Hose Head To Thermostat (N45, N45N, N42, N46) (BMW 1 Series E81/E87 / 3 Series E46 / E90 / X3 E83)

R781.80

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Hose Head To Thermostat (N45 N45N N42 N46) (BMW 1 Series E81/E87 / 3 Series E46 / E90 / X3 E83) is designed for the specified BMW engine models. Check compatibility before installation

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Hose Head To Thermostat (N45 N45N N42 N46) (BMW 1 Series E81/E87 / 3 Series E46 / E90 / X3 E83) is a mechanical component designed to connect the thermostat housing to the coolant hose system in selected BMW models. This hose head plays a crucial role in routing coolant through the thermostat to regulate engine temperature effectively. Proper functioning of this part supports engine thermal management, helping to maintain optimal performance and prevent overheating.

This listing suits several BMW engine types including the N45, N45N, N42, and N46. It is compatible with various popular BMW models, such as the 1 Series E81 and E87, 3 Series E46 and E90, and the X3 E83. Buyers should compare this component closely with their existing hose head, especially noting the fit to the thermostat and hose diameter to ensure compatibility with their specific engine and model.

When sourcing this part, verify the engine code and vehicle model to match it correctly to your cooling system layout. The hose head interfaces directly between the thermostat and the head coolant passage and requires precise alignment to avoid leaks or cooling inefficiencies.

  • Fitment for BMW engine models N45, N45N, N42, N46
  • BMW 1 Series E81/E87, 3 Series E46/E90, X3 E83 coverage
  • Critical for coolant flow management through the thermostat housing

If this repair may need matching clips, brackets, lights, panels or more than one part, check more Thermostat, Quick Repair Bundle or Request a Part before ordering.

Frequently Asked Questions

Confirm fitment before ordering
Quick answers before you order. If anything is unclear, confirm fitment first using your VIN or part number and avoid mistakes.
Helpful product answers
Which BMW models are compatible with the Hose Head To Thermostat (N45, N45N, N42, N46)?
This hose head fits BMW 1 Series E81 and E87, 3 Series E46 and E90, as well as the X3 E83 models. It is designed specifically for engines with N45, N45N, N42, and N46 configurations. Always verify your vehicle’s engine code before ordering to ensure compatibility.
What is the primary function of the Hose Head To Thermostat in these BMW models?
This component connects the thermostat housing to the cooling system hose, ensuring proper coolant flow regulation. It helps maintain optimal engine temperature by facilitating coolant circulation. A faulty hose head can lead to overheating or coolant leaks, so timely replacement is crucial.
Are there any common installation mistakes to avoid with this hose head?
A frequent error is not securing the hose clamps tightly, which can cause coolant leaks and engine overheating. Always ensure clamps are properly tightened and inspect for any cracks or damage on the hose before installation. Using the correct tools and following the vehicle’s service manual will help avoid these issues.
Is the condition of this Hose Head To Thermostat specified?
The product condition is not specified in the listing. For assurance on quality and warranty, it’s best to contact Brits Brothers™ directly or consult with their Trade Partners. They can provide detailed information about the part’s condition and suitability for your vehicle.
How can I request this part or get further assistance?
You can request the part or inquire about availability through Brits Brothers™ by visiting their Request a Part page. For direct communication, WhatsApp support is also available at https://wa.me/27735925563, providing quick responses for your queries.