CORTECO 01031603B ACM B1BASFAT2SLRDX7 47x78/82x11 mm - Differential Radial Shaft Oil Seal Simmerring

CORTECO 01031603B ACM B1BASFAT2SLRDX7 47x78/82x11 mm - Differential Radial Shaft Oil Seal Simmerring

CORTECO 01031603B ACM B1BASFAT2SLRDX7 47x78/82x11 mm is a specialized radial shaft oil seal from the Simmerring family, manufactured from ACM polyacrylate rubber. It has a 47 mm inside diameter, compound 78/82 mm outside diameter and 11 mm width. The seal incorporates an additional dust lip and a right-hand hydrodynamic sealing structure. It is catalogued for differential and rear axle input applications.

Technical data - CORTECO 01031603B

What does CORTECO 01031603B ACM B1BASFAT2SLRDX7 mean?

The complete product identification is:

CORTECO 01031603B ACM B1BASFAT2SLRDX7 47x78/82x11 mm

Each part of the designation helps identify the exact seal version.

CORTECO - manufacturer of the seal.

01031603B - CORTECO reference used in aftermarket catalogues.

01031603 - base reference found in the CORTECO dimensional catalogue.

82031603 - additional commercial reference associated with this product.

ACM - polyacrylate rubber used as the sealing elastomer.

B1BASFAT2SLRDX7 - complete construction designation for this specific Simmerring version.

47x78/82x11 mm - compound dimensional specification of the seal.

The complete construction designation is important when selecting an alternative. This product should not be reduced to a generic 47x78x11 mm oil seal.

Dimensions of CORTECO 01031603B

The correct dimensional specification is:

47x78/82x11 mm

where:

• d = 47 mm - inside diameter
• D1 = 78 mm - first outside diameter
• D2 = 82 mm - second outside diameter
• B = 11 mm - width

The:

78/82 mm

outside diameter specification is particularly important.

The dimensions should not be simplified to 47x78x11 mm because the second 82 mm outside diameter forms part of the actual geometry of CORTECO 01031603B.

ACM - Polyacrylate Rubber

CORTECO 01031603B is manufactured from:

ACM - Polyacrylate Rubber

ACM elastomers are used in sealing systems for drivetrains, transmissions, axles and other mechanical assemblies where compatibility with the specified lubricants and operating conditions is required.

When selecting this seal, consider:

• lubricant or oil type
• operating temperature
• shaft surface speed
• lubrication conditions
• assembly design
• shaft surface condition
• requirements of the vehicle or axle manufacturer

An exact universal temperature range is intentionally not stated because the operating limits should be based on the specific ACM compound and actual application conditions.

B1BASFAT2SLRDX7 construction

The complete construction designation is:

B1BASFAT2SLRDX7

This code is an integral part of the technical identity of CORTECO 01031603B.

The seal should not be identified simply as a standard 47x78x11 mm Simmerring.

For this specific product, catalogue data identifies:

• compound 47x78/82x11 mm geometry
• ACM elastomer
• additional dust lip
• right-hand hydrodynamic structure

These characteristics are relevant when evaluating interchangeability.

Right-hand hydrodynamic sealing structure

CORTECO 01031603B is specified with a:

right-hand hydrodynamic structure

This is an important construction feature of the sealing area.

Directional radial shaft seals use defined surface geometry in the sealing zone to support the sealing function under the intended direction of shaft rotation.

For this reason, a directional seal should not automatically be replaced by a seal with the opposite directional characteristic simply because its basic dimensions are identical.

The direction of rotation and the required seal orientation should be confirmed for the specific application before installation.

Additional dust lip

CORTECO 01031603B incorporates an:

additional dust lip

The supplementary lip helps protect the primary sealing area against contamination entering from the external environment.

This can be particularly important in differential, axle and drivetrain applications exposed to:

• dust
• dirt
• moisture
• road contamination
• other external debris

The protective lip performs a different function from the primary sealing lip and should therefore be considered when selecting an alternative.

