Aluminum Thermostat Housing - VW Mk4 Golf & Jetta 2.0L

Upgrade your Volkswagen Mk4 2.0L Golf or Jetta with this high-quality aluminum thermostat housing, built to outlast and outperform the factory plastic unit. The stock housing is known to crack and leak over time, but this cast aluminum replacement offers unmatched strength, corrosion resistance, and long-term reliability.

Designed as a direct OEM replacement, this thermostat housing ensures perfect fitment and easy installation with factory hardware and seals. Whether you’re performing maintenance or improving cooling system durability, this is the ultimate upgrade for your Mk4.

Key Features:

• Fits Volkswagen Mk4 Golf & Jetta 2.0L engines (1999–2005)
• Cast aluminum construction for superior durability
• Direct replacement for factory plastic housing
• Resists cracking, warping, and coolant leaks
• Perfect for maintenance or performance builds
• Lifetime warranty for peace of mind

Replaces OE Part #'s


06A-121-132 / 06A 121 132 / 06A121132

6A1-211-32 / 6A1 211 32 / 6A121132