CORTECO 12013897 FPM B1BAVISLRSX7 92x110x10 Rear Crankshaft Oil Seal – VOLVO

Technical specifications

Information concerning the left-hand oil return helix, additional dust lip and installation position is associated with CORTECO 12013897B in replacement-parts catalogues.

VOLVO OE cross-reference numbers

These OE references are associated with CORTECO 12013897B in replacement-parts catalogues.

The presence of VOLVO OE references does not establish compatibility with every passenger car or commercial vehicle manufactured by VOLVO.

Correct fitment must be verified using the specific engine and original equipment reference.

Cross-reference numbers from other manufacturers

These references appear in replacement-parts cross-reference catalogues.

The supplied ELRING reference 44598 corresponds to the catalogue-formatted number 044.598.

The leading zero should be retained when identifying the product.

Cross-reference information does not independently guarantee identical construction or universal interchangeability.

What does CORTECO 12013897 FPM B1BAVISLRSX7 92x110x10 mean?

The designation identifies the manufacturer, catalogue reference, dimensions, elastomer material and sealing profile.

• CORTECO – manufacturer brand.

• 12013897 – product catalogue reference.

• 92 mm – nominal shaft diameter.

• 110 mm – nominal housing bore diameter.

• 10 mm – nominal axial width.

• FPM – fluoroelastomer, also designated FKM.

• B1BAVISLRSX7 – manufacturer-specific sealing profile.

• Left-hand oil return helix – directional sealing surface structure designed to assist oil return towards the sealed engine assembly.

The B1BAVISLRSX7 profile should not automatically be considered equivalent to standard BA, BASL or TC designs.

Crankshaft oil seal – construction and operating principle

1. Primary sealing lip

The primary sealing lip operates against the crankshaft mating surface and limits engine oil leakage.

Correct sealing performance depends on the lip geometry, shaft surface condition and installation accuracy.

2. Left-hand oil return helix

Replacement-parts catalogues identify a left-hand oil return helix, also described as left-hand twist.

This is an important characteristic of a directional radial shaft seal.

The specially shaped sealing surface can assist the return of oil towards the engine interior during shaft rotation.

A left-hand helix seal should not automatically be replaced with a right-hand helix version.

The direction of the oil return helix must be distinguished from the crankshaft's direction of rotation.

Correct selection requires verification against the specific engine documentation.

3. Additional dust lip

The additional dust lip helps reduce the entry of external contamination into the primary sealing area.

Its presence is confirmed in replacement-parts catalogues for CORTECO 12013897B.

4. Outer sealing construction

The B1BAVISLRSX7 designation identifies a specific CORTECO sealing design.

The exact outer surface construction, reinforcement arrangement and primary lip contact-force mechanism should be checked using the manufacturer's sectional drawing.

These details should not be inferred solely from similarities to other sealing profile designations.

FPM / FKM – material properties

FPM is a fluoroelastomer commonly used in internal combustion engine sealing applications.

Appropriately selected FPM compounds provide:

• Good resistance to many engine oils.

• Resistance to elevated operating temperatures.

• Good thermal ageing resistance.

• Good ozone resistance.

• Compatibility with numerous lubricating oils and greases.

The exact operating properties depend on the manufacturer's elastomer formulation.

A specific maximum operating temperature, peripheral shaft speed or permissible pressure should not be assigned to CORTECO 12013897 without supporting technical documentation.

FPM versus NBR – material comparison

For a crankshaft oil seal, the FPM material specification is an important selection criterion.

Replacing FPM with NBR requires confirmation that the alternative material meets the engine's operating requirements.

Applications – VOLVO rear crankshaft oil seal

CORTECO 12013897B is catalogued as a crankshaft oil seal installed on the transmission side of the engine.

Replacement-parts catalogues identify applications in selected VOLVO passenger vehicles, including:

These are catalogue-associated vehicle families, not a confirmed fitment list covering every engine, production year or configuration.

