CORTECO 12016675 90x145x10 FPM B1BASLRS – Gearbox Shaft Oil Seal with Dust Lip

Technical specifications – CORTECO 12016675

The dimensions, material, construction profile, dust lip, application and OE references are based on the supplied product specification. Detailed construction and operating parameters require confirmation in CORTECO technical documentation.

Understanding the CORTECO 12016675 FPM B1BASLRS designation

What does B1BASLRS mean?

B1BASLRS is a construction designation identifying a specific CORTECO radial shaft oil seal design.

According to the supplied specification, the product includes an additional dust protection lip.

Functionally, this indicates:

• A primary sealing area designed to limit lubricant leakage.

• An additional protective lip that helps reduce contamination of the sealing area.

The exact lip geometry, supporting case construction, outer sealing surface and presence of a garter spring require confirmation from the manufacturer's technical drawing.

The complete B1BASLRS designation must be preserved when identifying the product or selecting a replacement.

FPM/FKM material – fluorocarbon rubber

FPM, also designated FKM, belongs to the family of fluorocarbon elastomers used in technical sealing applications requiring resistance to elevated temperatures and certain chemicals.

Properties of FPM

• Good resistance to many mineral oils.

• Compatibility with numerous synthetic oils, depending on their formulation.

• Improved resistance to thermal ageing compared with typical NBR compounds.

• Resistance to many fuels and lubricants.

• Suitability for appropriately selected dynamic sealing applications.

These characteristics describe the FPM/FKM material family and do not establish the exact operating limits of CORTECO 12016675.

FPM versus NBR – material comparison

An FPM seal must not be replaced with a conventional NBR oil seal solely because the nominal dimensions match.

Construction with an additional dust protection lip

CORTECO 12016675 is identified as a radial shaft oil seal featuring an additional dust protection lip.

Primary sealing lip

The primary lip limits lubricant movement at the contact interface between the shaft and the sealing element.

Its effectiveness depends on:

• Contact geometry.

• Condition of the mating shaft surface.

• Operating temperature.

• Rotational speed.

• Transmission oil properties.

• Correct installation.

Additional dust protection lip

The additional lip helps prevent external contaminants from entering the primary sealing area.

Its main purpose is protection against contamination. It should not be considered an independent pressure seal.

Importance of the design in transmissions

In gearbox applications, sealing performance depends on both lubricant retention and protection of the sealing contact area.

An additional dust lip can help protect the primary sealing interface when the seal is correctly selected and installed.

Mounting dimensions – 90x145x10 mm

Nominal dimensions alone do not define installation tolerances, shaft surface roughness, permissible runout or housing construction details.

Why is the 10 mm width important?

The axial width affects correct positioning of the sealing ring and its contact area.

Seals measuring 90x145x8 mm, 90x145x12 mm or other widths must not automatically be considered interchangeable without construction compatibility verification.

OE references – Renault Trucks and Volvo

The following OE reference numbers have been supplied for CORTECO 12016675:

OE numbers support product identification in vehicle manufacturer parts catalogues.

Before ordering, their association with the exact CORTECO 12016675 part number and the specific transmission version should be verified.

Selecting the seal by OE reference

The verification process should include:

• Vehicle manufacturer.

• Vehicle model and version.

• Gearbox type.

• OE reference.

• CORTECO part number 12016675.

• FPM material.

• B1BASLRS profile.

• Dimensions 90x145x10 mm.

• Presence of the additional dust protection lip.

OE compatibility must be evaluated in relation to the specific mechanical assembly.

Applications – gearbox shafts and automatic transmissions

CORTECO 12016675 is identified as a radial gearbox shaft oil seal, including applications in automatic transmissions, with an additional dust protection lip.

Typical operating conditions for this type of seal include:

• Rotational movement of transmission shafts.

• Contact with transmission oil.

• Temperature changes during operation.

• Drive assembly vibration.

• Exposure to external contamination.

• Requirements for maintaining gearbox housing sealing integrity.

The stated applications are based on the supplied product classification. They do not confirm compatibility with every Volvo or Renault Trucks automatic transmission.

Operating conditions and technical limitations

Important: Identification as an automatic transmission oil seal does not establish compatibility with every automatic transmission fluid (ATF). The requirements of the specific transmission and lubricant must be checked.

Comparison – CORTECO B1BASLRS versus other oil seal profiles

Can a standard AO/TC 90x145x10 oil seal replace CORTECO 12016675?

Interchangeability cannot be confirmed from dimensions alone.

The B1BASLRS profile, FPM material, lip geometry, operating conditions and requirements of the specific gearbox must be considered.