CORTECO 01031603B differential oil seal

Aftermarket catalogues classify CORTECO 01031603B as a:

differential radial shaft oil seal

Application data also identifies installation at the:

rear axle input

This places the seal within the drivetrain and differential sealing system.

The exact installation position depends on the specific vehicle and axle design. Compatibility should therefore be confirmed through the OE reference and parts documentation for the exact vehicle or assembly.

CORTECO 01031603B vs Mercedes-Benz

Confirmed Mercedes-Benz OE references include:

0209976347

0249979947

The following Mercedes-Benz formats may also be encountered:

A0209976347

A0249979947

Searching both formats can therefore be useful when identifying the original seal.

CORTECO 01031603B is associated with Mercedes-Benz drivetrain and rear axle applications.

This does not mean that the seal is suitable for every Mercedes-Benz model. Final compatibility should be verified using the OE number, vehicle specification, axle version and installation position.

CORTECO 01031603B vs Chrysler 05114255AA

The confirmed Chrysler reference is:

05114255AA

This reference is associated with CORTECO 01031603B in aftermarket catalogue data.

When selecting the seal by the Chrysler reference, also compare:

• CORTECO 01031603B
• ACM material
• B1BASFAT2SLRDX7 construction
• 47x78/82x11 mm dimensions
• installation position

The OE cross-reference provides a much more precise basis for identification than dimensions alone.

DAF application in the CORTECO dimensional catalogue

The CORTECO dimensional catalogue lists the base reference:

01031603

with:

ACM B1BASFAT2SLRDX7 47x78/82x11

and identifies:

DAF

as an application.

This is additional catalogue information supporting product identification.

It should not be interpreted as compatibility with every DAF vehicle. The exact application should always be confirmed through the relevant OE number and vehicle or axle documentation.

Alternative designations and reference numbers

Useful identification and search variants include:

• CORTECO 01031603B
• CORTECO 01031603
• 01031603B CORTECO
• 01031603 CORTECO
• CORTECO 82031603
• CORTECO 01031603B ACM
• CORTECO 01031603B B1BASFAT2SLRDX7
• CORTECO B1BASFAT2SLRDX7
• CORTECO 01031603B 47x78/82x11
• CORTECO 47x78/82x11
• CORTECO Simmerring 47x78/82x11
• CORTECO differential oil seal
• differential seal 47x78/82x11
• Mercedes-Benz 0209976347 oil seal
• Mercedes-Benz 0249979947 oil seal
• Chrysler 05114255AA oil seal

Confirmed OE references:

CHRYSLER

• 05114255AA

MERCEDES-BENZ

• 0209976347
• 0249979947
• A0209976347
• A0249979947

Additional CORTECO reference:

CORTECO

• 82031603

CORTECO 01031603B vs 01019476B

Aftermarket catalogue information can indicate CORTECO 01031603B as a replacement for the earlier:

CORTECO 01019476B

This relationship should be interpreted as a catalogue supersession rather than an assumption that both products have identical physical construction.

Different construction or dimensional information can be encountered for the older reference.

When replacing an older 01019476B seal, use the documented catalogue replacement relationship rather than assuming equivalence solely from dimensions.

CORTECO 01031603B vs other 47x78 oil seals

Not every radial shaft seal with a 47 mm inside diameter and 78 mm basic outside diameter is interchangeable with CORTECO 01031603B.

For this product, compare:

• d = 47 mm
• D1 = 78 mm
• D2 = 82 mm
• B = 11 mm
• ACM material
• B1BASFAT2SLRDX7 construction
• additional dust lip
• right-hand hydrodynamic structure
• OE reference
• installation position

The second:

82 mm outside diameter

is particularly important.

A generic seal described only as 47x78x11 mm should not automatically be considered a replacement for CORTECO 01031603B.

