Corteco 12036432 70x83x8 - shaft seal for transfer cases

Application and function

The Corteco 12036432 (70x83x8) shaft seal is a precision ACM BASLDRWX7 rotary seal designed for use in transfer cases, gearboxes and powertrain systems. It ensures reliable oil sealing around rotating shafts while protecting the assembly from dust and contaminants. This seal is used as a direct replacement for OEM references SEAT 02N409189 and VW 02N409189, maintaining full compatibility with factory installations. Thanks to its enhanced thermal and chemical resistance, the seal offers stable operation even in demanding automotive and industrial conditions.

Key advantages and technical benefits

Manufactured from high-quality ACM elastomer, this oil seal provides excellent resistance to transmission oils, lubricants and elevated operating temperatures. The BASLDRWX7 design minimizes friction, increases durability and ensures accurate lip geometry, resulting in improved sealing performance and reduced wear. The reinforced dust lip provides additional protection, making the seal suitable both for automotive powertrain systems and heavy-duty industrial applications. Its precise fit and robust construction contribute to long service life and reduced maintenance requirements.

Technical specifications - Corteco 12036432

• Type: oil seal / rotary shaft seal

• Dimensions: 70 x 83 x 8 mm

• Material: ACM (oil- and heat-resistant elastomer)

• Design: BASLDRWX7 - low-friction sealing lip with dust protection

• Application: transfer case, gearbox, auxiliary drive components

• OEM reference: SEAT 02N409189, VW 02N409189

Main description

The Corteco 12036432 70x83x8 shaft seal is a durable, high-precision oil seal designed for powertrain systems that require stable rotary sealing under continuous load. Manufactured from ACM elastomer, the seal offers excellent resistance to transmission oil, lubricating fluids and elevated temperatures typical of automotive and industrial environments. The BASLDRWX7 construction reduces friction on the sealing lip, improving efficiency and extending the service life of both the seal and the surrounding components.

This model is commonly installed in SEAT and VW vehicles (OEM 02N409189) and is used in transfer cases, drivetrain assemblies and other lubricated systems. Its optimized sealing geometry ensures reliable performance across varying rotational speeds and temperature cycles, preventing leaks and protecting internal mechanical parts.

Due to its robust design and compatibility with standard housings and shafts, the Corteco 12036432 is an excellent choice for workshops, industrial maintenance departments, gearbox refurbishers and powertrain component suppliers. It is engineered for long-term reliability, reduced downtime and consistent sealing efficiency in harsh conditions.

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FAQ - Frequently Asked Questions

1. What is the difference between a single-lip and double-lip seal?
A double-lip seal includes an additional dust lip that protects against external contaminants. Single-lip seals focus solely on oil retention.

2. How do I select the correct shaft seal size?
Match the inner diameter to the shaft, the outer diameter to the housing, and ensure the width aligns with the installation depth. This model measures 70 x 83 x 8 mm.

3. What material is this seal made from?
It is produced from ACM elastomer, known for its resistance to heat, oil and transmission fluid.

4. Is this seal compatible with VW and SEAT vehicles?
Yes. It fits applications using OEM reference 02N409189.

5. Where are ACM shaft seals typically used?
They are used in gearboxes, transfer cases, auxiliary drives and lubricated rotating systems requiring heat and oil resistance.