Pacific Performance Engineering 119025200 Silicone Upper & Lower Coolant Hose Kit Orange

The Pacific Performance Engineering (PPE) 119025200 is a performance silicone upper and lower coolant hose kit engineered for the 2006–2010 GM 6.6L Duramax LBZ/LMM diesel engine. Factory coolant hose T-fittings are molded from rubber or plastic and are prone to cracking at the junctions over time, leading to coolant loss. The PPE silicone coolant hose kit is a direct bolt-on replacement designed to outlast and outperform the factory system.

Constructed from 5mm thick silicone — twice the wall thickness of the stock hose — and reinforced with 4-ply heat-resistant internal fibers, these hoses are built to handle the elevated pressures and temperatures of both stock and heavily modified Duramax platforms. TIG-welded, polished 304 stainless steel T-fittings replace the factory plastic units, eliminating a common failure point. The quick-connect/disconnect fittings are precision-machined from billet aluminum and 304 stainless steel for a secure, leak-free seal. Included T-bolt clamps and worm-drive fasteners lock the hoses in place for a factory-quality fit with superior performance.

Key Features:

• 5mm thick silicone construction — twice the thickness of factory hoses
• 4-ply heat-resistant internal fiber reinforcement
• TIG-welded, polished 304 stainless steel T-fittings
• Billet aluminum and stainless steel quick-connect/disconnect ends (LBZ/LMM)
• T-bolt clamps and worm-drive fasteners included
• Direct bolt-on installation — no cutting or modifications required
• Available in vibrant orange for a distinctive under-hood appearance
• Backed by a lifetime warranty
• Compatible with stock and modified Duramax 6.6L trucks

This kit includes both upper and lower hoses, providing everything needed for a complete coolant hose system upgrade. PPE part number 119025200 is the orange variant, designed as a long-lasting, high-performance replacement for the 2006–2010 GM 6.6L Duramax LBZ and LMM engines.