CORTECO 19035066 Rotary Shaft Seal 37x54x9/16 ACM HTC BASL

Application - Rotary Shaft Seal for Toyota Drivetrain Systems

The CORTECO 19035066 37x54x9/16 ACM HTC is a precision rotary shaft seal engineered for demanding automotive drivetrain applications. Used as an oil seal and shaft sealing ring, it ensures reliable lubricant retention and protection against contaminants in dynamic rotating assemblies.

This model corresponds to OEM reference Toyota 9031137004 and is applied in selected Toyota systems where dimensional accuracy and directional sealing performance are essential. The 37x54x9/16 mm configuration guarantees precise housing fit and stable sealing under continuous rotational load.

The seal is designed for left-hand rotation, which is critical for maintaining optimal sealing efficiency in applications with defined shaft rotation direction.

Advantages of BASL Construction and ACM Material

The BASL construction features a metal insert with an elastomer-coated outer diameter and an additional dust lip. In practice, it operates as a double lip oil seal, providing enhanced protection against dirt and moisture while maintaining oil retention.

Manufactured from ACM (acrylate rubber), this rotary seal offers excellent resistance to oils and grease and improved thermal stability compared to standard NBR materials. ACM is particularly suitable for engine and gearbox environments exposed to elevated temperatures.

Key performance benefits:

• Reliable rotary shaft seal for left-hand rotation

• High durability under dynamic load

• Strong resistance to oils and grease

• Elastomer-coated outer surface for improved static sealing

• Precise fit for 37 mm shaft diameter

This makes it a dependable solution within hydraulic and automotive seals requiring directional sealing performance.

Technical Data

• Manufacturer: CORTECO

• Part number: 19035066

• Type: Rotary shaft seal / Oil seal

• Construction: BASL

• Full designation: HTC

• Inner diameter (d): 37 mm

• Outer diameter (D): 54 mm

• Width (b): 9/16 mm

• Material: ACM

• Rotation direction: Left-hand

• Outer surface: Elastomer-coated

• OEM reference: Toyota 9031137004

Additional Information - Seal Design and Materials

The HTC designation defines a lip profile optimized for specific rotational direction. The BASL structure enhances contamination resistance and long-term sealing stability. ACM material ensures improved heat resistance and compatibility with transmission and engine oils.

Manufacturer Information (GSPR)

Responsible manufacturer: Corteco GmbH
Address: Badener Str. 4, 69493 Hirschberg, Germany
Email: service@corteco.de

FAQ - Frequently Asked Questions

What is the difference between single lip and double lip oil seals?
A single lip oil seal retains lubricant on one side, while a double lip oil seal includes an additional dust lip for better contamination protection.

Does rotation direction matter?
Yes. This model is designed for left-hand rotation. Using the correct directional seal ensures optimal sealing performance.

Is ACM better than NBR?
ACM provides better thermal resistance and improved performance in high-temperature oil environments.

How do I select the correct shaft seal size?
Match the inner diameter to the shaft (37 mm), the outer diameter to the housing bore (54 mm), and confirm the width (9/16 mm) according to OEM specification.