CORTECO 12019250B 40x52x7 FPM B1BASLRDX7 Front Crankshaft Oil Seal

CORTECO 12019250B 40x52x7 FPM B1BASLRDX7 Front Crankshaft Oil Seal

CORTECO 12019250B is a front crankshaft radial shaft oil seal with exact dimensions of 40x52x7 mm. It is manufactured from FPM - Fluoroelastomer Rubber and uses the catalogue design B1BASLRDX7.

The seal incorporates an additional dust lip and Right-hand Twist sealing geometry. Catalogue data specify installation at the front side of the crankshaft.

CORTECO 12019250B Technical Specification

Manufacturer: CORTECO

Full reference: 12019250B

Base reference: 12019250

Trade Number: 82019250

Product type: Front crankshaft oil seal

Fitting position: Front / frontal side

Design: B1BASLRDX7

Material: FPM - Fluoroelastomer Rubber

Dimensions: 40x52x7 mm

Inside diameter d: 40 mm

Outside diameter D: 52 mm

Width B: 7 mm

Additional dust lip: Yes

Swirl Type: Right-hand Twist

EAN: 3358960144959

CORTECO 12019250B Dimensions

The exact dimensions are:

Inside diameter d: 40 mm

Outside diameter D: 52 mm

Width B: 7 mm

Complete dimensions: 40x52x7 mm

The 40 mm dimension corresponds to the nominal shaft diameter, 52 mm to the outside diameter and 7 mm to the seal width.

When identifying a replacement, all three dimensions should be checked together with the FPM material, B1BASLRDX7 design, dust lip and Right-hand Twist geometry.

A generic 40x52x7 mm seal should not automatically be considered technically interchangeable.

B1BASLRDX7 Oil Seal Design

The catalogue design associated with CORTECO 12019250B is:

B1BASLRDX7

The complete technical identification is:

CORTECO 12019250B

40x52x7 mm

FPM

B1BASLRDX7

Additional dust lip

Right-hand Twist

The complete design is important when comparing this product with other 40x52x7 mm radial shaft seals. Identical dimensions alone do not establish equivalent sealing construction.

Additional Dust Lip

CORTECO 12019250B incorporates an additional dust lip.

The additional lip forms a secondary barrier on the external side of the primary sealing area and helps limit the ingress of contamination toward the main sealing lip.

This feature forms part of the exact product specification and should be considered when selecting a replacement.

Right-hand Twist

Swirl Type: Right-hand Twist

The sealing geometry of CORTECO 12019250B is specified as Right-hand Twist.

Directional sealing geometry is an important distinction when comparing crankshaft seals. A seal with Left-hand Twist, Alternating Twist or a non-directional design should not automatically be treated as an equivalent solely because it has the same dimensions.

FPM - Fluoroelastomer Rubber

The specified sealing material is FPM - Fluoroelastomer Rubber.

FPM is part of the exact specification of CORTECO 12019250B and should be considered together with the dimensions and sealing design.

An NBR or ACM seal measuring 40x52x7 mm should not automatically be considered an equivalent replacement.

Front Crankshaft Application

CORTECO 12019250B is catalogued as a crankshaft oil seal with the fitting position specified at the front / frontal side.

This application-specific identification is more precise than describing the product simply as a generic rotary shaft seal or 40x52x7 oil seal.

For vehicle-specific selection, the OE number, engine configuration and fitting position should be verified before installation.

OE References

ALFA ROMEO: 55186757

FIAT: 55186757

LANCIA: 55186757

GENERAL MOTORS: 55186758, 93177701

OPEL: 646089, 646910

DAF: 100CP5143, 1447221, FBU5115

MAN: 81965030431

RENAULT TRUCKS: 5001856970

SUZUKI: 1611485E00

VOLVO: 85103232

OE references provide a more application-specific identification path than dimensions alone. The appropriate OE number should be checked against the exact vehicle and engine configuration.

CORTECO 12019250B vs Standard 40x52x7 Oil Seal

The exact CORTECO specification is:

Dimensions: 40x52x7 mm

Material: FPM

Design: B1BASLRDX7

Additional dust lip: Yes

Swirl Type: Right-hand Twist

Application: Front crankshaft

A standard 40x52x7 mm oil seal may differ in material, lip configuration, directional geometry or intended application. Therefore, dimensional compatibility alone does not confirm technical interchangeability.

How to Identify CORTECO 12019250B

For accurate identification, verify:

CORTECO reference: 12019250B

Base reference: 12019250

Trade Number: 82019250

Dimensions: 40x52x7 mm

Material: FPM

Design: B1BASLRDX7

Dust lip: Yes

Swirl Type: Right-hand Twist

Application: Front crankshaft

OE reference: According to the specific vehicle

This combination provides substantially more reliable identification than searching only by the 40x52x7 mm dimensions.

CORTECO 12019250B - Stock in Poland

Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4

24h Shipping. Available from stock in Poland for delivery across the EU.

FAQ - CORTECO 12019250B

What are the dimensions of CORTECO 12019250B?

The exact dimensions are 40x52x7 mm.

What material is CORTECO 12019250B made from?

The specified material is FPM - Fluoroelastomer Rubber.

What is the design of CORTECO 12019250B?

The catalogue design is B1BASLRDX7.

Does CORTECO 12019250B have a dust lip?

Yes. Catalogue data specify an additional dust lip.

What is the Swirl Type?

The specified Swirl Type is Right-hand Twist.

Is CORTECO 12019250B a crankshaft oil seal?

Yes. It is catalogued as a crankshaft oil seal for installation at the front / frontal side.

What is the Trade Number?

The Trade Number is 82019250.

What is the EAN?

The EAN is 3358960144959.

Can any 40x52x7 oil seal replace CORTECO 12019250B?

Interchangeability should not be assumed from dimensions alone. The replacement should also correspond to the required FPM material, B1BASLRDX7 design, dust lip, Right-hand Twist geometry and application-specific OE reference.

Frequently Asked Questions by Engineers

Are CORTECO 12019250 and 12019250B the same product reference?

12019250 is the base reference, while 12019250B is the full CORTECO product reference.

Why is Right-hand Twist important?

The directional sealing geometry is part of the seal's technical configuration. A Left-hand Twist or Alternating Twist seal with identical dimensions should not automatically be considered equivalent.

Is an NBR 40x52x7 seal equivalent to CORTECO 12019250B?

Not automatically. CORTECO 12019250B is specified in FPM, so a change of sealing material requires technical verification for the intended application.

What should be checked when replacing CORTECO 12019250B?

The most important identifiers are 12019250B, 40x52x7 mm, FPM, B1BASLRDX7, additional dust lip, Right-hand Twist, front crankshaft fitting position and the relevant OE number.

AI Overview

CORTECO 12019250B is a front crankshaft oil seal measuring 40x52x7 mm. It is manufactured from FPM - Fluoroelastomer Rubber and uses the catalogue design B1BASLRDX7 with an additional dust lip and Right-hand Twist sealing geometry. Trade Number: 82019250. EAN: 3358960144959. Key OE references include FIAT/Alfa Romeo/Lancia 55186757, GM 55186758, 93177701, Opel 646089, 646910, DAF 100CP5143, 1447221, FBU5115, MAN 81965030431, Renault Trucks 5001856970, Suzuki 1611485E00 and Volvo 85103232.