Galvanized Reducing Bush 40-20mm is a specialized mechanical component used to connect or adapt shafts or fittings of different diameters. This reducing bush allows a smooth transition from a 40mm outer diameter to a 20mm inner diameter, providing a stable and secure join between parts with these specific sizes. Its galvanized finish offers enhanced resistance against corrosion, suitable for environments where moisture or rust might be a concern.
Typically, reducing bushes are installed in rotating or fixed assemblies where precise shaft alignment and tight fitment are critical. When replacing or upgrading the old bush, it is important to compare the original part’s dimensions to ensure compatibility with your shafts or housings. The size difference accommodated by this unit — reducing from 40mm to 20mm — is its defining feature and the key search criterion for buyers needing this exact configuration.
This listing refers to a new, unused part with SKU BB-404291, ensuring you receive an unused component ready for installation. Given the absence of vehicle-specific details, this part can serve in various mechanical repairs or projects demanding a 40-20mm reduction bush.
- Function: adapts larger 40mm shaft or fitting down to 20mm
- Condition: new galvanized reducing bush
- SKU for reference: BB-404291
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.





