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Details
| Specification | Value |
|---|---|
| Brand | THERMOTEC |
| MPN | dnr074tt |
| Inner Diameter 1 [mm] | 23 mm |
| Inner Diameter 2 [mm] | 21 mm |
| Hose Length [mm] | 500 mm |
OE/OEM numbers (1)
Search by this OE number to find compatible parts
- RENAULT / RENAULT KOREA—7700413938
Where this part fits
Original-fit position for OE 7700413938. The red ring marks where this part installs on the vehicle.
About this product
The THERMOTEC Heater Hose (DNR074TT) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Colour: Ceramic, Material: 33, Inner Diameter 1 [mm]: 23 mm, Inner Diameter 2 [mm]: 21 mm, Hose Length [mm]: 500 mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit RENAULT models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 7700413938. Matching these numbers confirms a like-for-like replacement with no loss of function. THERMOTEC is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Heater Hose buying guide
Why replace this part?
Heater hoses carry hot coolant from the engine to the heater core and back. A split heater hose causes coolant loss, loss of cabin heating, and engine overheating if the leak is significant enough to deplete the coolant level.
Signs you need a replacement
- Loss of cabin heat
- coolant leak inside or under the car
- sweet coolant smell inside the passenger compartment
- engine overheating
- soft or spongy hose texture when squeezed
When to replace
Every 4–5 years or 60,000–80,000 miles. Rubber hoses harden with age — inspect annually for cracks, swelling, or softness at the fittings.
Suitable cars
No equivalent parts found.
Heater Hose THERMOTEC DNR074TT — compatible car models
| Car models | RENAULT: Megane I Kombi van (KA) |
|---|---|
| Engines | 1.4 (KA0D) |
| Year of manufacture | 2000-2003 |
| Manufacturer article number (MPN) | DNR074TT |
| OE part numbers | 7700413938 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
THERMOTEC dnr074tt . Colour: 7. Hose Length [mm]: 500 mm. Inner Diameter 1 [mm]: 23 mm. Inner Diameter 2 [mm]: 21 mm. Material: 33
- 1x Heater Hose
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Heater Hose compatible with my car?
This Heater Hose fits RENAULT vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this THERMOTEC Heater Hose have?
This THERMOTEC Heater Hose has the following specifications: Colour: 7; Material: 33; Inner Diameter 1 [mm]: 23 mm; Inner Diameter 2 [mm]: 21 mm; Hose Length [mm]: 500 mm. Check the full specifications table above for complete details.
What OE part numbers does this Heater Hose replace?
This Heater Hose replaces OE part numbers: 7700413938. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Heater Hose cost?
This THERMOTEC Heater Hose is available for £17.99. Heater Hose prices vary depending on brand, specifications, and vehicle compatibility. THERMOTEC parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Heater Hose?
Regular inspection of your Heater Hose is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Heater Hose?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Heater Hose fitted by a professional mechanic.
Can I use this part as a replacement for OE 7700413938?
Yes, this THERMOTEC Heater Hose is a direct replacement for OE part number 7700413938. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the THERMOTEC DNR074TT the same as the THERMOTEC DN0506TT?
No, while both are Heater Hose parts, they are different products. The THERMOTEC DNR074TT has Colour: 7, Material: 33, Inner Diameter 1 [mm]: 23 mm. The THERMOTEC DN0506TT may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
