Description
Maintain your Mercedes-Benz cooling efficiency with the Genuine Circulation Pump Down Hose A4478320823. This OEM hose connects the circulation pump to key parts of the cooling system, allowing consistent coolant flow and effective temperature regulation across the engine.
Made from high-quality, heat- and pressure-resistant rubber, the hose provides exceptional sealing performance under demanding driving conditions. Engineered to Mercedes-Benz factory standards, it offers a perfect fit and restores your cooling system’s original integrity.
Replacing a cracked or leaking hose helps prevent coolant loss, overheating, and engine damage — keeping your vehicle running smoothly and efficiently.
Key Features:
Genuine Mercedes-Benz OEM part number: A4478320823
Circulation pump down hose for coolant transfer
Heat- and pressure-resistant construction for durability
Ensures leak-free coolant circulation
Direct OEM replacement for exact fitment
Prevents overheating and maintains engine performance
Built for long service life and reliability
Compatible With:
Fits various Mercedes-Benz V-Class (W447), Vito, and Sprinter models equipped with corresponding cooling systems. Confirm compatibility using part number A4478320823 before purchase.
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