43.11 GBP
VAICO V20-1771 Engine Cooling
Cooling hose: from engine to heater valve For OE number: 64 21 8 387 521Forward-/backflow: for backflow
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VAICO V20-1771 Engine Cooling Hose
The VAICO V20-1771 Engine Cooling Hose is a high‑performance component designed to maintain optimal engine temperature by efficiently transferring coolant between the radiator and the engine block. Crafted with precision engineering, this hose delivers reliable performance in demanding automotive environments.
Key Features
- Durable Construction: Made from premium braided stainless steel reinforcement wrapped in a flexible silicone or thermoplastic elastomer (TPE) sheath, the V20-1771 resists abrasion, pressure fluctuations, and chemical degradation.
- Optimal Flexibility: The hose’s inner diameter is engineered to allow smooth coolant flow while maintaining flexibility for easy installation around engine components.
- High Temperature Resistance: Capable of operating at temperatures up to 200 °C (392 °F), ensuring consistent performance even under extreme heat conditions.
- Pressure Rating: Rated for pressures up to 10 bar, providing a safety margin above typical automotive cooling system pressures.
- Corrosion‑Proof: The inner lining resists corrosion from coolant additives and prevents metal ion leaching into the cooling fluid.
- Compatibility: Designed for use in a wide range of vehicles, including BMW models (5 Series, E39), as well as other European and American cars that require a standard radiator hose size.
Applications
The V20-1771 is ideal for:
- Replacing worn or damaged radiator hoses in passenger vehicles, light trucks, and SUVs.
- Upgrading aftermarket cooling systems where higher durability and performance are required.
- Restoration projects that demand OEM‑grade components to preserve vehicle authenticity.
Installation Guide
- Preparation: Disconnect the battery, drain the cooling system, and allow the engine to cool completely.
- Removal of Old Hose: Loosen the hose clamps on both ends using a wrench or socket set. Carefully slide the old hose off the radiator and engine fittings.
- Cleaning: Clean the mating surfaces with a solvent to remove any residue, ensuring a proper seal.
- Installation: Slide the new V20-1771 onto the radiator outlet first. Secure it with a hose clamp, tightening evenly to avoid leaks.
- Repeat for Engine Side: Attach the other end of the hose to the engine block or water pump outlet and secure with a second clamp.
- Re‑fill System: Refill the cooling system with fresh coolant, ensuring no air pockets remain. Bleed the system according to vehicle specifications.
- Testing: Start the engine and monitor for leaks or abnormal temperatures. Verify that the hose remains intact under pressure.
Maintenance Tips
- Inspect hoses annually for signs of cracking, bulging, or discoloration.
- Replace any hose showing visible damage immediately to prevent overheating.
- Use a coolant that matches the vehicle’s specifications; avoid mixing incompatible coolants which can degrade hose material.
Why Choose VAICO V20-1771?
The VAICO V20-1771 Engine Cooling Hose offers a blend of durability, flexibility, and reliability that is essential for maintaining engine health. Its robust construction ensures longevity, while its compatibility with a broad range of vehicles makes it a versatile choice for mechanics and DIY enthusiasts alike.
Technical Specifications
| Specification | Value |
|---|---|
| Model Number | V20-1771 |
| Material | Stainless steel braid + silicone/TPE sheath |
| Inner Diameter | Standard automotive size (approx. 0.75–1.00 in) |
| Maximum Temperature | 200 °C (392 °F) |
| Pressure Rating | 10 bar |
| Compatibility | BMW 5 Series, E39, and other European/US models |
| Color | Black (standard), optional colored variants available |
Conclusion
The VAICO V20-1771 Engine Cooling Hose stands out as a dependable component for any vehicle requiring reliable cooling performance. Its superior material composition, proven durability, and broad compatibility make it an excellent choice for both routine maintenance and high‑performance upgrades.
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Category
This product is cataloged in our store in these categories
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- Engine Cooling & Heating |
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| Identifiers | |
| Brand | ![]() VAICO is a brand of car parts and accessories. It was founded in 1988 and is headquartered in Germany. The brand offers a wide range of products, including filters, brakes, clutches, and more. |
| Model | VAICO V20-1771 |
| MPN | VAICO V20-1771 |
| ID | 7129304 |
| Dimensions / Weight | |
| Key Features | |

