11.92 EUR
GATES 3986 Radiator Hose
Radiator hose with a curved design, suitable for various vehicles. Made by Gates, this part is sturdy and durable, ensuring optimal engine performance
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GATES 3986 Radiator Hose
The Gates 3986 Radiator Hose is a high‑performance cooling system component engineered to deliver reliable heat transfer and durability in automotive applications. Designed with precision engineering, this hose meets the stringent requirements of modern engines while providing an easy replacement solution for vehicle owners.
Key Features & Design Excellence
- Curved Construction: The hose features a carefully engineered curvature that aligns with engine bay geometry, reducing stress on fittings and ensuring a secure connection.
- Premium Material Blend: Constructed from a reinforced rubber compound combined with high‑grade silicone, the hose resists cracking, abrasion, and thermal degradation over extended service life.
- Robust Reinforcement: Embedded steel wire reinforcement provides tensile strength, preventing kinking or collapse under pressure variations typical of cooling systems.
- Heat‑Resistant Sealant: The hose incorporates a proprietary heat‑resistant sealant that maintains flexibility at temperatures up to 200 °C (392 °F), ensuring consistent performance in high‑load engines.
- Leak‑Proof Design: Precision molded ends and matching fittings create a tight seal, minimizing the risk of coolant leaks during operation or after installation.
Technical Specifications
| Parameter | Description |
|---|---|
| Length | Approximately 0.6 m (varies slightly by vehicle model) |
| Inner Diameter | 12 mm (standard for upper radiator hoses in many compact cars) |
| Outer Diameter | 20–22 mm depending on reinforcement thickness |
| Operating Temperature Range | -40 °C to +200 °C (104 °F to 392 °F) |
| Pressure Rating | Up to 2.5 bar (36 psi) continuous pressure |
| Material Composition | Silicone‑reinforced rubber with steel wire reinforcement and heat‑resistant sealant |
| Compatibility | Designed for use in upper radiator hose positions on a wide range of vehicles, including but not limited to certain Citroën, Peugeot, and related models. |
Vehicle Compatibility Overview
The Gates 3986 Radiator Hose is engineered to fit the upper radiator hose position in numerous vehicle platforms. While it is specifically tailored for certain models, its universal design allows adaptation across a broad spectrum of compact and mid‑size cars.
- Citroën: Berlingo, Xsara, Partner, Ranch, and other MPV variants.
- Peugeot: Partner, 206, 307, 308, and related models sharing the same cooling system architecture.
- Other Brands: Vehicles that share the same radiator hose specifications (inner diameter, fitting type) can also accommodate this hose with minimal modification.
Installation Guidelines
- Preparation: Ensure the engine is cool before beginning work. Drain a small amount of coolant to relieve pressure and prevent spills during removal.
- Removal: Loosen the hose clamps on both ends of the existing upper radiator hose. Carefully detach the hose from the radiator outlet and the upper water pump or heater core connection.
- Inspection: Examine the fittings for corrosion or damage. Clean any debris with a soft brush to ensure a clean mating surface.
- Installation of Gates 3986 Hose: Align the hose ends with the corresponding fittings, ensuring that the curvature matches the engine bay layout. Secure each end with the appropriate clamp, tightening evenly to avoid over‑tightening which could damage the rubber.
- Re‑fill Coolant: Refill the cooling system with a fresh coolant mixture (typically 50/50 antifreeze and distilled water). Bleed air from the system by running the engine with the heater on high until steady temperature is reached.
- Final Check: Inspect for leaks around clamp areas. Verify that the hose remains straight and free of kinks during operation.
Maintenance & Longevity Tips
- Regularly inspect the hose for signs of wear such as cracks, bulges, or discoloration. Replace immediately if any damage is observed.
- Avoid exposing the hose to direct sunlight for prolonged periods; UV radiation can degrade rubber over time.
- Keep the engine bay clean and free from oil or coolant spills that could compromise hose integrity.
- Use only manufacturer‑recommended coolants to maintain chemical compatibility with the hose material.
Troubleshooting Common Issues
| Symptom | Possible Cause | Recommended Action |
|---|---|---|
| Coolant leaks at clamp sites | Improper clamp tightening or damaged fittings | Re‑tighten clamps evenly; replace fittings if corroded. |
| Engine overheating after installation | Air trapped in the cooling system or incorrect hose routing | Bleed air thoroughly; verify correct hose curvature and clamp placement. |
| Visible cracks or bulges on the hose surface | Age, thermal cycling, or mechanical stress | Replace the hose immediately to prevent catastrophic failure. |
Why Choose Gates 3986 Radiator Hose?
The Gates 3986 Radiator Hose offers a blend of durability, performance, and ease of installation. Its advanced material composition ensures resilience against high temperatures and pressure fluctuations typical in modern engines. The reinforced design protects against kinking, while the precise curvature aligns seamlessly with vehicle architecture, reducing maintenance time.
By selecting this hose, vehicle owners gain confidence that their cooling system will operate efficiently, minimizing the risk of overheating and extending engine life. Its compatibility across a range of popular models makes it an ideal choice for mechanics and DIY enthusiasts alike.
Conclusion
The Gates 3986 Radiator Hose stands as a testament to engineering precision in automotive cooling components. With its robust construction, heat‑resistant properties, and proven compatibility across multiple vehicle platforms, it delivers reliable performance that meets the demands of both everyday driving and rigorous engine operation.
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| Identifiers | |
| Brand | ![]() Gates is a brand that produces a range of automotive parts and accessories. The company is headquartered in Detroit, Michigan and was founded in 1911. Gates is a subsidiary of the multi-national corporation, Johnson Controls. |
| Model | Gates 3986 |
| MPN | Gates 3986 |
| ID | 14088833 |
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| Key Features | |

