Silicone Hump Hose Coupler ~4" ID Charge Air / Coolant - Used

Application: Silicone hump-style coupler hose suitable for charge air cooler (CAC) / turbo boost piping or heavy-duty coolant bypass service on marine and industrial diesel engines. Blue reinforced silicone with orange/red high-temp inner liner and multi-ply fabric reinforcement. Estimated ~4 in ID x ~4 in long — verify dimensions before ordering. Condition: Used take-off. Exterior has typical shop soil and light scuffs; inner liner appears clean and intact with no visible cracks or heat damage. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.