TOPRAN 121 637 Crankcase Ventilation Kit

Compatible with AUDI A3 Limousine (8VS, 8VM) , SKODA OCTAVIA III (5E3, NL3, NR3) , SKODA OCTAVIA III Combi (5E5, 5E6) Show more info
This kit is designed to replace the original crankcase ventilation system components. Ensure proper engine ventilation and oil separation.
46.52 EUR
inc. VAT 21%
In stock 5
Delivery 1 day (13.05.2026)
PN 121 637
Make TOPRAN

The TOPRAN 121 637 kit provides essential components for your vehicle's crankcase ventilation system. Over time, these parts can degrade, leading to poor engine performance and increased oil consumption. This replacement kit helps restore the proper function of the crankcase ventilation, allowing harmful blow-by gases to be safely evacuated from the engine. This process is crucial for maintaining engine health and preventing oil leaks. By installing this kit, you are addressing potential issues related to clogged or damaged ventilation valves and hoses. Proper ventilation also contributes to cleaner emissions and optimal fuel efficiency.

  • Direct replacement for original crankcase ventilation components.
  • Restores proper engine ventilation.
  • Helps prevent oil leaks and consumption.
  • Ensures effective separation of oil from blow-by gases.
  • Contributes to cleaner emissions.
  • Designed for specific vehicle applications.
Installation side
Cylinder head cover
Valve type
Diaphragm-type valve
Additional article/Additional information
with gasket
Additional article/Additional information
with piping
Housing material
GFK (Glass Fiber Reinforced Plastic)
Number of parts [fractional]
3
  • AUDI
    • A3 Limousine (8VS, 8VM)
      • S3 quattro (221kW/300PS)
      • S3 quattro (228kW/310PS)
    • A3 Sportback (8VA, 8VF)
      • S3 quattro (221kW/300PS)
      • S3 quattro (228kW/310PS)
    • TT (FV3, FVP)
      • 2.0 TFSI (169kW/230PS)
      • 2.0 TFSI quattro (169kW/230PS)
      • 2.0 TTS quattro (228kW/310PS)
      • 1.8 TFSI (132kW/180PS)
      • 2.0 TTS TFSI quattro (210kW/286PS)
    • TT Roadster (FV9, FVR)
      • 2.0 TFSI (169kW/230PS)
      • 2.0 TFSI quattro (169kW/230PS)
      • 2.0 TTS TFSI quattro (228kW/310PS)
      • 1.8 TFSI (132kW/180PS)
      • 2.0 TTS TFSI quattro (210kW/286PS)
    • A3 (8V1, 8VK)
      • S3 quattro (228kW/310PS)
  • SKODA
    • OCTAVIA III (5E3, NL3, NR3)
      • 1.8 TSI (132kW/180PS)
      • 2.0 TSI RS (162kW/220PS)
      • 1.8 TSI 4x4 (132kW/180PS)
      • 2.0 TSI RS (169kW/230PS)
    • OCTAVIA III Combi (5E5, 5E6)
      • 1.8 TSI (132kW/180PS)
      • 1.8 TSI 4x4 (132kW/180PS)
      • 2.0 TSI RS (162kW/220PS)
      • 2.0 TSI RS (169kW/230PS)
    • SUPERB III (3V3)
      • 2.0 TSI 4x4 (206kW/280PS)
      • 2.0 TSI (162kW/220PS)
      • 1.8 TSI (132kW/180PS)
    • SUPERB III Universālis (3V5)
      • 2.0 TSI (162kW/220PS)
      • 1.8 TSI (132kW/180PS)
      • 2.0 TSI 4x4 (206kW/280PS)
  • VW
    • GOLF VII (5G1, BQ1, BE1, BE2)
      • 2.0 GTI (162kW/220PS)
      • 2.0 GTI (169kW/230PS)
      • 2.0 R 4motion (206kW/280PS)
      • 2.0 R 4motion (221kW/300PS)
      • 2.0 GTI (155kW/210PS)
      • 2.0 GTI Clubsport (195kW/265PS)
      • 2.0 GTI Clubsport S (228kW/310PS)
      • 2.0 R 4motion (228kW/310PS)
      • 2.0 R 4motion (213kW/290PS)
      • 2.0 GTI (180kW/245PS)
      • 2.0 GTI TCR (213kW/290PS)
    • GOLF VII Variant (BA5, BV5)
      • 2.0 R 4motion (221kW/300PS)
      • 2.0 R 4motion (228kW/310PS)
      • 2.0 R 4motion (213kW/290PS)
    • PASSAT B8 (3G2, CB2)
      • 2.0 TSI (162kW/220PS)
      • 2.0 TSI 4motion (206kW/280PS)
      • 2.0 TSI 4motion (200kW/272PS)
    • PASSAT B8 Variant (3G5, CB5)
      • 2.0 TSI (162kW/220PS)
      • 2.0 TSI 4motion (206kW/280PS)
      • 2.0 TSI 4motion (200kW/272PS)
    • SHARAN (7N1, 7N2)
      • 2.0 TSI (162kW/220PS)
    • TIGUAN (AD1, AX1)
      • 2.0 TSI 4motion (162kW/220PS)
    • ARTEON (3H7, 3H8)
      • 2.0 TSI 4motion (206kW/280PS)
      • 2.0 TSI 4motion (200kW/272PS)
  • SEAT
    • LEON (5F1)
      • 2.0 Cupra (206kW/280PS)
      • 2.0 Cupra (195kW/265PS)
      • 2.0 Cupra (213kW/290PS)
      • 2.0 Cupra (221kW/300PS)
      • 2.0 Cupra R (228kW/310PS)
    • LEON ST (5F8)
      • 2.0 Cupra (195kW/265PS)
      • 2.0 Cupra (206kW/280PS)
      • 2.0 Cupra (213kW/290PS)
      • 2.0 Cupra (221kW/300PS)
      • 2.0 Cupra 4Drive (221kW/300PS)
    • ALHAMBRA (710, 711)
      • 2.0 TSI (162kW/220PS)
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