059-103-113 Engine Core Expansion Plug 36.6mm - Audi VW Porsche 924

Engine Core Expansion Plug (36.6mm) – 059-103-113

The 059-103-113 is a high-quality, cup-style expansion plug (freeze plug) used across an extensive range of Audi, Volkswagen, and Porsche 924 engines. With a precision outer diameter of 36.6mm, this plug is designed for a tight interference fit within the engine block or cylinder head. Its primary role is to seal internal coolant passages while acting as a safety relief point to prevent the engine casting from cracking if the coolant ever freezes.

Crafted from heavy-duty sheet steel with a corrosion-resistant finish, this plug is a direct replacement for original parts that have become pitted or thin due to age. Whether you are performing a restoration on a classic Audi 100 or maintaining a modern VW Atlas, this 36.6mm plug provides the reliable seal required for high-pressure cooling systems.

Detailed Vehicle Compatibility

Audi 100:

• 1989, 1990, 1992, 1993, 1994

Audi 100 Quattro:

• 1989, 1990, 1992, 1993, 1994

Audi 100 Series:

• 1974

Audi 200 Quattro:

• 1989, 1990

Audi 80:

• 1988, 1989, 1990, 1991, 1992

Audi 80 Quattro:

• 1991, 1992

Audi 90:

• 1988, 1989, 1990, 1991

Audi 90 Quattro:

• 1988, 1989, 1990, 1991, 1992

Audi A6:

• 1995

Audi A6 Quattro:

• 2022

Audi A7 Quattro:

• 2014

Audi Coupe:

• 1981, 1982, 1983, 1985, 1986, 1987

Audi Quattro:

• 1983, 1984, 1985, 1986

Audi R8:

• 2022

Porsche 924:

• 1977, 1978, 1979, 1980, 1981, 1982

Volkswagen Atlas / Atlas Cross Sport:

• 2021, 2022

Volkswagen Cabrio:

• 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002

Volkswagen Cabriolet:

• 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993

Volkswagen Corrado:

• 1990, 1991, 1992

Volkswagen Dasher:

• 1974, 1975, 1976, 1977, 1978, 1979, 1980

Volkswagen EuroVan:

• 1993, 1994, 1995, 1996

Volkswagen Golf:

• 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000

Volkswagen Jetta:

• 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999

Volkswagen Passat:

• 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997

Volkswagen Quantum:

• 1982, 1983, 1984, 1985, 1986, 1987, 1988

Volkswagen Rabbit Pickup:

• 1982, 1983

Volkswagen Scirocco:

• 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989

Volkswagen Tiguan:

• 2019, 2022

Volkswagen Vanagon:

• 1982, 1983

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Product Highlights & Features

• Precision 36.6mm Diameter: Specifically sized for the core ports of water-cooled Volkswagen and Audi engine blocks and heads.

• Corrosion-Resistant Coating: Features a protective finish to prevent rust and degradation from contact with engine coolant.

• Direct Interchange: Replaces part numbers 036-103-113A and 076-103-113, ensuring broad compatibility with both vintage and modern VAG engines.

Technical Specifications

• Part Number: 059-103-113

• Size: 36.6mm

• Design: Cup-Type Expansion Plug

• Material: Steel

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Installation & Maintenance Tips

• Cleaning the Bore: Use a wire brush or emery cloth to remove all corrosion from the engine block port. A clean, smooth surface is essential for a permanent, leak-free seal.

• Driver Tool Usage: Use a specialized freeze plug driver or a socket that fits snugly inside the cup to ensure the plug is driven in straight.

• Applying Sealant: Many builders recommend a thin smear of non-hardening sealant or sleeve retainer (such as Loctite 609) around the outer edge before installation for added security.

 

 

555-103

555103

07284

059103113