Details
- Diameter [mm]
- 70 mm
- Width [mm]
- 26 mm
- Tensioner Pulley Actuation
- AU
Compare 30 brands — check fitment and order online
OE part number 100477 is a V-ribbed belt belt tensioner compatible with ALFA ROMEO, AUDI and other makes. Available from 30 brands, priced from £29.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
V-ribbed belt belt tensioner OE 100477 prices range from £29.99 to £60.99, with 30 brands offering compatible parts.
Original installation position for OE 100477. The red ring marks where this part installs on the vehicle.

OEM workshop diagram — sourced from manufacturer parts catalogue.
OE 100477 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| BMW | 3 (E46), 3 Coupe (E46), 3 Touring (E46), 5 (E39) +6 |
Choose a brand to see their compatible parts for OE 100477.
Products matched to OE number 100477.
| Attribute | Value |
|---|---|
| Outer Diameter [mm] | 86 |
| Filtro tipas: | filtro įdėklas |
| Height [mm] | 60 |
| Inner Diameter 2 [mm] | 21 |
| Outer Diameter 1 [mm] | 108 |
| Thread Size | M20x1.5 |
| Supplementary Article/Supplementary Info | 35 |
| Diameter 4 [mm] | 72 |
| Diameter [mm] | 80,5 |
| Net weight [kg] | 0,32 |
Common original equipment numbers linked to stocked alternatives.
OE (Original Equipment) number 100477 is a manufacturer's reference code for V-ribbed belt belt tensioner used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 30 compatible aftermarket brands that match the same specification — often at a lower price than the original. All parts listed above are verified to match OE 100477.