Multiquip RE560900 DEF Line Backflow Line - OEM Replacement Part

The DEF Line Backflow Line prevents contamination of the diesel exhaust fluid system by ensuring one-way flow in the DEF delivery circuit on Multiquip WhisperWatt super silent generators. This line is a critical component in the emissions control system of John Deere-powered DCA series generators equipped with EGR and SCR technology, protecting the DEF tank and injection system from reverse flow that can cause crystallization, contamination, and system failures.

Designed specifically for Multiquip's 6-cylinder, 4-cycle, water-cooled, direct injection, turbocharged generators using John Deere 6068HFG series diesel engines, this backflow line maintains proper DEF system pressure and flow direction during operation and shutdown cycles. Failed or damaged DEF backflow lines can result in DEF system fault codes, reduced engine performance, and potential emissions compliance issues.

Compatible with the following Multiquip generator models:

• DCA70SSJU4F
• DCA150SSJU4F
• DCA220SSJU4F
• DCA300SSJU4F
• DCA300SSJU4F2
• DCA300SSJU4F3
• DCA300SSJU4F3PD

Genuine Multiquip OEM part, sold by an authorized dealer.