How to select CORTECO 01031603B correctly

The safest method is to identify the complete:

CORTECO 01031603B

reference or the corresponding OE number.

For Mercedes-Benz applications, check:

0209976347

or:

0249979947

For Chrysler applications, check:

05114255AA

Then verify:

• ACM material
• B1BASFAT2SLRDX7 construction
• 47x78/82x11 mm geometry
• right-hand hydrodynamic structure
• additional dust lip
• exact installation position

This approach reduces the risk of selecting a dimensionally similar but technically different seal.

Selection and interchangeability checklist

Before purchasing CORTECO 01031603B, verify:

• CORTECO reference 01031603B
• base reference 01031603
• ACM material
• B1BASFAT2SLRDX7 construction
• 47 mm inside diameter
• 78/82 mm outside diameter
• 11 mm width
• right-hand hydrodynamic structure
• additional dust lip
• OE reference
• exact installation position

Matching basic dimensions do not automatically confirm complete technical interchangeability.

This is particularly important for a specialized seal with compound outside diameter geometry and directional sealing features.

Installation of CORTECO 01031603B

Before installation, thoroughly clean the shaft and seal housing.

Inspect the sealing surface for:

• scratches
• corrosion
• burrs
• wear grooves
• mechanical damage
• sharp edges

Protect both the primary sealing lip and the additional dust lip during installation.

Particular attention should be paid to the correct seal orientation because CORTECO 01031603B has a directional right-hand hydrodynamic sealing structure.

The seal should be pressed into the housing evenly and squarely using an appropriate installation tool.

Avoid direct impact on the functional sealing elements.

What should be checked when a differential seal is leaking?

If the previous seal was leaking, replacing the Simmerring alone may not eliminate the cause.

Also inspect:

• shaft sealing surface
• wear groove
• shaft runout
• bearing condition
• bearing play
• alignment
• seal housing
• installation position

A worn shaft, excessive movement or damaged bearing system can cause leakage even after the correct CORTECO 01031603B has been installed.

FAQ - CORTECO 01031603B

What are the dimensions of CORTECO 01031603B?

CORTECO 01031603B has a 47 mm inside diameter, 78 mm first outside diameter, 82 mm second outside diameter and 11 mm width. The correct dimensional specification is 47x78/82x11 mm.

What material is CORTECO 01031603B made from?

The seal is manufactured from ACM polyacrylate rubber.

What is the construction of CORTECO 01031603B?

The complete construction designation is B1BASFAT2SLRDX7.

Does CORTECO 01031603B have a dust lip?

Yes. Catalogue data identifies an additional dust lip for this seal.

Is CORTECO 01031603B a directional oil seal?

Yes. The product is specified with a right-hand hydrodynamic sealing structure.

What Mercedes-Benz references correspond to CORTECO 01031603B?

Confirmed references include Mercedes-Benz 0209976347 and 0249979947. They can also be encountered as A0209976347 and A0249979947.

What Chrysler reference corresponds to CORTECO 01031603B?

The confirmed Chrysler reference is 05114255AA.

Can a standard 47x78x11 oil seal replace CORTECO 01031603B?

No automatic interchangeability should be assumed. CORTECO 01031603B has compound 47x78/82x11 mm geometry, ACM material, B1BASFAT2SLRDX7 construction, an additional dust lip and a right-hand hydrodynamic structure.

CORTECO 01031603B ACM B1BASFAT2SLRDX7 47x78/82x11 mm - key information

CORTECO 01031603B is an ACM differential radial shaft oil seal with B1BASFAT2SLRDX7 construction and compound 47x78/82x11 mm dimensions. It incorporates an additional dust lip and a right-hand hydrodynamic structure. Confirmed OE references include Mercedes-Benz 0209976347 / 0249979947 and Chrysler 05114255AA.

Availability from simmering.pl

CORTECO 01031603B ACM B1BASFAT2SLRDX7 47x78/82x11 mm is available from simmering.pl for differential and drivetrain 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.