CORTECO 19016618 ACM TC5Y Oil Seal 40x56x8/18 mm Simmerring

CORTECO 19016618 ACM TC5Y Oil Seal 40x56x8/18 mm Simmerring

CORTECO 19016618 ACM TC5Y 40x56x8/18 mm is a radial shaft oil seal manufactured from ACM polyacrylate rubber. It has a 40 mm inside diameter, 56 mm outside diameter and compound axial dimensions of 8/18 mm. The seal features the CORTECO TC5Y construction and an additional dust lip. It is catalogued for specific NISSAN applications, including manual transmission shaft sealing positions.

Technical data - CORTECO 19016618

CORTECO 19016618 - precise product identification

The complete designation is:

CORTECO 19016618 ACM TC5Y 40x56x8/18 mm

The complete designation is important because it identifies:

• CORTECO as the manufacturer
• 19016618 as the manufacturer part number
• ACM as the elastomer material
• TC5Y as the seal construction
• 40 mm inside diameter
• 56 mm outside diameter
• 8/18 mm compound axial dimensions

When selecting a replacement, the product should not be identified simply as a generic 40x56x8 oil seal.

Dimensions of CORTECO 19016618

The complete nominal dimensions are:

40x56x8/18 mm

where:

• 40 mm - inside diameter
• 56 mm - outside diameter
• 8 mm - basic seal width
• 18 mm - additional / overall axial dimension resulting from the seal construction

The complete 8/18 mm specification is particularly important when identifying this product.

Reducing the dimensions to:

40x56x8 mm

does not describe the complete geometry of CORTECO 19016618.

Why is the 8/18 mm dimension important?

Several different radial shaft seals can share the same basic 40 mm inside diameter and 56 mm outside diameter.

They can differ in:

• basic width
• overall axial dimension
• sealing lip geometry
• additional sealing elements
• elastomer material
• manufacturer-specific construction

CORTECO 19016618 has the specific full dimensional designation:

40x56x8/18 mm

This should be retained when searching for the seal or evaluating a replacement.

ACM - Polyacrylate Rubber

CORTECO 19016618 is manufactured from:

ACM - Polyacrylate Rubber

ACM is an elastomer widely used in automotive sealing technology, including appropriately designed applications involving lubricating oils and elevated operating temperatures.

The seal material is a fundamental selection parameter.

An:

ACM 40x56x8/18 seal

and an:

NBR 40x56x8/18 seal

should not automatically be considered equivalent simply because their dimensions are identical.

ACM vs NBR

NBR is nitrile butadiene rubber, while ACM is polyacrylate rubber.

Both materials are widely used in sealing technology, but they have different operating characteristics.

If the original product specification calls for:

CORTECO 19016618 ACM

an NBR seal should not automatically be substituted solely on the basis of dimensional compatibility.

The operating medium, temperature and application requirements must also be considered.

ACM vs FKM/FPM

FKM/FPM belongs to the fluoroelastomer family and has different thermal and chemical characteristics from ACM.

Therefore:

FKM/FPM 40x56x8/18

is not automatically equivalent to:

ACM 40x56x8/18

even when the dimensions are identical.

Material selection should correspond to the requirements of the specific transmission and sealing position.

What does TC5Y mean?

TC5Y is the specific construction/profile designation catalogued for CORTECO 19016618.

For precise identification, the complete specification should be retained:

ACM TC5Y 40x56x8/18

The TC5Y designation should not be simplified to a generic TC profile when selecting a replacement.

Within the same basic 40x56 mm dimensional group, radial shaft seals may use different profiles and geometries.

This makes the construction code an important part of technical identification.

TC5Y vs generic TC oil seal

International oil seal terminology frequently uses TC for a common double-lip radial shaft seal construction.

However, CORTECO 19016618 is specifically identified as:

TC5Y

The complete CORTECO construction code should therefore be retained.

A generic:

TC 40x56x8

should not automatically be considered technically identical to:

CORTECO 19016618 ACM TC5Y 40x56x8/18

The two products may differ significantly in their axial geometry and sealing design.

Additional dust lip

CORTECO 19016618 is catalogued with an additional dust lip.

