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Febi 37721 Radiator Coolant Hose
| Brand | Febi 37721 |
|---|---|
| Coolant Hose / Pipe Direction | from thermostat to radiator |
| Length (mm) | 385.0 |
| Material | EPDM |
| Material | Polyester |
| Fits | BMW · 3 vehicles |
EPDM construction. Resists heat and coolant exposure for dependable hose performance.
Polyester reinforcement. Adds strength and helps the hose hold its shape under pressure.
Radiator coolant hose. Carries coolant through the cooling system with a direct-fit design.
Cross-references 11 53 3 400 207 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Radiator Coolant Hose for BMW X3
Febi 37721 is a radiator coolant hose built for the cooling circuit between the thermostat and radiator. It is specified for 2004-2006 BMW X3 applications and uses EPDM and polyester construction for coolant-system service. This Febi 37721 hose is a direct-fit replacement for the listed BMW X3 years and cooling path.
Key Features
- Radiator coolant hose for the thermostat-to-radiator route
- EPDM rubber with polyester reinforcement
- 385 mm length for the listed application
- Fits 2004-2006 BMW X3, N/A
- Febi 37721 part number for ordering and catalog lookup
Product Details
This hose is engineered for coolant transfer in the BMW X3 cooling system, carrying coolant from the thermostat housing to the radiator. EPDM is commonly used in engine-cooling service because it handles heat and coolant exposure well, while the polyester reinforcement adds structure for stable routing and fit. If you are replacing a leaking or deteriorated BMW X3 radiator coolant hose, Febi 37721 matches the listed length and flow direction for the specified vehicles. This part cross-references BMW 11 53 3 400 207 for the same application.
Common Issues It Can Address
- Coolant leaks at the thermostat-to-radiator hose run
- Cracking, swelling, or softening of the original hose material
- Loss of coolant caused by aged hose connections
- Cooling-system service on a 2004-2006 BMW X3
- Incorrect hose length or routing during replacement
Installation Notes and Tips
Verify the hose routing before installation and confirm the thermostat-to-radiator path matches the removed part. Inspect adjoining clamps, thermostat necks, and radiator fittings for wear or residue before assembly. After installation, refill and bleed the cooling system according to BMW service procedures, then check for leaks at operating temperature.
Quality Assurance
Febi supplies aftermarket replacement parts with application-specific fitment data for European vehicles. Febi 37721 is cataloged for the listed BMW X3 years and cooling-system configuration.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | BMW | X3 | N/A | Additional information: from thermostat to radiator; Length 1 (mm): 385; Material: EPDM (ethylene propylene diene Monomer (M-class) rubber) / Polyester; from thermostat to radiator |
| 2005 | BMW | X3 | N/A | Additional information: from thermostat to radiator; Length 1 (mm): 385; Material: EPDM (ethylene propylene diene Monomer (M-class) rubber) / Polyester; from thermostat to radiator |
| 2004 | BMW | X3 | N/A | Additional information: from thermostat to radiator; Length 1 (mm): 385; Material: EPDM (ethylene propylene diene Monomer (M-class) rubber) / Polyester; from thermostat to radiator |
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