Description of the pretensioner Mercedes W639
The pretensioner Mercedes W639 is an original Mercedes-Benz component for the rear centre seat belt, reference A9018601169. The listing also identifies chassis W906 as an application. This component forms part of the vehicle’s safety system. Moreover, the source description states conformity with factory specifications. It is a used part. Therefore, check its identification and intended application before selecting this item for your vehicle.
Compatibility of the pretensioner Mercedes W639
The stated applications cover Mercedes chassis W639 and W906, in the rear centre position. However, the chassis designation alone does not establish compatibility with your particular vehicle. First, compare the OEM reference with the number on the existing component. Also, send the VIN to confirm the application before ordering. This helps clarify configuration differences without assuming compatibility with other versions. The supplied information does not identify engines or production years for this component.
Technical data
- Brand: Mercedes-Benz.
- Listed chassis: W639 and W906.
- OEM number: A9018601169.
- Interchangeable numbers: A9018601169, A 901 860 11 69.
- Vehicle location: rear.
- Position stated in the description: centre.
- Part type: seat belt pretensioner.
- Condition: used.
- Category: seat belts and parts.
The references include both continuous and spaced presentations of the number. Therefore, account for that formatting difference when comparing the identification. Moreover, check the stated centre position to avoid confusing this item with components from other seating positions.
Condition and warranty
The photographs show the actual advertised part. However, the supplied information gives neither test results nor a warranty period. Ask about the condition and applicable terms before purchasing. Because this component belongs to a safety system, seek assessment and installation by a qualified professional. Also, do not interpret the description as confirmation of the condition of your vehicle’s complete safety system.
Shipping and returns
The price includes 23% VAT. Moreover, shipping is free within mainland Portugal. Payment is by bank transfer. Check the shipping conditions before placing your order. Finally, read the returns information to understand the conditions applicable to your purchase.











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