Ruwag Turbo Screw BB BB 4X4 0mm (400) is listed as an auto-part option. Confirm fitment, part number and compatibility before purchase, especially where vehicle-specific matching is required.
Ruwag Turbo Screw 4x40mm (400) is a new mechanical component designed for automotive use. This screw, identified by SKU BB-403311, serves as a fastening element in turbo-related assemblies or other vehicle parts where precision and secure fixing are required. It is specifically sized at 4x40mm, which denotes the diameter and length, key dimensions to match with the original screw in a vehicle’s turbo or related mechanical systems.
When replacing a turbo screw, it is important to compare this part with the old screw in terms of length, diameter, and thread type. The correct size ensures proper tightening without damaging surrounding components, maintaining the integrity of the turbo mounting or other attachment points. This listing is for a genuine new part from Ruwag, intended for buyers seeking a direct replacement for their vehicle’s worn or damaged turbo screw.
Considerations before purchase include verifying the original screw size against this 4x40mm dimension to ensure compatibility. If unsure, consulting a professional or submitting a Request a Part can help confirm the right match. Proper selection of this part supports secure mechanical joins crucial to turbocharger stability and performance.
- Correct sizing for turbo or related fittings
- New condition guarantees no prior wear
- SKU BB-403311 identifies this specific screw model
If this repair may need matching clips, brackets, lights, panels or more than one part, check Quick Repair Bundle, Request a Part or Platinum Sales Desk before ordering.

