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Details
| Specification | Value |
|---|---|
| Brand | NRF |
| Thickness [mm] | 16 mm |
| Width [mm] | 520 mm |
| Height [mm] | 50 mm |
OE numbers (2)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—6394663524
- MERCEDES-BENZ—A6394663524
Where this part fits
Original-fit position for OE 6394663524.
About this product
Sourced from NRF, this oil cooler steering (31815) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Thickness [mm]: Silicone mm, Width [mm]: 520 mm, Height [mm]: 50 mm, Material: Steel, Cooling Type: Steel — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit MERCEDES-BENZ 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: 126034N, 30003684, 37G50030, 6394663524 and 4 more. Matching these numbers confirms a like-for-like replacement with no loss of function. NRF 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
About NRF
NRF, founded in 1927 in the Netherlands, is Europe's leading specialist manufacturer of cooling and climate control components. NRF specialises in radiators, condensers, evaporators, compressors, heater cores, and cooling fans. As an OE supplier to major manufacturers and with products tested to exceed factory specifications, NRF ensures reliable thermal management for all vehicle types. With nearly a century of cooling expertise and the largest product range in the sector, NRF is the first choice for heating, cooling, and air conditioning repairs.
Suitable cars
Equivalent products (6)
Oil Cooler Steering NRF 31815 — compatible car models
| Car models | MERCEDES-BENZ: VIANO (W639), VITO Bus (W639), VITO / MIXTO Van (W639) |
|---|---|
| Engines | 3.2 (639.711, 639.811, 639.813); 110 CDI (639.701, 639.703, 639.705); 110 CDI (639.601, 639.603, 639.605) |
| Year of manufacture | 2003 |
| Manufacturer article number (MPN) | 31815 |
| OE part numbers | 6394663524, A6394663524 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
NRF 31815 . Cooling Type: 1. Height [mm]: 50 mm. Material: 1. Thickness [mm]: 16 mm. Width [mm]: 520 mm
- 1x Oil Cooler Steering
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- 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 Oil Cooler Steering compatible with my car?
This Oil Cooler Steering fits MERCEDES-BENZ 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 NRF Oil Cooler Steering have?
This NRF Oil Cooler Steering has the following specifications: Thickness [mm]: 16 mm; Width [mm]: 520 mm; Height [mm]: 50 mm; Material: 1; Cooling Type: 1. Check the full specifications table above for complete details.
What OE part numbers does this Oil Cooler Steering replace?
This Oil Cooler Steering replaces OE part numbers: 6394663524, A6394663524. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Oil Cooler Steering cost?
This NRF Oil Cooler Steering is available for £71.99. Oil Cooler Steering prices vary depending on brand, specifications, and vehicle compatibility. NRF parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Oil Cooler Steering?
Regular inspection of your Oil Cooler Steering 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 Oil Cooler Steering?
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 Oil Cooler Steering fitted by a professional mechanic.
Can I use this part as a replacement for OE 6394663524?
Yes, this NRF Oil Cooler Steering is a direct replacement for OE part number 6394663524. 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 NRF 31815 the same as the NRF 31253?
No, while both are Oil Cooler Steering parts, they are different products. The NRF 31815 has Thickness [mm]: 16 mm, Width [mm]: 520 mm, Height [mm]: 50 mm. The NRF 31253 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.