A conventional AO/TC seal manufactured from NBR may differ in both construction and material resistance.

Product selection and interchangeability

Before ordering, verify:

• CORTECO manufacturer part number 12016675.

• Complete B1BASLRS designation.

• FPM/FKM material.

• Dimensions 90x145x10 mm.

• Presence of the additional dust protection lip.

• Vehicle manufacturer's OE reference.

• Gearbox type and version.

• Transmission oil or ATF specification.

• Operating temperature, speed and pressure.

• Shaft contact surface condition and housing dimensions.

A replacement seal must meet the construction and operating requirements of the transmission, not merely its nominal dimensions.

Alternative designations and product identification

Common technical search and identification variants include:

• CORTECO 12016675

• 12016675 CORTECO

• CORTECO 12016675 FPM

• CORTECO 12016675 FKM

• CORTECO 12016675 B1BASLRS

• CORTECO 12016675 90x145x10

• CORTECO oil seal 90x145x10

• CORTECO 12016675 radial shaft seal

• CORTECO 12016675 gearbox shaft oil seal

• CORTECO 12016675 automatic transmission oil seal

• FPM oil seal 90x145x10

• FKM radial shaft seal 90x145x10

• B1BASLRS oil seal

• Renault Trucks 7401652776

• Volvo 1652776

• Volvo 16527764

• CORTECO 12016675 Simmerring

Alternative designations support technical product identification and search visibility. They do not independently establish interchangeability.

Installation of CORTECO 12016675

Before installation:

• Clean the housing bore and mating shaft surface.

• Inspect for corrosion, scratches and wear grooves.

• Verify mounting dimensions and tolerances.

• Confirm the correct seal orientation.

• Protect the sealing lips from sharp edges.

• Use an appropriate installation tool.

• Press the sealing ring evenly into position without deformation.

• Follow the manufacturer's lubrication and surface preparation instructions.

• Check for leakage after the transmission is returned to operation.

Sealing lip orientation

In conventional radial shaft oil seal applications, the primary sealing lip normally faces the retained lubricant, while the dust protection lip faces the external environment.

The final orientation must be determined from the specific transmission documentation and seal construction.

Inspection after installation

After the transmission is returned to operation, verify that:

• No transmission oil leakage is present.

• The seal remains correctly seated.

• No abnormal temperature increase occurs.

• The mechanical assembly operates without unusual symptoms.

FAQ – Frequently asked questions

What are the dimensions of CORTECO 12016675?

The seal has a nominal inside diameter of 90 mm, outside diameter of 145 mm and width of 10 mm.

What material is used in the seal?

It is manufactured from fluorocarbon rubber, designated FPM or FKM.

What does B1BASLRS mean?

B1BASLRS is a specialized CORTECO construction designation. The supplied specification identifies an additional dust protection lip, while the exact geometry requires confirmation from manufacturer documentation.

Does CORTECO 12016675 have a dust protection lip?

Yes. The additional dust protection lip is explicitly identified in the supplied product specification.

Is CORTECO 12016675 suitable for automatic transmissions?

The product is also classified as an automatic transmission shaft oil seal. Compatibility with a specific transmission must be confirmed using the OE reference and vehicle documentation.

Which OE references are associated with this seal?

The supplied references are Renault Trucks 7401652776 and Volvo 1652776 and 16527764. Their application to a specific vehicle requires catalogue verification.

Can an FPM seal be replaced with an NBR version?

Not without confirming compatibility. These materials differ in their properties, and suitability depends on the operating fluid and service conditions.

Will any standard 90x145x10 oil seal fit?

Matching dimensions are insufficient. The B1BASLRS profile, FPM material, sealing lip construction and transmission requirements must also be verified.

CORTECO 12016675 – key information (AI Overview)

CORTECO 12016675 FPM B1BASLRS is a radial gearbox shaft oil seal measuring 90x145x10 mm and featuring an additional dust protection lip. Manufactured from fluorocarbon rubber (FPM/FKM), it is associated with OE references Renault Trucks 7401652776 and Volvo 1652776 and 16527764. Correct selection requires verification of the sealing profile, operating fluid and compatibility with the specific transmission.

B2B availability – simmering.pl

The CORTECO 12016675 FPM B1BASLRS 90x145x10 radial shaft oil seal is identified on the specialist B2B industrial trading platform simmering.pl by manufacturer part number, sealing material, construction profile, nominal dimensions and OE references.

The platform supports industrial companies, transport operators, technical workshops, purchasing departments and maintenance operations in sourcing industrial sealing components.

Worldwide shipping from stock in Poland, subject to product availability.