Multiquip Y0191700480 Blowby Hose DENYO - OEM Replacement Part for Super Silent Generators

The blowby hose routes combustion gases that escape past the piston rings back into the engine intake system, preventing pressure buildup in the crankcase and reducing emissions on super silent diesel generators. This hose is a critical emissions control component on DENYO-branded Multiquip generators, where maintaining proper crankcase ventilation ensures engine longevity and compliance with EPA standards.

On the DCA220SSJU4F generator powered by the John Deere 6068HFG09 turbocharged diesel engine with EGR, DOC, and SCR systems, the blowby hose works alongside the emissions control components to manage crankcase pressure. A deteriorated or cracked blowby hose can lead to oil leaks, increased emissions, rough engine performance, or visible smoke from the crankcase breather. Regular inspection during the oil change intervals—when checking the 31-liter (8.18 gallon) oil capacity—allows technicians to identify wear before failure occurs.

This hose is specifically designed for the WhisperWatt super silent generator series, where maintaining sealed systems is essential for both emissions compliance and the sound-dampening enclosure integrity.

Compatible models include:

• DCA220SSJU4F

Genuine Multiquip OEM part, sold by an authorized dealer.