B5 B5.5 MK4 1.8T INTERCOOLER 058145805A

Passat

ENIGINE CODE AEB

3B0121467A  air guide or air duct

058145805A

The part number 058145805A refers to an intercooler (charge air cooler) used primarily on Volkswagen and Audi vehicles equipped with the 1.8L Turbo (1.8T) engine. 

Part Name: Intercooler / Charge Air Cooler.

This component cools the compressed air from the turbocharger before it enters the engine, improving performance and efficiency.

Specifications: According to AutoDoc, it has a core length of 241 mm, core width of 166 mm, and core depth of 62 mm, with an inlet/outlet diameter of 53 mm. 

The intercooler with part number 058145805A is compatible with the following vehicles and years: 
Volkswagen Passat (B5/B5.5): 1998–2005 (compatible with 1.8L Turbo and some 1.9L TDI engine variants).
Audi A4 (B5/B6): 1997–2001 (1.8L Turbo engines).
Audi A4 Quattro: 1999–2001.
Volkswagen Jetta (MK4): 1998–2001 models with the 1.8L Turbo engine. 

Interchangeable Part Numbers 
Other genuine part numbers that are interchangeable or related include: 
058145805B
058145805G
058145805H