CORTECO 19034788 NBR TCV 12x25x7 mm Radial Shaft Seal

CORTECO 19034788 NBR TCV 12x25x7 mm Radial Shaft Seal - FIAT-HITACHI X4086281

CORTECO 19034788 is an NBR radial shaft seal with CORTECO profile TCV and dimensions 12x25x7 mm. The product is also listed under the current reference CORTECO 19034788B and commercial number 82034788. A confirmed OE reference is FIAT-HITACHI X4086281.

Technical Data - CORTECO 19034788

CORTECO 19034788 - Precise Product Identification

For radial shaft seals, dimensions alone are not sufficient for reliable product identification.

The complete specification of this product is:

CORTECO 19034788 NBR TCV 12x25x7 mm

The product may also be found in current catalogues as:

CORTECO 19034788B

and under the commercial number:

CORTECO 82034788

Confirmed original equipment reference:

FIAT-HITACHI X4086281

Combining the manufacturer reference, material, profile, dimensions and OE number provides much more precise identification than simply searching for a "12x25x7 oil seal".

What Is NBR?

CORTECO 19034788 is manufactured from NBR, or nitrile butadiene rubber, commonly known as nitrile rubber.

NBR is one of the most widely used elastomers in technical sealing applications.

It is commonly used for seals operating with many oils and greases and is therefore found in numerous mechanical and industrial applications.

However, this does not mean that every NBR seal is suitable for every operating medium.

Selection should take into account:

• operating medium,
• operating temperature,
• shaft speed,
• lubrication conditions,
• seal arrangement,
• machine manufacturer requirements.

A universal temperature range should not be assigned to the exact CORTECO 19034788 reference solely on the basis of general NBR material properties.

CORTECO TCV Profile

The confirmed CORTECO profile designation for reference 19034788 is:

TCV

The profile is an important part of the technical identification of a radial shaft seal.

It should not be assumed that every 12x25x7 mm Simmerring or oil seal has the same construction as CORTECO 19034788.

Profile terminology may differ between seal manufacturers. For this reason, the individual letters of TCV should not be interpreted using another manufacturer's nomenclature unless an authoritative CORTECO profile definition confirms the equivalence.

When selecting a replacement, TCV should be treated as part of the complete specification.

CORTECO 19034788 Dimensions

Confirmed dimensions are:

• inner diameter: 12 mm
• outer diameter: 25 mm
• width: 7 mm

Complete dimensions:

12x25x7 mm

The nominal 12 mm inner diameter corresponds to the shaft size, while the 25 mm outer diameter corresponds to the nominal housing bore.

CORTECO 19034788 for FIAT-HITACHI

A confirmed OE reference associated with CORTECO 19034788B is:

FIAT-HITACHI X4086281

The X4086281 number is an important identification reference when searching for a replacement seal for a FIAT-HITACHI machine or assembly.

However, the OE number should not be interpreted as universal compatibility with every FIAT-HITACHI machine.

For a specific machine, verify:

• OE number X4086281,
• machine model,
• assembly version,
• serial number where relevant,
• manufacturer's parts documentation.

CORTECO 19034788 vs 19034788B

Two reference formats may be encountered:

CORTECO 19034788

and

CORTECO 19034788B

Current aftermarket catalogues frequently use 19034788B.

The associated commercial number is:

82034788

When searching for this product, it is therefore useful to use all three references:

19034788

19034788B

82034788

while confirming the core technical specification:

NBR TCV 12x25x7 mm

Alternative References and Search Terms

CORTECO 19034788 may be searched using:

CORTECO 19034788

19034788 CORTECO

CORTECO 19034788B

19034788B CORTECO

CORTECO 82034788

82034788 CORTECO

CORTECO TCV 12x25x7

CORTECO 19034788 NBR

CORTECO 19034788 TCV

CORTECO 19034788 12x25x7

19034788 NBR TCV

Simmerring 12x25x7 NBR

Oil seal 12x25x7 NBR

Radial shaft seal 12x25x7 NBR

FIAT-HITACHI X4086281

X4086281 oil seal

X4086281 shaft seal

X4086281 Simmerring

Searching by the CORTECO reference or OE number X4086281 provides more precise identification than searching by dimensions alone.

