This OEM GM engine coolant bypass hose (Part No. 12589978) is designed to maintain proper coolant flow between engine components, helping regulate temperature and ensure efficient engine performance. It is an essential part of the vehicle’s cooling system, supporting consistent circulation and preventing overheating.
Manufactured to GM Genuine Parts standards, this bypass hose is engineered for precise fitment, durability, and long-lasting reliability. It is built to withstand high engine temperatures, coolant pressure, and daily operating conditions without cracking or leaking.
Ideal for cooling system repair or maintenance, this genuine GM component helps restore factory-level performance and ensures proper engine temperature control in compatible applications.
Key Features
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Durable Construction: Designed for long-term resistance against cracking, swelling, and wear.
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Heat & Pressure Resistant: Built to withstand high engine temperatures and coolant system pressure.
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Prevents Overheating: Helps ensure consistent engine cooling and prevents temperature imbalance.
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Factory-Grade Reliability: Matches OEM specifications for dependable performance and fitment.
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Efficient Coolant Flow: Maintains proper bypass circulation to support stable engine temperature regulation.
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Direct Replacement Fit: Engineered for precise installation in compatible GM applications using part number 12589978.
- OEM GM Quality: Manufactured to original equipment standards for reliable cooling system performance and long service life.
Specifications
- Brand: GM Genuine Parts
- Part Number: 12589978
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System: Engine Cooling System
- Product Type: Engine Coolant Bypass Hose
- Application: OEM Replacement Cooling Hose