1956–1979 VW Oversize Exhaust to Head Stud 6x8x31mm N144542 - OEM Number(s) (N144542)
Restore proper exhaust sealing and prevent stripped threads with this Oversize Exhaust to Head Stud, engineered for all 6mm-to-8mm oversized repairs. Perfect when your original exhaust studs have stripped from the cylinder head, this oversize stud installs securely and restores factory clamping strength. Exact OE-style threading with a dual-diameter design simplifies installation while preserving authenticity.
Features
• Correct oversize exhaust to head repair stud
• M6-1.0 threads on exhaust nut side
• M8-1.25 oversize threads for cylinder head side
• 31mm overall length matches factory specification
• Hardened metal construction for heat resistance and strength
Fitment Applications
• Beetle, Standard (1200cc–1600cc) – 1950–1977
• Beetle, Super Beetle (1600cc) – 1971–1979
• Bus / Type 2 (1500cc–1600cc) – 1961–1971
• Karmann Ghia (1200cc–1600cc) – 1956–1974
• Thing (1600cc) – 1973–1974
Tech Notes
• OE Number: N144542
• Common repair solution for stripped cylinder head exhaust threads
• For installation, drill and tap the head for M8-1.25 threads
• Install stud into head using thread-lock compound for secure retention
• Once installed, the M6-1.0 threaded section accepts the original exhaust nuts
Why Choose an Oversize Stud?
Rather than replacing expensive heads, this oversize stud repairs damaged exhaust ports economically. By stepping up to M8 threads where necessary, it restores sealing integrity while retaining the original M6 exhaust hardware.
Because Details Matter
This oversize stud restores reliability where it matters most—at the engine head. A smart repair for vintage VWs facing stripped threads or damaged ports.
Also known under these part numbers: (For reference only)
- 686420247715
- N0144542
- N144542