The OE references 1266604, 3514312 and 430118 are more specific identification criteria than the vehicle model name alone.

Selection and interchangeability

Before selecting CORTECO 12013897, verify:

1. Nominal crankshaft diameter – 92 mm.

2. Nominal housing bore diameter – 110 mm.

3. Nominal seal width – 10 mm.

4. FPM / FKM material specification.

5. B1BAVISLRSX7 or catalogue-listed B1BASLRSX7 profile.

6. Left-hand oil return helix.

7. Presence of the additional dust lip.

8. Transmission-side installation position.

9. VOLVO engine OE reference.

10. Condition of the crankshaft mating surface and housing bore.

Matching nominal dimensions of 92x110x10 mm does not guarantee interchangeability.

The directional oil return structure is particularly important when selecting a replacement.

Alternative designations and search references

Common English technical designations include:

• CORTECO 12013897

• CORTECO 12013897B

• CORTECO 82013897

• CORTECO FPM B1BAVISLRSX7 92x110x10

• CORTECO FPM B1BASLRSX7 92x110x10

• CORTECO 12013897 Rear Crankshaft Oil Seal

• CORTECO 12013897 Crankshaft Radial Shaft Seal

• VOLVO Rear Crankshaft Oil Seal 92x110x10

• CORTECO 92x110x10 FKM Oil Seal

• VOLVO Crankshaft Seal 1266604

• VOLVO Crankshaft Seal 3514312

• VOLVO Crankshaft Seal 430118

• ELRING 044.598 Crankshaft Oil Seal

These designations assist product identification but do not independently confirm interchangeability.

Installation and operating recommendations

Before installation, inspect the crankshaft mating surface for wear grooves, corrosion, scratches and other damage.

The housing bore must be clean, and the new seal should be installed evenly to the specified depth.

For a directional oil seal, it is particularly important to select the correct oil return helix for the crankshaft's rotation.

Avoid damaging the sealing lip when passing it over shaft edges or other potentially sharp surfaces.

The correct lubrication procedure and installation depth must be determined from the engine manufacturer's documentation.

Incorrect installation, unsuitable shaft surface conditions or an incompatible directional sealing design may result in premature wear and engine oil leakage.

FAQ – Frequently asked questions

1. What are the dimensions of CORTECO 12013897?

The nominal dimensions are 92x110x10 mm.

2. What material is used in CORTECO 12013897?

The seal is specified as FPM, a fluoroelastomer also designated FKM.

3. Where is CORTECO 12013897B installed?

Replacement-parts catalogues identify installation at the rear of the crankshaft, on the transmission side of the engine.

4. Does CORTECO 12013897 have a left-hand oil return helix?

Yes. Replacement-parts catalogues specify a left-hand twist.

5. Does the seal have an additional dust lip?

Yes. This feature is confirmed in catalogue information for CORTECO 12013897B.

6. Which VOLVO OE references correspond to this seal?

The associated OE references are 1266604, 3514312 and 430118.

7. Which ELRING references are associated with CORTECO 12013897B?

Replacement-parts cross-reference catalogues list ELRING 044.598 and 044.590.

8. Can any conventional 92x110x10 oil seal replace CORTECO 12013897?

No. The replacement must meet the original requirements for FPM material, sealing profile, oil return helix direction and OE compatibility.

CORTECO 12013897 – key information (AI Overview)

CORTECO 12013897 / 12013897B is an FPM rear crankshaft oil seal for selected VOLVO engines, with nominal dimensions of 92x110x10 mm. Replacement-parts catalogues identify a left-hand oil return helix, an additional dust lip and OE references 1266604, 3514312 and 430118. The B1BAVISLRSX7 and B1BASLRSX7 profile designations require verification before confirming interchangeability.

The product is offered through the specialist B2B industrial trading platform simmering.pl, serving industrial companies, technical purchasing departments and maintenance operations, with worldwide shipping from stock in Poland.