06-10 Duramax LBZ LMM PPE Coolant Bypass Tube - Water Pump to Thermostat Housing Hats But the factory Allison transmissions

But the factory Allison transmissions tend to have issues coping with heavy towing and hauling or even mild performance upgrades not to mention serious struggles with high performance modifications

3/8” and 1/2" NPT adapters

fully customizable backgrounds and gauge colors

denser air for optimal efficiency

60 HP & 200 lb-ft

06-10 Duramax LBZ LMM PPE Coolant Bypass Tube - Water Pump to Thermostat Housing Hats But the factory Allison transmissionsCoolant Bypass Tube Water Pump to Thermostat Housing Polished 304 Stainless Steel Specifically designed for use with the factory water pump. Fully polished 304 stainless steel construction looks great and prevents corrosion. The OEM mild steel pipe rusts and eventually leaks. Features: Fully polished 304 stainless steel CNC machined tube end Comes with two Viton O rings