Coolant Expansion Tank Cap for Volkswagen Golf Jetta Audi A3 A4 (1999–2005) 3B0121321

Includes: - Coolant Expansion Tank Cap

Fits Models: - Volkswagen Golf - Volkswagen Jetta - Audi A3 - Audi A4

Model Years: - 1999–2005

Submodels: - Golf Mk4, Jetta Mk4, A3 (8L), A4 (B6) - Body styles: Hatchback, Sedan

Engine Options: - Common engine sizes include 1.8L Turbo (AWP), 2.0L (ABA), 1.9L TDI (ALH), 2.8L V6 (AAA), and 3.0L V6 (BDF)

Description: This coolant expansion tank cap is designed for select Volkswagen and Audi models from 1999 to 2005. It ensures proper pressure regulation within the cooling system, preventing leaks and maintaining optimal engine temperature.

Features: - Direct replacement for OEM part number 3B0121321 - Durable construction for long-lasting performance - Easy installation with no special tools required - Compatible with various engine configurations - Helps prevent coolant loss and overheating

Part Number: 3B0121321