JayCee JC-2222-0 Billet Oil Filler Cap with #8 AN Breather - Black

JayCee Billet Oil Filler Cap with #8 AN Breather – JC-2222-0

Improve your engine's crankcase ventilation and add a high-end look to your engine bay with the JayCee Billet Oil Filler Cap. This is a functional performance upgrade designed to solve the common issue of excessive crankcase pressure in air-cooled Volkswagen engines. Machined from 6061 billet aluminum and finished in a sleek black anodizing, it features an integrated -8 AN male fitting for easy connection to a breather box or catch can system.

The cap is designed to screw directly into the factory threaded bung on your 12V alternator or generator stand. Unlike stock plastic or twist-on caps that can leak or pop off under pressure, this billet version includes a high-quality O-ring seal to ensure a completely leak-free environment. The perimeter of the cap features a knurled finish, providing a secure grip for easy removal even if your hands are oily.

Detailed Vehicle Compatibility

This cap is a universal fit for Type 1 based engines using a standard threaded alternator or generator stand continuously across these years:

VW Beetle (Standard):

1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977

VW Super Beetle:

1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979

VW Karmann Ghia:

1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974

VW Type 3:

1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972

Product Highlights & Features

• Integrated -8 AN Fitting: Built-in breather port allows for immediate plumbing into your engine's external breather system to reduce internal pressure.

• Billet 6061 Aluminum: CNC-machined for precision and extreme durability; it will not crack or warp like factory plastic or thin metal caps.

• Positive O-Ring Seal: Includes a dedicated O-ring that seals against the top of the alternator stand, preventing messy oil mist from coating your engine tin.

• Low-Profile Design: Engineered to provide maximum clearance for air cleaners and carburetor linkages while still being easy to operate.

Technical Specifications

• Part Number: JC-2222-0

• Finish: Black Anodized

• Material: Billet 6061 T-6 Aluminum

• Breather Size: -8 AN Male

• Includes: Cap and O-Ring Seal

Installation & Maintenance Tips

• Lubricate the O-Ring: Before the first installation, apply a tiny smear of clean engine oil to the O-ring. This ensures it slides smoothly onto the alternator stand and prevents the rubber from bunching or tearing.

• Hand-Tighten Only: The knurled edge is designed for hand-tightening. Because of the O-ring seal, you do not need to use tools to get a leak-free fit. Over-tightening with pliers can damage the anodized finish and the O-ring.

• Breather Plumbing: For the best performance, pair this cap with a -8 AN stainless braided or push-lock hose. Ensure the hose has enough slack to allow for engine movement and doesn't rub against the fan belt or throttle linkage.

• Cleaning: To maintain the deep black finish, wipe the cap down with a soft cloth and a light detail spray. Avoid using harsh degreasers on the anodized surface as they can cause the color to fade or turn "purple" over time.