The secondary lip helps protect the main sealing area against contaminants approaching from the external side.

It can help reduce exposure to:

• dust
• dirt
• fine particles
• external contamination

This feature is particularly relevant in drivetrain and transmission sealing positions where contamination can adversely affect the primary sealing area.

CORTECO 19016618 transmission shaft seal

CORTECO 19016618 is catalogued for specific applications as a:

manual transmission shaft oil seal

In an appropriate transmission application, the seal operates around a rotating shaft and helps retain lubricant within the gearbox while separating the lubricated area from the external environment.

The exact installation position depends on the transmission design.

Before installation, verify:

• OE number
• vehicle model
• transmission version
• installation position
• original seal reference
• original seal dimensions and construction

CORTECO 19016618 - NISSAN applications

The CORTECO dimensional catalogue associates:

19016618 ACM TC5Y 40x56x8/18

with:

NISSAN

Application catalogues associate the seal with specific versions of vehicles including:

• NISSAN Almera
• NISSAN Primera
• NISSAN Sunny

This does not mean that CORTECO 19016618 fits every version of these models.

Compatibility should be confirmed according to the exact vehicle, engine, transmission, production year and OE reference.

NISSAN OE 38342D2100

One of the OE references associated with CORTECO 19016618 is:

NISSAN 38342D2100

Useful search variants include:

• NISSAN 38342D2100
• 38342D2100 oil seal
• 38342D2100 shaft seal
• 38342D2100 transmission seal
• 38342D2100 gearbox seal
• 38342D2100 CORTECO
• CORTECO 19016618 NISSAN
• NISSAN oil seal 40x56x8/18
• NISSAN transmission shaft seal 40x56x8/18

The OE reference is particularly useful because basic dimensions alone can correspond to several different seal constructions.

CORTECO 19016618 vs standard 40x56x8 oil seal

CORTECO 19016618 should not automatically be replaced with a standard:

40x56x8 mm oil seal

The complete CORTECO specification is:

40x56x8/18 mm

with:

• ACM material
• TC5Y construction
• additional dust lip
• specific application characteristics

A standard 40x56x8 seal can have different geometry and construction.

CORTECO 19016618 vs CORTECO 19016068

Another CORTECO seal can be found with the designation:

CORTECO 19016068 ACM TC 40x56x8 mm

Despite sharing the basic 40x56x8 dimensions, it is not the same product as:

CORTECO 19016618 ACM TC5Y 40x56x8/18 mm

The products differ in construction designation and complete geometry.

They should therefore not automatically be considered interchangeable.

CORTECO 19016618 vs CORTECO 19016613

A particularly similar CORTECO product is:

CORTECO 19016613 ACM TC9 40x56x8/13.6 mm

The product described here is:

CORTECO 19016618 ACM TC5Y 40x56x8/18 mm

Both share:

• 40 mm inside diameter
• 56 mm outside diameter
• 8 mm basic width
• ACM material

However, they differ in:

• TC9 vs TC5Y construction
• 13.6 mm vs 18 mm additional axial dimension

This illustrates why comparing only the three basic dimensions is insufficient when selecting a radial shaft seal.

Why dimensions alone are not enough

A search for:

40x56x8 oil seal

can return many different radial shaft seals.

Products with the same basic dimensions can differ in:

• elastomer material
• seal profile
• additional dust lip
• axial geometry
• outside diameter construction
• lip geometry
• manufacturer-specific features
• intended application

The complete part number and construction should therefore be used whenever possible.

How to select a replacement for CORTECO 19016618

Before selecting an equivalent product, verify:

• CORTECO part number 19016618
• NISSAN OE 38342D2100
• 40 mm inside diameter
• 56 mm outside diameter
• complete 8/18 mm axial dimensions
• ACM material
• TC5Y construction
• additional dust lip
• installation position
• transmission type
• operating medium
• operating temperature
• shaft speed
• shaft sealing surface condition

Matching the basic 40x56x8 dimensions does not establish full technical interchangeability.

