Genuine Mercedes 651 200 12 51 Coolant Pipe OEM Engine Cooling

The Genuine Mercedes-Benz 651 200 12 51 is an OEM replacement coolant pipe designed for Mercedes-Benz vehicles equipped with the OM651 diesel engine family. As a factory-original part, it meets the exact fit, form, and function specifications set by Mercedes-Benz engineers — ensuring proper coolant flow and reliable performance throughout the engine cooling system.

Key Features:

• OEM Genuine Mercedes-Benz part — not aftermarket or remanufactured
• Designed for use with the OM651 four-cylinder diesel engine
• Engineered for precise fitment and leak-free sealing in the cooling circuit
• Manufactured to Mercedes-Benz factory tolerances and material specifications
• Maintains proper coolant routing to prevent overheating and engine damage

Replacing a worn, cracked, or leaking coolant pipe with a genuine OEM component helps maintain the integrity of the entire cooling system. Using factory-original parts ensures long-term durability and compatibility without the risk of fitment issues common with aftermarket alternatives.

Part Number: 651 200 12 51 (also referenced as 6512001251)