before initial start-up and refilled as needed during continuous operation. The tank cap must be tightened securely after each refill to maintain system integrity and prevent DEF fluid expansion issues during engine heating cycles.

A damaged or missing DEF tank cover can allow contaminants into the emission system, potentially triggering automatic engine shutdown protection devices or causing DEF system failures. This OEM cover ensures proper fit and seal for reliable long-term performance.

Compatible Models:

• DCA150SSJU4F

Genuine Multiquip OEM part, sold by an authorized dealer.