If we talk in more detail about the crankcase, it means a fairly dense body part of the power plant, inside which the crankshaft is located. There are cylinders in the upper part of this device. Of course, depending on the make and model of the vehicle, the internal components of the crankcase can be very different. It should be noted, however, that the crankcase ventilation pipe is considered one unchanged component.

1. A3 (8L1)
2. A3 / S3 (8L1)
3. CORDOBA (6K1, 6K2)
4. CORDOBA Saloon (6K1, 6K2)
5. IBIZA II (6K1)
6. IBIZA Mk II (6K1)
7. OCTAVIA I (1U2)
8. CADDY II Box Body/MPV (9K9A)
9. VAN II Box Body/MPV (9K9A)
10. PANEL II Box Body/MPV (9K9A)
11. CADDY Mk II (9K9A)
12. POLO CLASSIC (6V2)
13. FLIGHT CLASSIC (6V2)
14. DERBY CLASSIC (6V2)
15. GOLF IV (1J1)
16. GOLF IV (1J1, 9B1)
17. GOLF Mk IV (1J1)
18. NEW BEETLE (9C1, 1C1)
19. BEETLE (9C1, 1C1)
20. POLO Variant (6V5)
21. See more in applications

The principle of the SWAG brand Hose, crankcase breather

In fact, these elements are designed to perform a specific function. In particular, this concerns the formation of a connecting mechanism for the pipeline. In the absence of branch pipes, it is difficult to imagine a full-fledged ventilation system of the motor. Of course, over time, the crankcase ventilation branch pipe becomes unusable, as a result of which it becomes necessary to replace it. However, in order for the new device to perfectly cope with all the assigned functions, it must be selected correctly.