Rotary Shaft Seal CORTECO 01034085 ACM BASL Oil Seal 40x57.15x7.94

CORTECO 01034085 ACM BASL 40x57.15x7.94 mm - Radial Shaft Oil Seal Simmerring

CORTECO 01034085 ACM BASL 40x57.15x7.94 mm is a radial shaft oil seal from the Simmerring family for specified Mercedes-Benz transmission and drivetrain applications. CORTECO catalogue data confirms ACM material and the precise dimensions 40x57.15x7.94 mm. The product is also referenced as CORTECO 01034085B and 82034085. A confirmed Mercedes-Benz OE reference is 0209975747 / A0209975747.

Technical data - CORTECO 01034085

What does CORTECO 01034085 ACM BASL mean?

The complete product identification is:

CORTECO 01034085 ACM BASL 40x57.15x7.94 mm

CORTECO - manufacturer of the sealing component.

01034085 - base CORTECO product number.

01034085B - reference used for this product in aftermarket catalogue systems.

82034085 - additional CORTECO reference associated with the seal.

ACM - polyacrylate rubber used as the elastomer material.

BASL - profile designation given for 01034085 in the CORTECO dimensional catalogue.

40x57.15x7.94 mm - exact catalogue dimensions.

BASL or BA? Important CORTECO catalogue difference

Two profile descriptions may be encountered when searching for CORTECO 01034085.

The CORTECO dimensional catalogue identifies the product as:

01034085 ACM BASL 40x57.15x7.94

Other CORTECO catalogue data for:

01034085B

uses the shorter profile designation:

BA

with the same ACM material and 40x57.15x7.94 mm dimensions.

For a detailed technical product listing, the recommended primary designation is therefore:

CORTECO 01034085 ACM BASL 40x57.15x7.94 mm

The alternative BA designation remains useful for cross-searching older or differently structured CORTECO catalogue data.

Dimensions of CORTECO 01034085

The exact catalogue dimensions are:

40x57.15x7.94 mm

where:

• d = 40 mm - inside diameter
• D = 57.15 mm - outside diameter
• B = 7.94 mm - width

The non-rounded values:

57.15 mm

and:

7.94 mm

are particularly important for precise identification.

The dimensions should not be simplified to:

40x57x8 mm

because this may cause the product to be confused with a different radial shaft seal.

ACM - polyacrylate rubber

CORTECO catalogue data specifies:

ACM

for CORTECO 01034085.

ACM is a polyacrylate elastomer used in technical sealing applications, including suitable transmission and oil-system environments.

When selecting a seal, consider:

• operating fluid
• lubricant specification
• operating temperature
• shaft speed
• mating surface condition
• lubrication conditions
• transmission design
• equipment manufacturer requirements

A specific temperature range should not be assigned to CORTECO 01034085 solely from generic ACM material properties. Actual operating limits depend on the exact compound and application.

BASL construction

The CORTECO dimensional catalogue identifies the profile as:

BASL

The profile is an important part of the technical identity of this seal.

Product data for CORTECO 01034085B also confirms an additional dust lip.

When evaluating a possible replacement, consider the complete identification:

CORTECO 01034085 + ACM + BASL + 40x57.15x7.94 mm

A different radial shaft seal with similar dimensions should not automatically be considered equivalent.

Additional dust lip

CORTECO 01034085B is specified with an:

additional dust lip

The auxiliary lip helps protect the primary sealing area from contamination entering from the external side.

Depending on the installation environment, this may include:

• dust
• dirt
• fine particles
• moisture
• general operating contamination

The presence of this additional sealing feature should be considered when comparing alternative products.

CORTECO 01034085 - Mercedes-Benz application

The CORTECO dimensional catalogue associates:

01034085

with:

MERCEDES

Application data identifies CORTECO 01034085B as a shaft seal used in specified Mercedes-Benz transmission and drivetrain assemblies.

Depending on the exact assembly, catalogue data may associate the seal with transmission or transfer-case sealing positions.

This does not mean that CORTECO 01034085 is suitable for every Mercedes-Benz vehicle or transmission.

Compatibility should be confirmed using the OE reference and exact drivetrain configuration.

CORTECO 01034085 vs Mercedes-Benz 0209975747

A confirmed Mercedes-Benz OE reference is:

0209975747

It may also be written in Mercedes-Benz format as:

A0209975747

The reference relationship is therefore:

CORTECO 01034085 / 01034085B

CORTECO 82034085

MERCEDES-BENZ 0209975747

MERCEDES-BENZ A0209975747

These references provide a more reliable method of product identification than dimensions alone.

Transmission and transfer-case applications

Application data for CORTECO 01034085B associates the product with specified transmission and transfer-case shaft sealing positions.

Depending on the exact assembly, the seal may be associated with:

• transmission shaft sealing
• transfer-case sealing
• drivetrain shaft sealing
• transmission input or output positions

The exact installation position should always be confirmed using the OE reference and technical data for the specific transmission or transfer case.

