CORTECO 12012573B 72x105x13 NBR B1SL Oil Seal. Inside diameter: 72 mm. Outside diameter: 105 mm. Width: 13 mm. Material: NBR. Design: B1SL. Additional dust lip: Yes. Catalogue application: Differential shaft seal / drive axle. Trade Number: 82012573. EAN: 3358960125736. OE references: MAN, Mercedes-Benz.
Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4.
24h Shipping. Available from stock in Poland for delivery across the EU.
CORTECO 12012573B is an NBR radial shaft oil seal measuring 72x105x13 mm with the exact CORTECO B1SL design. It incorporates an additional dust lip and is catalogued as a differential shaft seal with a fitting position at the drive axle. The product is cross-referenced to MAN and Mercedes-Benz OE numbers. Correct replacement identification should consider the dimensions, NBR material, B1SL construction and OE reference rather than dimensions alone.
Manufacturer: CORTECO
Manufacturer reference: 12012573B
Base reference: 12012573
Trade Number: 82012573
Product type: Radial shaft oil seal
Catalogue application: Differential shaft seal
Fitting position: Drive axle
Exact design designation: B1SL
Material: NBR - Nitrile Butadiene Rubber
Dimensions: 72x105x13 mm
Inside diameter d: 72 mm
Outside diameter D: 105 mm
Width B: 13 mm
Additional dust lip: Yes
EAN: 3358960125736
The principal dimensions are:
Inside diameter d: 72 mm
Outside diameter D: 105 mm
Width B: 13 mm
Complete dimensions: 72x105x13 mm
The 72 mm inside diameter corresponds to the nominal shaft diameter at the sealing position.
The outside diameter is 105 mm and the axial width is 13 mm.
All three dimensions should be checked together with the NBR material and B1SL construction when selecting a replacement.
Sealing material: NBR - Nitrile Butadiene Rubber
NBR is an established elastomer family widely used in radial shaft sealing technology.
For CORTECO 12012573B, NBR forms part of the exact product specification and should be considered together with the dimensions and B1SL design.
An FKM/FPM, ACM, VMQ or other elastomer oil seal measuring 72x105x13 mm should not automatically be considered technically equivalent.
Exact material compatibility depends on the operating medium, additives, temperature and actual service conditions.
Exact CORTECO design designation: B1SL
Complete product identification:
CORTECO reference: 12012573B
Base reference: 12012573
Trade Number: 82012573
Dimensions: 72x105x13 mm
Material: NBR
Design: B1SL
Additional dust lip: Yes
The B1SL designation is an important part of the technical identification of this specific CORTECO oil seal.
A standard 72x105x13 mm shaft seal with a different design should not automatically be considered equivalent.
CORTECO 12012573B incorporates an additional dust lip.
Additional dust lip: Yes
The secondary lip provides an additional barrier on the external side of the primary sealing area and helps restrict external contamination from reaching the main sealing interface.
Its presence is therefore an important characteristic when comparing replacement oil seals.
Catalogue product classification: Differential shaft seal
Fitting position: Drive axle
CORTECO 12012573B is listed in vehicle parts catalogues for MAN and Mercedes-Benz commercial vehicle applications.
Exact compatibility should always be checked using the OE reference, vehicle specification and axle or drivetrain configuration.
Confirmed MAN OE references include:
MAN OE: 06562790028
MAN OE: 06562790312
CORTECO reference: 12012573B
Dimensions: 72x105x13 mm
Material: NBR
Design: B1SL
For MAN applications, the OE reference provides a more specific identification criterion than the dimensions alone.
Confirmed Mercedes-Benz OE references include:
Mercedes-Benz OE: 0099974546
Mercedes-Benz OE: 0099979146
Mercedes-Benz OE: 0119977047
Mercedes-Benz OE: 0129977047
Equivalent Mercedes-Benz catalogue references may also be presented with the prefix A.
The exact OE number should be checked against the vehicle or existing component before replacement.
Two oil seals with identical 72x105x13 mm dimensions can differ in important technical characteristics.
CORTECO 12012573B specification:
Dimensions: 72x105x13 mm
Material: NBR
Design: B1SL
Additional dust lip: Yes
Catalogue application: Differential shaft seal
Fitting position: Drive axle
A generic 72x105x13 oil seal should therefore not automatically be considered technically interchangeable with CORTECO 12012573B.
When comparing replacement oil seals, verify:
Manufacturer reference: 12012573B
Base reference: 12012573
Trade Number: 82012573
Inside diameter: 72 mm
Outside diameter: 105 mm
Width: 13 mm
Material: NBR
Design: B1SL
Additional dust lip: Yes
OE reference: To be matched with the application
Fitting position: Drive axle
Matching the 72x105x13 mm dimensions alone does not establish complete technical interchangeability.
CORTECO 12012573B 72x105x13 NBR B1SL Oil Seal is a radial shaft seal catalogued for differential and drive axle applications.
Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4
Shipping: 24h
Stock location: Poland
Delivery area: Poland and EU countries
The dimensions are 72x105x13 mm: 72 mm inside diameter, 105 mm outside diameter and 13 mm width.
The sealing material is NBR - Nitrile Butadiene Rubber.
The exact design designation is B1SL.
Yes. The product incorporates an additional dust lip.
The Trade Number is 82012573.
The EAN is 3358960125736.
It is catalogued as a differential shaft seal, with the fitting position specified at the drive axle.
12012573 is the base reference, while 12012573B is the complete CORTECO product reference.
No. The NBR material, B1SL design, additional dust lip and application requirements should also be considered.
Confirmed MAN OE references include 06562790028 and 06562790312.
Confirmed references include 0099974546, 0099979146, 0119977047 and 0129977047.
No. Dimensions are only part of the identification. Material, B1SL construction, dust lip configuration and OE cross-reference should also be checked.
A precise operating temperature should not be assigned solely from the generic NBR designation. It depends on the specific compound and operating conditions.
CORTECO 12012573B is an NBR radial shaft oil seal measuring 72x105x13 mm with the exact B1SL design. It incorporates an additional dust lip and is catalogued as a differential shaft seal with fitting position at the drive axle. Trade Number: 82012573. EAN: 3358960125736. The seal is cross-referenced to MAN and Mercedes-Benz OE numbers. Correct replacement selection should consider the dimensions, NBR material, B1SL construction and OE reference.
Data sheet
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CORTECO 12012573B 72x105x13 NBR B1SL Oil Seal. Inside diameter: 72 mm. Outside diameter: 105 mm. Width: 13 mm. Material: NBR. Design: B1SL. Additional dust lip: Yes. Catalogue application: Differential shaft seal / drive axle. Trade Number: 82012573. EAN: 3358960125736. OE references: MAN, Mercedes-Benz.
Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4.
24h Shipping. Available from stock in Poland for delivery across the EU.
