Ruwag Cup Washer 4.2mm (10) is a set of ten precision washers designed for automotive use where a 4.2mm cup washer is specified. This type of washer is typically employed to distribute the load of a threaded fastener like a bolt or screw, helping to prevent damage to the assembly surface and ensuring a secure fit.
This listing features a new part supplied under the product SKU BB-408365. The washers suit vehicles or mechanical assemblies that require this exact size and type, ensuring buyers can compare the washer diameter and style with their original parts before purchase.
Cup washers are commonly found in fastening points where vibration or wear could loosen hardware. Their curved profile helps maintain pressure evenly, which can be critical in automotive repairs or restorations involving engine components, body fittings, or accessory mounts.
When selecting this set, confirm the 4.2mm dimension matches your existing washers or technical specifications. For orders needing tailored advice or parts compatibility checks, contacting the sales desk or submitting a request for a part can provide additional assurance before buying.
Need help matching this item to your vehicle? Use Vehicle Parts Finder, Request a Part or Platinum Sales Desk with your VIN, engine number, part number or clear photos.
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