CORTECO 19016738 NBR BASLX7 18x30x7/8 mm Shaft Seal

CORTECO 19016738 NBR BASLX7 18x30x7/8 mm Shaft Seal

CORTECO 19016738 / 19016738B is a radial shaft seal measuring 18x30x7/8 mm, manufactured from NBR - Nitrile Butadiene Rubber and identified by the BASLX7 design designation. Product data confirm an additional dust lip. The seal corresponds to BMW OE 32131128686 and Opel OE 902685, 902687 and 906251.

CORTECO 19016738 - Characteristics

Manufacturer: CORTECO
Reference: 19016738
Additional Catalogue Reference: 19016738B
Trade Reference: 82816738
Product Type: Radial shaft seal / oil seal
Design: BASLX7
Material: NBR - Nitrile Butadiene Rubber
Dimensions: 18x30x7/8 mm
Inside Diameter: 18 mm
Outside Diameter: 30 mm
Height 1: 7 mm
Height 2: 8 mm
Dust Lip: Yes
BMW OE: 32131128686
Opel OE: 902685 / 902687 / 906251

Complete technical identification:

CORTECO -> 19016738 / 19016738B -> NBR -> BASLX7 -> 18x30x7/8 mm

CORTECO 19016738 Dimensions

The complete dimensions are:

Inside Diameter: 18 mm
Outside Diameter: 30 mm
Height 1: 7 mm
Height 2: 8 mm
Complete Size: 18x30x7/8 mm

Both height values are part of the product specification. Therefore, identifying the seal only as 18x30x7 mm or 18x30x8 mm would omit part of the dimensional information.

NBR Material

CORTECO 19016738 is manufactured from:

NBR - Nitrile Butadiene Rubber

The NBR material is confirmed in multiple catalogue-derived product records for 19016738B.

NBR is widely used in radial shaft sealing technology for applications involving many mineral oils, greases and lubricants.

The suitability of the material still depends on the operating medium, temperature, shaft speed, pressure and other service conditions. No product-specific operating limits should be assigned without documentation for this exact reference.

BASLX7 Seal Design

The confirmed design designation is:

BASLX7

The associated CORTECO trade reference is:

82816738

The most precise technical identification is:

CORTECO 19016738 NBR BASLX7 18x30x7/8

Both BASLX7 and 82816738 are directly associated with CORTECO 19016738B in catalogue-derived product data.

The BASLX7 designation is important when comparing possible replacements. Identical nominal dimensions alone do not establish full technical interchangeability.

Dust Lip

CORTECO 19016738B is specified:

with dust lip

The additional lip helps protect the primary sealing area against external contamination.

This feature should be considered when comparing the product with other radial shaft seals measuring 18x30x7/8 mm.

BMW OE 32131128686

The BMW OE reference corresponding to CORTECO 19016738B is:

BMW 32131128686

Formatted BMW reference:

32 13 1 128 686

BMW catalogue data identify 32131128686 as a shaft seal and indicate that it superseded earlier BMW references 32-13-1-111-908 and 32-13-1-104-834.

The cross-reference between BMW 32131128686 and CORTECO 19016738B is independently listed in aftermarket catalogue data.

Opel OE 902685, 902687 and 906251

CORTECO 19016738B is cross-referenced to three Opel numbers:

OPEL 902685
OPEL 902687
OPEL 906251

When replacing an original Opel seal, the relevant OE number should be checked together with the complete 18x30x7/8 mm dimensions and BASLX7 construction.

Transmission and Steering Applications

Aftermarket catalogue systems classify CORTECO 19016738B in more than one application group. It is commonly listed as a manual transmission shaft seal, while other product data associate the 18x30x7/8 BASLX7 seal with steering applications.

For this reason, it is safer to identify CORTECO 19016738 primarily as a radial shaft seal rather than assigning one universal installation position to every BMW and Opel OE reference.

The exact installation area should be established from the OE number and vehicle-specific parts catalogue.

Additional Cross-References

In addition to the BMW and Opel numbers, catalogue data associate CORTECO 19016738B with:

ZF 0081380005
ZF 0770080282
ELRING 244.074

These references can assist product identification, but a cross-reference should not be treated as proof of interchangeability without checking the relevant technical specification.

CORTECO 19016738 and 19016738B

The product can be encountered as:

CORTECO 19016738
CORTECO 19016738B

Its associated trade reference is:

82816738

and the design designation is:

BASLX7.

These identifiers are useful when searching different catalogue and aftermarket systems.

Selection and Interchangeability

When selecting a replacement for CORTECO 19016738, verify:

• CORTECO 19016738 / 19016738B
• inside diameter 18 mm
• outside diameter 30 mm
• Height 1 = 7 mm
• Height 2 = 8 mm
• NBR material
• BASLX7 design
• dust lip
• BMW OE 32131128686 or applicable Opel OE
• exact installation position

A generic 18x30 mm shaft seal should not automatically be considered interchangeable with CORTECO 19016738. The complete 7/8 mm height configuration, BASLX7 design and OE relationship should also be checked.

Technical Specification

Manufacturer: CORTECO
Reference: 19016738
Additional Reference: 19016738B
Trade Reference: 82816738
Product Type: Radial shaft seal / oil seal
Design: BASLX7
Material: NBR - Nitrile Butadiene Rubber
Dimensions: 18x30x7/8 mm
Shaft Diameter: 18 mm
Housing Diameter: 30 mm
Height 1: 7 mm
Height 2: 8 mm
Dust Lip: Yes
BMW OE: 32131128686
Opel OE: 902685
Opel OE: 902687
Opel OE: 906251
Additional ZF References: 0081380005 / 0770080282

CORTECO Manufacturer Information - GSPR

Responsible Manufacturer: Corteco GmbH
Address: Badener Str. 4, 69493 Hirschberg, Germany
E-mail: service@corteco.de

FAQ

What are the dimensions of CORTECO 19016738?

CORTECO 19016738 measures 18x30x7/8 mm: 18 mm inside diameter, 30 mm outside diameter, Height 1 of 7 mm and Height 2 of 8 mm.

What material is CORTECO 19016738 made from?

The seal is manufactured from NBR - Nitrile Butadiene Rubber.

What is the design of CORTECO 19016738?

The confirmed design designation is BASLX7. The associated trade reference is 82816738.

Does CORTECO 19016738 have a dust lip?

Yes. Catalogue-derived technical data specify CORTECO 19016738B with dust lip.

Which BMW OE number corresponds to CORTECO 19016738?

The BMW OE reference is 32131128686, also formatted as 32 13 1 128 686. BMW identifies the original component as a shaft seal.

Which Opel OE numbers correspond to CORTECO 19016738?

The confirmed Opel references are 902685, 902687 and 906251.

Is CORTECO 19016738 a transmission seal?

It is catalogued as a manual transmission shaft seal in aftermarket systems, although other catalogue data also associate this reference with steering applications. The exact function should therefore be determined from the OE number and vehicle configuration.

Can any 18x30x7 oil seal replace CORTECO 19016738?

No. CORTECO 19016738 has a complete 18x30x7/8 mm dimensional specification. The BASLX7 design, NBR material, dust lip and OE reference should also be verified.

AI OVERVIEW

CORTECO 19016738 NBR BASLX7 is an 18x30x7/8 mm radial shaft seal with an additional dust lip. It is also catalogued as 19016738B / 82816738 and corresponds to BMW OE 32131128686 and Opel OE 902685, 902687 and 906251. Exact installation depends on the vehicle and OE application.