Multiquip 8981202622 DEF Tank Filler Cap Assembly - OEM Replacement Part

The DEF (Diesel Exhaust Fluid) tank filler cap assembly seals and protects the DEF fill port on Multiquip Super Silent generators, preventing contamination of the emission control system. This genuine OEM cap assembly is a critical component for maintaining proper Selective Catalytic Reduction (SCR) system operation on diesel generators equipped with Tier 4 Final emissions compliance.

The DEF tank filler cap must maintain a secure seal to prevent debris, moisture, and contaminants from entering the DEF tank, which can cause SCR system malfunctions, reduced emissions performance, and potential engine derate conditions. Regular inspection of the cap assembly for cracks, damaged threads, or worn gaskets is essential during routine maintenance intervals.

This cap assembly is designed specifically for the DCA400SSI4F series Super Silent generators and ensures proper venting while maintaining system integrity during equipment operation and storage.

Compatible with the following Multiquip generator models:

• DCA400SSI4F
• DCA400SSI4F3B
• DCA400SSI4F3PD

Genuine Multiquip OEM part, sold by an authorized dealer.