Located on the left side of the cylinder head
The 06A 121 121C coolant flange is a Genuine Volkswagen Audi OEM thermostat housing cover for select Mk4 Golf, Jetta, Audi A4, and TT models equipped with the 1.8T or 2.0L engine. It restores a leak-free seal at the thermostat housing with a direct bolt-on fit and no modifications required.
The 06A 121 132AP coolant flange by Febi Bilstein is an OE-quality direct-fit replacement for VW Golf IV, Jetta IV, and Audi TT MKI 1.8T applications. Features a 4-outlet design with sensor hole, mounts on the driver side of the cylinder head, and includes a seal ring for a complete installation.
The 06A 121 132AP coolant flange by URO Parts is an OE-style direct-fit replacement for VW Golf IV, Jetta IV, and Audi TT MKI 1.8T applications. Manufactured under ISO 9000 quality standards, this 4-outlet flange with sensor hole includes an O-ring for a complete, leak-free installation.
The 06A 121 132AQ coolant flange by VAICO is an OE-quality direct-fit replacement for the VW New Beetle 1.8T, mounting on the back of the cylinder head. Includes seal ring for a complete, leak-free installation.
The 06A 121 132R coolant flange by Febi Bilstein is an OE-quality direct-fit replacement for select Volkswagen vehicles. It delivers correct fit, reliable sealing, and durable construction with no modifications required.
The 06A 121 133D coolant flange by VIKA is an OE-style direct-fit replacement for select Volkswagen and Audi 4-cylinder vehicles. Precision-molded construction ensures correct fit and reliable sealing.
The 06B 121 132E coolant flange by URO Parts is an OE-style direct-fit replacement for the Audi A4 B6 1.8T (2002–2006). Engineered to meet or exceed OEM specifications with the O-ring included for a complete, leak-free installation.
Located on the left side of the cylinder head
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The 06A 121 121C flange is an aluminum OE-style coolant flange for select Volkswagen and Audi vehicles. It restores leak-free cooling system performance with a direct bolt-on fit and no modifications required.
Install a new o-ring for a proper seal. 36×3.15
