Vaico V10-3533 Engine Coolant Hose Flange

Engine Coolant Hose Flange Overview

VAICO V10-3533 is an engine coolant hose flange for select Volkswagen and Audi applications. It is an aftermarket replacement part built to match the OE reference 1K0121087H and restore proper coolant routing at the connection point.

Key Features

• Plastic construction for a lightweight, corrosion-resistant coolant connection.
• Direct replacement reference for OE number 1K0121087H.
• Compact dimensions: 114 mm length, 89 mm width, and 40 mm height.
• Fits multiple Audi A3, Audi TT, Volkswagen GTI, Jetta, Passat, Eos, and Golf R applications.
• VAICO V10-3533 part number for accurate ordering and catalog matching.

Detailed Description

This coolant hose flange is used at the engine cooling system connection point where the hose interfaces with the flange assembly. VAICO V10-3533 is listed as an aftermarket replacement for OE number 1K0121087H and is cataloged for a range of Volkswagen and Audi models, including Audi A3, Audi A3 Quattro, Audi TT, Audi TT Quattro, Volkswagen GTI, Jetta, Passat, Eos, and Golf R. The plastic design keeps weight low while providing a service replacement for the original coolant routing component. If you are sourcing a coolant flange for a Volkswagen Jetta, Volkswagen Passat, or Audi A3, this part number helps narrow the correct application quickly.

VAICO V10-3533 is also a useful match when replacing a worn or damaged coolant flange on vehicles that use the OE 1K0121087H reference. The part number V10-3533 appears in the catalog listing and should be used to confirm the correct coolant hose flange before installation.

What It Is Used For

• Cracked or brittle coolant flange housing.
• Coolant seepage at the hose connection point.
• Damaged OE-style coolant routing component.
• Replacement of a flange identified by OE number 1K0121087H.
• Service work on cooling system hose connections.

Installation Notes and Tips

Verify the OE reference, V10-3533 part number, and vehicle application before installation. Confirm the hose connection style and surrounding cooling system layout on the specific Audi or Volkswagen model. Inspect adjacent hoses, seals, and clamps for wear while the cooling system is open.