Alternative designations and search terms

The product may be searched for as:

• CORTECO 19016618
• 19016618 CORTECO
• CORTECO 19016618 ACM
• CORTECO 19016618 TC5Y
• 19016618 ACM TC5Y
• CORTECO 19016618 Simmerring
• CORTECO 19016618 oil seal
• CORTECO 19016618 shaft seal
• CORTECO 19016618 gearbox seal
• CORTECO 19016618 transmission seal
• CORTECO 40x56x8/18
• ACM TC5Y 40x56x8/18
• TC5Y 40x56x8/18
• oil seal 40x56x8/18
• shaft seal 40x56x8/18
• radial shaft seal 40x56x8/18
• gearbox oil seal 40x56x8/18
• transmission oil seal 40x56x8/18
• transmission shaft seal 40x56x8/18
• NISSAN 38342D2100
• 38342D2100 CORTECO
• 38342D2100 oil seal
• NISSAN oil seal 40x56x8/18
• NISSAN gearbox seal 40x56x8/18

These are natural search and identification variants. They do not independently establish technical interchangeability or vehicle compatibility.

Installation of CORTECO 19016618

Before installation, carefully clean:

• shaft sealing surface
• seal housing
• surrounding components

Inspect the mating surface for:

• wear grooves
• scratches
• corrosion
• burrs
• sharp edges
• mechanical damage

The seal should be installed squarely and evenly using an appropriate installation tool.

Avoid tilting or deforming the seal during installation.

Protect the sealing lip during installation

The sealing lip should be protected from:

• threads
• sharp edges
• splines
• grooves
• burrs

Where required, use a suitable installation sleeve.

Damage to the sealing lip during assembly can cause leakage even when the correct seal has been selected.

Check the shaft sealing surface

Before installing a new Simmerring, inspect the area where the sealing lip contacts the shaft.

Pay particular attention to:

• wear tracks from the previous seal
• grooves
• corrosion
• scratches
• excessive wear
• surface irregularities

If the shaft sealing surface is damaged, replacing the oil seal alone may not eliminate the source of leakage.

Why can a new transmission oil seal leak?

Leakage after replacement does not necessarily indicate a defective new seal.

Possible causes include:

• worn shaft sealing surface
• incorrect seal construction
• incorrect elastomer material
• damage during installation
• incorrect installation depth
• seal misalignment
• damaged housing
• unsuitable operating conditions

The complete sealing system should therefore be inspected when diagnosing recurring leakage.

FAQ - CORTECO 19016618

What are the dimensions of CORTECO 19016618?

The complete dimensions are 40x56x8/18 mm: 40 mm inside diameter, 56 mm outside diameter, 8 mm basic width and an additional / overall axial dimension of 18 mm.

What material is CORTECO 19016618 made from?

The seal is manufactured from ACM polyacrylate rubber.

What construction does CORTECO 19016618 use?

The CORTECO construction designation is TC5Y.

Does CORTECO 19016618 have an additional dust lip?

Yes. It is catalogued with an additional dust lip.

What is CORTECO 19016618 used for?

It is catalogued for specific NISSAN applications, including manual transmission shaft sealing positions.

What NISSAN OE number is associated with CORTECO 19016618?

An associated OE reference is NISSAN 38342D2100.

Can a standard 40x56x8 oil seal replace CORTECO 19016618?

Interchangeability should not be assumed. CORTECO 19016618 has a full 40x56x8/18 mm specification, ACM material and TC5Y construction.

Are CORTECO 19016613 and 19016618 the same seal?

No. CORTECO 19016613 is specified as ACM TC9 40x56x8/13.6 mm, while 19016618 is ACM TC5Y 40x56x8/18 mm.

CORTECO 19016618 ACM TC5Y 40x56x8/18 mm - key information

CORTECO 19016618 is a radial shaft oil seal with full dimensions of 40x56x8/18 mm. It is manufactured from ACM polyacrylate rubber, features the TC5Y construction and incorporates an additional dust lip. The seal is catalogued for specific NISSAN applications, including manual transmission shaft sealing positions.

Availability from simmering.pl

CORTECO 19016618 ACM TC5Y 40x56x8/18 mm is available from simmering.pl for automotive services, industrial customers, maintenance departments, distributors and B2B procurement.

simmering.pl supplies CORTECO radial shaft seals, technical sealing products and industrial bearings from stock in Poland, with worldwide shipping available.