TOPRAN 121 691 Secondary Air System Valve

Compatible with VW POLO III CLASSIC (6V2) , SEAT CORDOBA (6K1, 6K2) , SEAT IBIZA II (6K1) Show more info
This valve is a direct replacement for the original secondary air system valve on your vehicle. Ensure proper emissions control with this quality component.
35.74 EUR
inc. VAT 21%
In stock 3
Delivery 1 day (18.05.2026)
PN 121 691
Make TOPRAN

The secondary air injection system plays a crucial role in reducing harmful emissions during engine startup. This TOPRAN valve is designed to meet or exceed the original equipment specifications, ensuring reliable performance and efficient operation. Proper functioning of the secondary air system valve is essential for your vehicle's emissions control system. A faulty valve can lead to increased emissions, potentially causing your vehicle to fail emissions tests and triggering warning lights on your dashboard. Crafted with durable materials, this valve is built to withstand the demanding conditions of the engine bay. Its precise engineering guarantees a perfect fit and seamless integration with your vehicle's existing secondary air system components.

  • Direct fit for original equipment
  • Ensures proper emissions control
  • Reliable performance
  • Durable construction
  • Meets or exceeds OE specifications
  • Essential for emissions system function
  • High-quality manufacturing
Valve type
Shut-off valve
Valve type
Check valve
Operating mode
pneumatic
Additional article/Additional information
with gasket
Housing material
Aluminum
Type of fastening
Flap fastener
Number of mounting holes
2
Flange hole diameter [mm]
17,5
Thread size
M 6
Thread pitch [mm]
"1"
  • VW
    • POLO III CLASSIC (6V2)
      • 100 1.6 (74kW/100PS)
    • SHARAN (7M8, 7M9, 7M6)
      • 1.8 T 20V (110kW/150PS)
    • NEW BEETLE (9C1, 1C1)
      • 2.0 (85kW/115PS)
      • 1.8 T (110kW/150PS)
      • 1.8 T (132kW/180PS)
    • TRANSPORTER T4 Autobuss (70B, 70C, 7DB, 7DK, 70J, 70K, 7DC,
      • 2.8 VR6 (150kW/204PS)
    • NEW BEETLE Kabriolets (1Y7)
      • 2.0 (85kW/115PS)
      • 1.8 T (110kW/150PS)
    • TRANSPORTER T5 Autobuss (7HB, 7HJ, 7EB, 7EJ)
      • VR6 3.2 (173kW/235PS)
      • 3.2 V6 4motion (173kW/235PS)
    • TRANSPORTER T5 Furgons (7HA, 7HH, 7EA, 7EH)
      • VR6 3.2 (173kW/235PS)
      • VR6 3.2 4motion (173kW/235PS)
    • TRANSPORTER T5 Platforma/Šasija (7JD, 7JE, 7JL, 7JY, 7JZ, 7F
      • VR6 3.2 (173kW/235PS)
    • TRANSPORTER T4 Furgons (70A, 70H, 7DA, 7DH)
      • 2.8 VR6 (150kW/204PS)
  • SEAT
    • CORDOBA (6K1, 6K2)
      • 1.6 i (74kW/101PS)
    • IBIZA II (6K1)
      • 1.6 i (74kW/101PS)
    • ALHAMBRA (7V8, 7V9)
      • 1.8 T 20V (110kW/150PS)
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