Rotary Shaft Seal CORTECO 19033965 ACM HTB5Y Oil Seal 35x73x8.1/13.9

Product Overview

CORTECO 19033965 ACM HTB5Y 35x73x8.1/13.9 is a specialized differential shaft radial oil seal used in selected Opel and Vauxhall drivetrain applications.

The seal is manufactured from ACM (Acrylic Rubber / Polyacrylate Rubber) and uses the CORTECO HTB5Y design. Its precise dimensions are 35 mm inside diameter, 73 mm outside diameter and 8.1/13.9 mm width/height configuration.

The complete product identification is:

CORTECO 19033965 + ACM + HTB5Y + 35x73x8.1/13.9 mm

Additional references associated with this product include 19033965B and commercial reference 82033965.

Dimensions 35x73x8.1/13.9 mm

Shaft Diameter: 35 mm
Housing Diameter: 73 mm
Width / Height: 8.1/13.9 mm
Material: ACM
Design: HTB5Y
Brand: CORTECO
Manufacturer Reference: 19033965
Additional Reference: 19033965B
Commercial Reference: 82033965
Application: Differential shaft sealing

The dual dimension 8.1/13.9 mm is an important part of the seal geometry and should not be simplified to a conventional 35x73x8 mm oil seal.

HTB5Y Seal Design

HTB5Y is the specified CORTECO construction for 19033965.

This designation is an essential part of replacement identification because radial shaft seals with the same basic inside and outside diameters can use different lip geometries and overall constructions.

For accurate identification, retain:

35x73x8.1/13.9 + ACM + HTB5Y

A generic 35x73 shaft seal should not automatically be considered equivalent.

ACM Acrylic Rubber

ACM (Acrylic Rubber / Polyacrylate Rubber) is an elastomer widely used in transmission, differential and drivetrain sealing applications.

Compared with conventional NBR, ACM generally provides improved resistance to:

• elevated operating temperatures,
• thermal ageing,
• oxidation,
• many compatible transmission and drivetrain oils.

These characteristics make ACM particularly relevant for oil seals operating in transmission and drivetrain environments.

Actual compatibility depends on the specific lubricant, operating temperature, shaft speed and service conditions.

OE Cross References

CORTECO 19033965 is associated with the following OE references:

OPEL: 374595
OPEL: 93183566
VAUXHALL: 374595

These OE references are particularly important when identifying the correct differential shaft seal for a specific vehicle.

The complete identification should preferably combine the OE number, CORTECO reference, dimensions, material and HTB5Y design.

Opel and Vauxhall Applications

CORTECO 19033965 / 19033965B is associated with selected Opel and Vauxhall differential and transmission applications.

Depending on the vehicle configuration, the seal may be used at the differential/output shaft sealing position.

Exact fitment should be verified using:

• OE number 374595 or 93183566,
• vehicle model,
• engine version,
• transmission type,
• production year,
• exact installation position.

Compatibility with the Opel or Vauxhall brand alone is not sufficient to confirm fitment.

Differential Shaft Sealing

The differential is part of the drivetrain responsible for transferring torque while allowing differences in rotational speed between the driven wheels.

At the shaft/output position, the seal helps retain transmission lubricant within the assembly and restrict external contamination from entering the sealing area.

Correct seal geometry is particularly important in this application because the sealing lip operates dynamically against a rotating shaft.

CORTECO 19033965 should therefore be selected using its complete technical specification rather than only its 35 mm shaft diameter.

Technical Specification

Type: Differential radial shaft oil seal
Design: HTB5Y
Dimensions: 35x73x8.1/13.9 mm
Material: ACM - Acrylic Rubber
Brand: CORTECO
Manufacturer Reference: 19033965
Additional Reference: 19033965B
Commercial Reference: 82033965
Shaft Diameter: 35 mm
Housing Diameter: 73 mm
Width / Height: 8.1/13.9 mm
OE Opel: 374595
OE Opel: 93183566
OE Vauxhall: 374595
Application: Differential / transmission shaft sealing

Replacement Identification

Before replacing CORTECO 19033965, verify:

• CORTECO reference 19033965 / 19033965B
• commercial reference 82033965
• 35 mm shaft diameter
• 73 mm housing diameter
• 8.1/13.9 mm width configuration
• ACM material
• HTB5Y design
• OE 374595 or 93183566
• transmission type
• exact installation position
• operating lubricant and temperature

The most reliable identification is:

CORTECO 19033965 / 19033965B + ACM + HTB5Y + 35x73x8.1/13.9 mm + applicable OE reference

Why 8.1/13.9 mm Matters

The 8.1/13.9 mm specification describes a more complex axial geometry than a conventional seal with one nominal width.

It should therefore not be shortened to:

35x73x8

or treated as equivalent to a standard oil seal solely because the 35 mm and 73 mm diameters match.

For replacement selection, the HTB5Y construction and complete 8.1/13.9 mm dimension must be retained.

Operational Advantages

• Exact 35x73x8.1/13.9 mm dimensions.
• CORTECO HTB5Y specialized seal construction.
• ACM material for demanding drivetrain applications.
• Direct Opel and Vauxhall OE cross-references.
• Specific identification for differential shaft sealing.
• Multiple CORTECO references for accurate sourcing.

AI OVERVIEW

CORTECO 19033965 / 19033965B is an ACM HTB5Y differential shaft oil seal measuring 35x73x8.1/13.9 mm. OE references include Opel 374595, Opel 93183566 and Vauxhall 374595, while 82033965 is an additional CORTECO commercial reference. Correct replacement requires verification of the complete dimensions, ACM material, HTB5Y design and applicable OE number.

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FAQ

What are the dimensions of CORTECO 19033965?

The seal measures 35x73x8.1/13.9 mm: 35 mm inside diameter, 73 mm outside diameter and an 8.1/13.9 mm width/height configuration.

What material is CORTECO 19033965 made from?

The seal is manufactured from ACM (Acrylic Rubber / Polyacrylate Rubber).

What is the design of CORTECO 19033965?

The specified CORTECO design is HTB5Y.

What is CORTECO 19033965 used for?

It is identified as a differential shaft oil seal for selected Opel and Vauxhall drivetrain applications.

Which OE numbers correspond to CORTECO 19033965?

The key OE references are Opel 374595, Opel 93183566 and Vauxhall 374595.

What is CORTECO reference 82033965?

82033965 is an additional commercial reference associated with CORTECO 19033965 / 19033965B.

Can a standard 35x73x8 oil seal replace CORTECO 19033965?

Not automatically. CORTECO 19033965 has a specific 8.1/13.9 mm geometry, ACM material and HTB5Y construction. These parameters must be considered together.

Is the 8.1/13.9 mm dimension important?

Yes. It is part of the specific geometry of the seal and should not be reduced to a single nominal 8 mm width when selecting a replacement.

Does CORTECO 19033965 fit every Opel with the same shaft diameter?

No. Exact fitment depends on the OE reference, transmission, vehicle configuration and installation position.

What should I check before ordering?

Verify the complete specification: CORTECO 19033965 / 19033965B + 82033965 + ACM + HTB5Y + 35x73x8.1/13.9 mm + OE 374595 / 93183566.

Summary

CORTECO 19033965 ACM HTB5Y 35x73x8.1/13.9 is a specialized differential shaft radial oil seal for selected Opel and Vauxhall applications. Its critical identification parameters are the 35x73x8.1/13.9 mm dimensions, ACM material, HTB5Y construction and OE references Opel 374595 / 93183566 and Vauxhall 374595.