Alternative designations and reference numbers

Useful identification and search variants include:

• CORTECO 01034085
• CORTECO 01034085B
• 01034085 CORTECO
• 01034085B CORTECO
• CORTECO 82034085
• CORTECO 01034085 ACM
• CORTECO 01034085 BASL
• CORTECO 01034085 BA
• CORTECO 01034085 ACM BASL
• CORTECO BASL 40x57.15x7.94
• CORTECO BA 40x57.15x7.94
• CORTECO 01034085 40x57.15x7.94
• CORTECO 01034085B 40x57.15x7.94
• Simmerring 40x57.15x7.94
• ACM Simmerring 40x57.15x7.94
• ACM oil seal 40x57.15x7.94
• radial shaft seal 40x57.15x7.94
• transmission oil seal 40x57.15x7.94
• transfer case oil seal 40x57.15x7.94
• Mercedes 0209975747
• Mercedes A0209975747

Confirmed references:

CORTECO

• 01034085
• 01034085B
• 82034085

MERCEDES-BENZ

• 0209975747
• A0209975747

Why are the exact 40x57.15x7.94 mm dimensions important?

CORTECO specifies:

40x57.15x7.94 mm

The dimensions should not be rounded to:

40x57x8 mm

Although the numerical differences appear small, the precise catalogue dimensions are important for accurate identification.

Exact dimensions also help distinguish CORTECO 01034085 from other radial shaft seals with a 40 mm inside diameter.

CORTECO 01034085 vs other 40 mm oil seals

The:

40 mm

shaft diameter alone is not sufficient to identify the correct seal.

Radial shaft seals with a 40 mm inside diameter can differ in:

• outside diameter
• width
• elastomer material
• profile
• sealing-lip construction
• application
• housing requirements

For CORTECO 01034085, the complete combination should be considered:

ACM + BASL + 40x57.15x7.94 mm

For the relevant Mercedes-Benz application, also verify:

0209975747 / A0209975747

How to select CORTECO 01034085 correctly

The safest starting point is the exact CORTECO reference:

01034085 / 01034085B

or the confirmed Mercedes-Benz OE reference:

0209975747 / A0209975747

Then verify:

1. inside diameter - 40 mm
2. outside diameter - 57.15 mm
3. width - 7.94 mm
4. ACM material
5. BASL profile
6. additional dust lip
7. exact installation position
8. transmission or transfer-case type

Selection and interchangeability checklist

Before ordering, verify:

• CORTECO 01034085 / 01034085B
• CORTECO 82034085
• Mercedes-Benz 0209975747 / A0209975747, where applicable
• d = 40 mm
• D = 57.15 mm
• B = 7.94 mm
• ACM material
• BASL profile
• additional dust lip
• transmission type
• exact installation position

Similar or rounded dimensions do not automatically confirm technical interchangeability.

Installation of CORTECO 01034085

Before installation, thoroughly clean the seal housing and mating surface.

Inspect:

• shaft surface
• wear grooves
• scratches
• burrs
• corrosion
• housing condition
• alignment
• shaft runout
• excessive play in mating components

Install the seal evenly and squarely using a suitable installation tool.

During installation, protect the sealing surfaces and auxiliary dust lip against cutting, folding or deformation.

What should be checked if the transmission seal was leaking?

If the previous seal was leaking, inspect the surrounding assembly before installing CORTECO 01034085.

Check:

• shaft sealing surface
• wear grooves
• shaft runout
• bearing play
• bearing condition
• alignment
• seal housing
• lubricant level
• correct lubricant specification
• transmission or transfer-case breather, where applicable

Replacing the Simmerring alone may not permanently solve a leak caused by shaft wear, excessive clearance, misalignment or another mechanical problem.

FAQ - CORTECO 01034085

What are the dimensions of CORTECO 01034085?

The exact catalogue dimensions are 40x57.15x7.94 mm: 40 mm inside diameter, 57.15 mm outside diameter and 7.94 mm width.

What material is CORTECO 01034085 made from?

CORTECO catalogue data specifies ACM, or polyacrylate rubber.

What is the profile of CORTECO 01034085?

The CORTECO dimensional catalogue specifies BASL. Other CORTECO catalogue data for 01034085B uses the shorter designation BA.

Does CORTECO 01034085 have an additional dust lip?

Yes. Product data for 01034085B specifies an additional dust lip.

What Mercedes-Benz OE number corresponds to CORTECO 01034085?

The confirmed Mercedes-Benz OE reference is 0209975747, also written as A0209975747.

Is 82034085 another reference for CORTECO 01034085?

Yes. 82034085 is an additional CORTECO reference associated with this product.

Is CORTECO 01034085 used as a transfer-case seal?

Application data associates 01034085B with specified transmission and transfer-case shaft sealing positions. The exact installation should be verified for the particular assembly.

Can a standard 40x57x8 mm oil seal replace CORTECO 01034085?

Automatic interchangeability should not be assumed. CORTECO specifies the precise dimensions 40x57.15x7.94 mm. ACM material, BASL profile, sealing construction and OE reference should also be verified.

CORTECO 01034085 ACM BASL 40x57.15x7.94 mm - key information

CORTECO 01034085 is an ACM Simmerring radial shaft oil seal with precise dimensions of 40x57.15x7.94 mm for specified Mercedes-Benz transmission applications. The dimensional catalogue specifies BASL, while other CORTECO data uses BA. Additional references are 01034085B and 82034085. Confirmed Mercedes-Benz OE reference: 0209975747 / A0209975747.

Availability from simmering.pl

CORTECO 01034085 ACM BASL 40x57.15x7.94 mm is available from simmering.pl for transmission specialists, repair workshops, industrial maintenance, technical procurement, distributors and B2B customers.

Products are supplied from stock in Poland, with worldwide shipping available. simmering.pl specialises in CORTECO Simmerring radial shaft seals, technical sealing solutions and bearings, with support for product identification by CORTECO reference, OE number, material, profile and dimensions.