Pacific Performance Engineering 119021010 Performance Silicone EGR to Cab Coolant Hose

The Pacific Performance Engineering (PPE) 119021010 is a performance silicone EGR-to-cab coolant hose designed as a direct-fit replacement for the GM 6.6L Duramax LMM engine. Built from 5mm thick silicone with 1-ply heat-resistant internal fibers, this hose is engineered to outlast the factory rubber hose and resist the harsh thermal cycling of a diesel cooling system.

Over time, the OEM rubber coolant hose can dry out, crack, and leak — a common issue on aging LMM Duramax trucks. This PPE silicone upgrade installs to factory specifications for a clean, precise fit with no modifications required. It is a direct replacement for GM equivalent part number 98004176.

Key Features:

• Durable 5mm thick performance silicone construction
• 1-ply heat-resistant internal fibers for added strength and temperature resistance
• 24mm (15/16") O.D. for factory-correct sizing
• Designed for direct, factory-fit replacement — no modifications needed
• Replaces GM OEM Part Number: 98004176
• Compatible with PPE hose clamp P/N 515005100
• Compatible with PPE stainless steel heater hose connector P/N 119020009 (1999–2016 GM)

Upgrade your diesel cooling system with confidence. This PPE silicone coolant hose delivers long-lasting reliability and a professional-grade finish to your Duramax LMM cooling system repair or maintenance project.