Is Every 12x25x7 Oil Seal Interchangeable?

No.

Identical nominal dimensions do not automatically mean identical construction.

Different 12x25x7 mm radial shaft seals may differ in:

• elastomer material,
• construction profile,
• sealing lip geometry,
• outer surface design,
• additional sealing features,
• intended application,
• operating characteristics.

For this reason, a replacement for CORTECO 19034788 should be compared against the complete specification:

12x25x7 mm + NBR + TCV

For an original equipment application, also verify:

FIAT-HITACHI X4086281

How to Select a Replacement for CORTECO 19034788

When comparing an alternative radial shaft seal, verify at least:

• 12 mm shaft diameter,
• 25 mm housing bore,
• 7 mm width,
• NBR material,
• TCV profile,
• operating medium,
• operating temperature,
• shaft speed,
• lubrication conditions,
• machine manufacturer requirements.

If the seal is being selected for FIAT-HITACHI equipment, the OE reference:

X4086281

should also be verified.

Can an FKM 12x25x7 Seal Replace CORTECO 19034788 NBR?

Interchangeability cannot be confirmed from dimensions alone.

FKM and NBR are different elastomer groups with different material properties.

Even if an FKM radial shaft seal has identical 12x25x7 mm dimensions, its construction, profile and compatibility with the operating conditions must also be checked.

Changing the elastomer should be treated as a technical engineering decision rather than a simple dimensional substitution.

Why Is the OE Number Important?

Dimensions such as 12x25x7 mm can occur in multiple radial shaft seal designs.

The OE number FIAT-HITACHI X4086281 provides an additional identification point that connects the CORTECO seal with the original equipment reference.

For maintenance and purchasing departments, searching by both numbers can therefore reduce the risk of selecting a dimensionally similar but technically different seal:

CORTECO 19034788 / 19034788B

FIAT-HITACHI X4086281

Installation Recommendations

Before installation, inspect the shaft surface and housing bore.

The sealing surface should be free from:

• corrosion,
• burrs,
• sharp edges,
• excessive wear,
• contamination.

Protect the sealing lip from threads, splines, grooves and other sharp shaft features during installation.

The radial shaft seal should be pressed evenly into the housing using a suitable installation tool.

The installation orientation should correspond to the original seal arrangement and machine manufacturer's requirements.

FAQ

What are the dimensions of CORTECO 19034788?

CORTECO 19034788 measures 12x25x7 mm: 12 mm inner diameter, 25 mm outer diameter and 7 mm width.

What material is CORTECO 19034788 made from?

The seal is manufactured from NBR nitrile rubber.

What profile does CORTECO 19034788 have?

The confirmed CORTECO profile designation is TCV.

What is the FIAT-HITACHI OE number?

The confirmed OE reference is:

FIAT-HITACHI X4086281

Is CORTECO 19034788 also listed as 19034788B?

Yes. Current aftermarket catalogues frequently list the product as CORTECO 19034788B.

What is the CORTECO commercial number?

The associated commercial number is:

82034788

Is every 12x25x7 oil seal a replacement for CORTECO 19034788?

No. Material and construction must also be compared. The confirmed specification for this product is NBR TCV 12x25x7 mm.

Is CORTECO 19034788 a replacement for FIAT-HITACHI X4086281?

FIAT-HITACHI X4086281 is a confirmed OE reference associated with CORTECO 19034788B. Compatibility with a specific machine should additionally be checked against the machine model and original parts documentation.

CORTECO 19034788 - Quick Answer

CORTECO 19034788 / 19034788B is an NBR TCV radial shaft seal measuring 12x25x7 mm. It has a 12 mm inner diameter, 25 mm outer diameter and 7 mm width. The associated CORTECO commercial number is 82034788, while the confirmed OE reference is FIAT-HITACHI X4086281. Replacement selection should consider the NBR material and TCV profile, not dimensions alone.

Available from simmering.pl, a specialist supplier of radial shaft seals, O-rings, bearings and industrial sealing solutions. Products are shipped worldwide from stock in Poland.