Engine Oil Filler Neck for Type 1 Engines (Without Drain Tube)
Designed for Alternator Conversions – With Integrated Crankcase Breather
Maintain a clean engine bay and proper crankcase ventilation! The
Type 1 oil filler assembly (Part Number 113 115 451 C) is a crucial component for your air-cooled Volkswagen. It features a built-in
20mm breather outlet that connects directly to the air cleaner, ensuring essential pressure relief inside the crankcase during operation
This specific version is manufactured
without the lower road draft tube. By eliminating the extra tube, this neck provides the vital physical clearance required when upgrading your engine to a modern, high-output
AC Alternator, which has a significantly wider body than early, slim DC generators
Features & Benefits:
- Alternator-Friendly Design: Zero interference issues, making it the standard choice for alternator setups and conversions.
- 20mm Breather Port: Recharges ventilation efficiency by routing oil vapors cleanly out of the case.
- OEM Fitment Specification: Formed to exact factory standards for a leakage-free seal at the alternator/generator stand.
- Historical Reference Number: 113 115 451 C / 113-115-451C
Application Guide:
Fits all upright VW Type 1 engines (1200cc to 1600cc+) utilizing a bolt-on alternator/generator stand:
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