Compare 20 brands — check fitment and order online
OE part number 100021 is a V-ribbed belt belt tensioner compatible with ABARTH, AC and other makes. Available from 20 brands, priced from £49.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
V-ribbed belt belt tensioner OE 100021 prices range from £49.99 to £56.99, with 20 brands offering compatible parts.
Original installation position for OE 100021. The red ring marks where this part installs on the vehicle.

OEM workshop diagram — sourced from manufacturer parts catalogue.
OE 100021 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| RENAULT | CLIO II (BB, CB) |
| VW | GOLF III (1H1), GOLF II (19E, 1G1), PASSAT B3/B4 Variant (3A5, 35I), PASSAT B3/B4 (3A2, 35I) +2 |
| SEAT | TOLEDO I (1L2), IBIZA II (6K1), CORDOBA (6K1, 6K2) |
Choose a brand to see their compatible parts for OE 100021.
Products matched to OE number 100021.
| Attribute | Value |
|---|---|
| Voltage [V] | 14,3 |
| Manufacturer Restriction | MARELLI |
| Voltage [V] | 12 |
| Manufacturer Restriction | Delco |
| Plotis [mm]: | 80 |
| Alternator Type | 92 |
| Packaging height [cm] | 7,8 |
| Packaging width [cm] | 5,5 |
| Weight [kg] | 0,14 |
| Charging Voltage [V] | 28,3 |
Common original equipment numbers linked to stocked alternatives.
OE (Original Equipment) number 100021 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 20 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 100021.