CORTECO 12015554B 21.8x35x7 ACM BASLRDX7 Gearbox Shaft Seal

CORTECO 12015554B is an ACM radial shaft seal for gearbox applications, measuring 21.8x35x7 mm. Its exact CORTECO design designation is BASLRDX7 Simmerring. The seal incorporates an additional dust lip and a right-hand hydrodynamic sealing structure, making rotational direction an important part of its technical identification.

CORTECO 12015554B - Product Characteristics

The 12015554B reference is catalogued as a gearbox / transmission shaft seal. The additional CORTECO trade number is 82015554, while the specified construction is BASLRDX7.

The complete product identification is:

CORTECO 12015554B -> 21.8x35x7 mm -> ACM -> BASLRDX7 -> right-hand hydrodynamic design -> additional dust lip

This complete specification provides a more reliable basis for replacement selection than the 21.8x35x7 mm dimensions alone.

Dimensions 21.8x35x7 mm

The dimensional specification is:

Inside Diameter: 21.8 mm
Outside Diameter: 35 mm
Width: 7 mm
Complete Size: 21.8x35x7 mm

Some aftermarket listings round the inside diameter to 22 mm, but the more precise dimensional specification for this CORTECO reference is 21.8 mm. For technical identification, the 21.8 mm value should therefore be retained.

BASLRDX7 Construction

The exact CORTECO design designation is BASLRDX7.

For 12015554B, the construction includes an additional dust lip, providing an additional barrier on the external side of the primary sealing area.

Another important characteristic is the right-hand hydrodynamic structure of the sealing lip. This directional feature is intended to interact with shaft rotation and therefore forms part of the product's technical configuration.

Consequently, a non-directional seal or a seal with an opposite hydrodynamic direction should not automatically be considered equivalent merely because it has the same dimensions.

ACM Material

CORTECO 12015554B is manufactured using ACM (polyacrylate rubber).

The elastomer specification should be considered together with the dimensions and BASLRDX7 design when selecting a replacement. An NBR, FKM or other elastomer seal measuring 21.8x35x7 mm should not automatically be treated as technically identical.

No specific operating temperature range is stated here because a product-specific temperature specification for this exact CORTECO reference has not been reliably confirmed.

Gearbox Shaft Seal Application

CORTECO 12015554B is catalogued as a gearbox / manual transmission shaft seal. It is also listed in some application catalogues as a gear selector shaft seal.

The exact installation position depends on the transmission and vehicle configuration. For this reason, gearbox shaft seal is the safer general technical description, while a specific selector-shaft application should be confirmed against the OE reference or transmission catalogue.

VAG OE References

The principal OE numbers associated with CORTECO 12015554B are:

AUDI: 084311113, 085311113
SEAT: 084311113, 085311113
SKODA: 084311113, 085311113
VOLKSWAGEN: 084311113, 085311113

These VAG OE references provide a stronger basis for application identification than vehicle model names alone.

Other catalogue cross-references include:

ELRING: 191.320
FEBI BILSTEIN: 43420
HUTCHINSON: 702727
SWAG: 30 94 3420
AKRON-MALÒ: 11636RDAC

Cross-reference numbers should still be checked against the required dimensions, material, sealing design and application before interchangeability is assumed.

Audi, SEAT, Skoda and Volkswagen Applications

Application catalogues associate CORTECO 12015554B with selected versions of vehicles including Audi A1, A2, A3 and TT; SEAT Altea, Arona, Arosa, Ateca and Cordoba; Skoda Fabia, Octavia, Roomster, Superb and Yeti; and Volkswagen Golf, Bora and Transporter.

This does not mean that the seal fits every version of these models. Different transmissions and sealing arrangements can be used within the same vehicle range.

For application verification, the preferred selection sequence is:

OE number -> transmission code / vehicle version -> seal dimensions and construction

Where available, checking by VIN provides an additional application verification method.

Selection and Interchangeability

When selecting a replacement for CORTECO 12015554B, verify:

• CORTECO reference 12015554B
• OE number 084311113 or 085311113
• 21.8 mm inside diameter
• 35 mm outside diameter
• 7 mm width
• ACM material
• BASLRDX7 design
• additional dust lip
• right-hand hydrodynamic structure
• gearbox and installation position

Matching the 21.8x35x7 mm dimensions alone does not establish full technical interchangeability.

Technical Specification

Manufacturer: CORTECO
Part Number: 12015554B
Additional CORTECO Number: 82015554
Product Type: Gearbox shaft seal / radial shaft seal
Design: BASLRDX7
Trade Designation: BASLRDX7 Simmerring
Dimensions: 21.8x35x7 mm
Inside Diameter: 21.8 mm
Outside Diameter: 35 mm
Width: 7 mm
Material: ACM - Polyacrylate Rubber
Dust Protection: Additional dust lip
Hydrodynamic Direction: Right-hand
VAG OE: 084311113, 085311113
EAN: 3358960155542

FAQ

What are the dimensions of CORTECO 12015554B?

The exact dimensions are 21.8x35x7 mm: 21.8 mm inside diameter, 35 mm outside diameter and 7 mm width.

What material is CORTECO 12015554B made from?

This reference is manufactured using ACM (polyacrylate rubber).

What does BASLRDX7 mean?

BASLRDX7 is the CORTECO design designation specified for this exact shaft seal. It should be retained when identifying or comparing the product rather than relying only on dimensions.

Does CORTECO 12015554B have a dust lip?

Yes. The construction includes an additional dust lip that provides an additional barrier against external contamination.

Is CORTECO 12015554B a directional oil seal?

Yes. This reference has a right-hand hydrodynamic sealing structure. Directionality is therefore an important parameter when selecting an equivalent.

What OE numbers correspond to CORTECO 12015554B?

The principal VAG OE references are 084311113 and 085311113, associated with applications from Audi, SEAT, Skoda and Volkswagen.

Does CORTECO 12015554B fit a VW Golf?

The reference is listed for selected Volkswagen Golf applications, but compatibility should not be determined by model name alone. The OE number, transmission version/code or VIN should be checked.

Can any 21.8x35x7 oil seal replace CORTECO 12015554B?

No. In addition to dimensions, verify the ACM material, BASLRDX7 construction, dust lip, hydrodynamic direction and OE/application data.

AI Overview

CORTECO 12015554B is an ACM gearbox shaft seal measuring 21.8x35x7 mm. It uses the BASLRDX7 construction with an additional dust lip and a right-hand hydrodynamic sealing structure. The reference is associated with VAG OE numbers 084311113 and 085311113 for selected Audi, SEAT, Skoda and Volkswagen applications.

SHORT DESCRIPTION

CORTECO 12015554B is an ACM gearbox radial shaft seal measuring 21.8x35x7 mm. The exact design designation is BASLRDX7 Simmerring. The seal incorporates an additional dust lip and a right-hand hydrodynamic sealing structure. Additional CORTECO number: 82015554; EAN: 3358960155542. VAG OE references: 084311113, 085311113. Application catalogues list selected Audi, SEAT, Skoda and Volkswagen vehicles; compatibility should be verified by OE number, transmission code or VIN.