TOPRAN 121 237 Crankcase Ventilation Valve

Compatible with AUDI A4 B9 Avant (8W5, 8WD) , AUDI Q2 (GAB, GAG) , AUDI TT (FV3, FVP) Show more info
Ensures proper crankcase ventilation to prevent pressure buildup and oil leaks. Essential for engine health and performance.
6.37 EUR
inc. VAT 21%
In stock 2
Delivery 1 day (29.06.2026)
PN 121 237
Make TOPRAN

This TOPRAN crankcase ventilation valve, part number 121 237, is designed to regulate the flow of gases within your engine's crankcase. Proper ventilation is crucial for removing harmful blow-by gases and moisture, which can otherwise lead to oil contamination, sludge formation, and increased internal pressure. By maintaining optimal crankcase pressure, this valve helps to prevent oil leaks from seals and gaskets, extending their lifespan and reducing maintenance needs. It plays a vital role in emissions control by ensuring that these gases are properly managed and recirculated or vented. Engineered for reliable performance, the 121 237 valve is a direct fit for compatible applications, ensuring straightforward installation. Replacing a faulty or clogged ventilation valve can restore engine efficiency and prevent potential long-term damage.

  • Direct replacement for original equipment.
  • Regulates crankcase pressure effectively.
  • Prevents oil leaks and sludge formation.
  • Helps maintain engine cleanliness.
  • Supports emissions control systems.
  • Ensures optimal engine performance.
  • Durable construction for longevity.
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Material
FPM (Fluoro Rubber)
  • AUDI
    • A4 B9 Avant (8W5, 8WD)
      • 35 TFSI Mild Hybrid (110kW/150PS)
      • 40 TFSI Mild Hybrid quattro (150kW/204PS)
      • 40 TFSI Mild Hybrid (150kW/204PS)
    • Q2 (GAB, GAG)
      • 40 TFSI quattro (140kW/190PS)
    • TT (FV3, FVP)
      • 40 TFSI (145kW/197PS)
    • TT Roadster (FV9, FVR)
      • 40 TFSI (145kW/197PS)
    • A5 (F53, F5P)
      • 35 TFSI Mild Hybrid (110kW/150PS)
    • A5 Kabriolets (F57, F5E)
      • 40 TFSI Mild Hybrid (150kW/204PS)
      • 40 TFSI Mild Hybrid quattro (150kW/204PS)
      • 35 TFSI Mild Hybrid (110kW/150PS)
    • A5 Sportback (F5A, F5F)
      • 40 TFSI Mild Hybrid quattro (150kW/204PS)
    • A1 Sportback (GBA)
      • 40 TFSI (152kW/207PS)
    • A3 Limousine (8YS, 8YM)
      • 40 TFSI quattro (140kW/190PS)
    • A3 Sportback (8YA, 8YF)
      • 40 TFSI quattro (140kW/190PS)
    • Q5 (FYB, FYG)
      • 40 TFSI Mild Hybrid quattro (150kW/204PS)
    • Q3 (F3B)
      • 40 TFSI quattro (140kW/190PS)
    • Q3 Sportback (F3N)
      • 40 TFSI quattro (140kW/190PS)
  • VW
    • TIGUAN ALLSPACE (BW2, BJ2)
      • 2.0 TSI 4motion (140kW/190PS)
    • POLO VI (AW1, BZ1, AE1)
      • GTI (152kW/207PS)
    • GOLF VIII (CD1, DA1)
      • 2.0 TSI (140kW/190PS)
      • 2.0 TSI 4motion (140kW/190PS)
      • 2.0 TSI 4motion (150kW/204PS)
    • GOLF VIII Variant (CG5, DB5)
      • 2.0 TSI (140kW/190PS)
      • 2.0 TSI 4motion (140kW/190PS)
      • 2.0 TSI 4motion (150kW/204PS)
    • TIGUAN (CT1)
      • 2.0 TSI 4motion (150kW/204PS)
    • PASSAT B9 Variant (CJ5)
      • 2.0 TSI (150kW/204PS)
    • T-ROC (A11, D11)
      • 2.0 TSI 4motion (140kW/190PS)
    • ARTEON (3H7, 3H8)
      • 2.0 TSI (140kW/190PS)
    • PASSAT B8 (3G2, CB2)
      • 2.0 TSI (140kW/190PS)
    • PASSAT B8 Variant (3G5, CB5)
      • 2.0 TSI (140kW/190PS)
    • TIGUAN (AD1, AX1)
      • 2.0 TSI 4motion (140kW/190PS)
  • SKODA
    • OCTAVIA IV Combi (NX5, PV5)
      • 2.0 TSI 4x4 (140kW/190PS)
      • 2.0 TSI 4x4 (150kW/204PS)
    • OCTAVIA IV (NX3, NN3, PV3)
      • 2.0 TSI 4x4 (140kW/190PS)
    • KODIAQ II (PS7)
      • 2.0 TSi 4x4 (150kW/204PS)
    • KAROQ (NU7, ND7)
      • 2.0 TSI 4x4 (140kW/190PS)
    • KODIAQ I (NS6, NS7, NV7)
      • 2.0 TSI 4x4 (140kW/190PS)
    • SUPERB III (3V3)
      • 2.0 TSI (140kW/190PS)
    • SUPERB III Universālis (3V5)
      • 2.0 TSI (140kW/190PS)
  • CUPRA
    • FORMENTOR (KM7, KMP)
      • 2.0 TSI 4Drive (140kW/190PS)
      • 2.0 TSI 4Drive (150kW/204PS) DNNE
  • SEAT
    • LEON (KL1, KLG)
      • 2.0 TFSI (140kW/190PS)
    • LEON Sportstourer (KL8, KLD)
      • 2.0 TFSI (140kW/190PS)
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