Details
- Thread Size
- 12 X 1 (2)
- Material
- 1
- Brake System
- Bosch
- Piston Diameter [mm]
- 23,8 mm
Compare 26 brands — check fitment and order online
OE part number 31740 is a Master brake cylinder compatible with AUDI, FIAT and other makes. Available from 26 brands, priced from £24.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Master brake cylinder OE 31740 prices range from £24.99 to £90.99, with 26 brands offering compatible parts.
OE 31740 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| VW | GOLF IV (1J1), BORA I (1J2), GOLF IV Variant (1J5), BORA Variant (1J6) +1 |
| SKODA | OCTAVIA I Combi (1U5), OCTAVIA I (1U2) |
| SEAT | LEON (1M1), TOLEDO II (1M2) |
| AUDI | A3 (8L1) |
Choose a brand to see their compatible parts for OE 31740.
Products matched to OE number 31740.

| Attribute | Value |
|---|---|
| Bore Diameter [mm] | 27 |
| Supplementary Article/Supplementary Info | 63 |
| Brake System | Lucas |
| Supplementary Article/Info 2 | with protective cap/bellow |
| Braking/Driving Dynamics Article Reference | 0 |
| Piston Diameter [mm] | 17,5 |
| Thread Size | 4-M10x1 |
| Thread Size 1 | 2x M10x1 |
| Piston Diameter [mm] | 22 |
| Thread Size 2 | 2x M12x1 |
Common original equipment numbers linked to stocked alternatives.
OE (Original Equipment) number 31740 is a manufacturer's reference code for Master brake cylinder used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 26 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 31740.