Pacific Performance Engineering 119020011 Performance Silicone Engine to Cab Coolant Hose

The Pacific Performance Engineering (PPE) 119020011 is a performance silicone engine-to-cab coolant hose designed as a direct-fit replacement for GM 6.6L Duramax diesel engines. Built with durable 5mm thick silicone — twice the wall thickness of the factory hose — this replacement hose delivers improved durability and heat resistance over the OEM part it replaces.

Key Features:

• 5mm thick silicone construction — significantly thicker than the factory hose for long-lasting performance
• 1-ply heat-resistant internal fibers for added strength against pressure and temperature
• Factory-fit design — installs in the same location as the OEM hose with no cutting or modifications required
• 24mm (15/16") outside diameter for precise fitment
• Replaces GM OEM P/N: 20984280
• Sold individually

Compatible Accessories:

• Best paired with PPE hose clamp P/N 515005100
• Compatible with PPE P/N 515004100 Full Stainless Steel Hose Clamps
• Use with PPE P/N 119020009 GM Stainless Steel Heater Hose Connector (1999–2016)

The PPE 119020011 is an ideal upgrade for Duramax owners looking to replace aging or cracked factory coolant hoses with a more resilient silicone alternative. Its precision fit and quality construction make it a straightforward, reliable replacement for the GM 6.6L Duramax LML cooling system.