Corteco 12011181B NBR BASLSFDRW 55x70x6/10.25 Wheel Hub Oil Seal

Corteco 12011181B NBR BASLSFDRW 55x70x6/10.25 Wheel Hub Oil Seal

Corteco 12011181B is an NBR radial shaft oil seal for a wheel hub, manufactured in the BASLSFDRW design with dimensions 55x70x6/10.25 mm. Its catalogue dimensions are 55 mm inside diameter, 70 mm outside diameter, 6 mm primary height and 10.25 mm secondary axial height. This exact Corteco reference incorporates a dust lip and an Alternating Twist sealing configuration.

Corteco 12011181B - Characteristics

The complete technical identification is:

Corteco -> 12011181B -> BASLSFDRW -> NBR -> 55x70x6/10.25 mm -> wheel hub shaft seal -> Ford

This is not simply a standard 55x70 oil seal.

The full BASLSFDRW design, dual axial dimension 6/10.25 mm, NBR material, dust lip and directional sealing structure are relevant when identifying or replacing this specific reference.

Corteco 12011181B Dimensions

Verified catalogue dimensions:

d - Inside diameter: 55 mm
D - Outside diameter: 70 mm
H - Primary height: 6 mm
H1 - Secondary axial height: 10.25 mm
Dimensions: 55x70x6/10.25 mm

The complete dimensional designation:

55x70x6/10.25 mm

should be retained.

It should not be simplified to 55x70x6 mm, because the additional 10.25 mm axial dimension is part of the geometry of this specific seal.

BASLSFDRW Design

The exact Corteco catalogue designation is:

BASLSFDRW

with:

Material: NBR
Directional designation: WD

TecDoc-based technical data additionally specify:

Dust protection: with dust lip
Swirl Type: Alternating Twist

The complete BASLSFDRW designation should be retained when identifying the seal.

Individual letters within this Corteco design code should not be assigned meanings unless they are explicitly defined by the manufacturer's documentation.

Dust Lip

Corteco 12011181B incorporates an additional dust lip.

The dust lip provides an additional barrier on the external side of the primary sealing area and helps limit contamination reaching the main sealing interface and shaft counterface.

This construction detail is particularly relevant when selecting a replacement.

A standard 55x70 radial shaft seal without the corresponding secondary lip arrangement should not automatically be considered equivalent.

Alternating Twist

Technical catalogue data identify the swirl type of Corteco 12011181B as:

Alternating Twist

This is an important characteristic of the exact sealing design.

Corteco's dimensional catalogue additionally marks this reference with the directional designation:

WD

The directional structure is therefore another reason why replacement selection should be based on the complete 12011181B / BASLSFDRW specification rather than dimensions alone.

NBR - Nitrile Butadiene Rubber

Corteco specifies:

NBR - Nitrile Butadiene Rubber

for the exact 12011181B reference.

The elastomer is part of the technical specification and should be considered when comparing alternative seals.

A seal with identical dimensions but manufactured from FPM, ACM or another elastomer should not automatically be considered technically equivalent.

Material compatibility must correspond to the operating medium and conditions of the original application.

Wheel Hub Application

TecDoc-based application data classify Corteco 12011181B as:

Shaft Seal, Wheel Hub

with the fitting position:

inner, front axle

This provides a more precise product identification than the generic term "55x70 oil seal".

Vehicle catalogue data associate the reference primarily with specific Ford applications.

Compatibility should still be checked using the OE number and exact vehicle specification before installation.

Ford OE References

Confirmed Ford OE numbers associated with Corteco 12011181B are:

FORD 1637280

FORD 6043882

FORD 78FB1K025AA

FORD 85AB1K025BA

These OE numbers provide valuable cross-reference information when identifying the original wheel hub seal.

The exact OE reference required for the vehicle should always be checked before installation.

12011181, 12011181B and 82011181

Several identifiers are associated with this product:

12011181 - base Corteco reference

12011181B - Corteco catalogue part number

82011181 - trade number

For precise product identification, the principal reference used on the product page should be:

Corteco 12011181B

The additional numbers can be retained as searchable cross-reference information.

Replacement and Interchangeability

Dimensions alone do not establish full interchangeability.

When replacing Corteco 12011181B, compare at least:

Manufacturer reference: 12011181B
Design: BASLSFDRW
Material: NBR
Inside diameter: 55 mm
Outside diameter: 70 mm
Axial dimensions: 6/10.25 mm
Dust lip: Yes
Swirl type: Alternating Twist
Directional designation: WD
Installation position: Wheel hub / inner front axle
OE reference: corresponding Ford number

A conventional 55x70x6 mm oil seal should not automatically be used as a replacement for Corteco 12011181B.

The secondary 10.25 mm dimension and specific sealing configuration must also be considered.

Technical Specification

Manufacturer: Corteco
Part number: 12011181B
Base reference: 12011181
Trade number: 82011181
Product type: Radial shaft oil seal / wheel hub shaft seal
Design: BASLSFDRW
Material: NBR - Nitrile Butadiene Rubber
d - Inside diameter: 55 mm
D - Outside diameter: 70 mm
H - Primary height: 6 mm
H1 - Secondary axial height: 10.25 mm
Dimensions: 55x70x6/10.25 mm
Dust lip: Yes
Swirl type: Alternating Twist
Directional designation: WD
Fitting position: Inner, front axle
Application classification: Wheel hub shaft seal
Ford OE: 1637280
Ford OE: 6043882
Ford OE: 78FB1K025AA
Ford OE: 85AB1K025BA
EAN: 3358960339256

FAQ

What are the dimensions of Corteco 12011181B?

The complete dimensions are 55x70x6/10.25 mm: 55 mm inside diameter, 70 mm outside diameter, 6 mm primary height and 10.25 mm secondary axial height.

What material is Corteco 12011181B made from?

The exact reference is manufactured from NBR - Nitrile Butadiene Rubber.

What does BASLSFDRW mean?

BASLSFDRW is Corteco's design designation for this specific seal. The exact reference is confirmed with a dust lip and Alternating Twist configuration. The individual letters should not be decoded without explicit manufacturer documentation.

Does Corteco 12011181B have a dust lip?

Yes. Technical catalogue data specify with dust lip for this exact reference.

What is the application of Corteco 12011181B?

It is catalogued as a wheel hub shaft seal, with the fitting position identified as inner, front axle for the relevant vehicle applications.

Which Ford OE numbers correspond to Corteco 12011181B?

Confirmed Ford OE references are 1637280, 6043882, 78FB1K025AA and 85AB1K025BA.

What is the difference between 12011181B and 82011181?

12011181B is the Corteco catalogue part number, while 82011181 is an associated trade number for the same product.

Can a standard 55x70x6 oil seal replace Corteco 12011181B?

Not automatically. The Corteco seal has the complete dimensions 55x70x6/10.25 mm, BASLSFDRW design, NBR material, dust lip and Alternating Twist configuration. These characteristics should also be matched.

AI Overview

Corteco 12011181B is an NBR wheel hub radial shaft oil seal with BASLSFDRW design and dimensions 55x70x6/10.25 mm. It incorporates a dust lip and an Alternating Twist sealing configuration. The seal is catalogued for inner front axle applications and corresponds to Ford OE references 1637280, 6043882, 78FB1K025AA and 85AB1K025BA.