Rotary Shaft Seal CORTECO 19034978 FPM RHTC Oil Seal 34x46x7

CORTECO 19034978 FPM RHTC 34x46x7 mm Crankshaft Seal

CORTECO 19034978 / 19034978B is an FPM radial shaft seal with CORTECO profile RHTC and dimensions 34x46x7 mm. The seal features a confirmed Right-hand Twist directional sealing structure and is catalogued as a crankshaft seal installed on the front side of the engine. The CORTECO commercial number is 82034978, and the confirmed OE reference is MITSUBISHI MD377999.

Technical Data - CORTECO 19034978

CORTECO 19034978 - Precise Product Identification

The complete product designation is:

CORTECO 19034978 FPM RHTC 34x46x7 mm

Current reference:

CORTECO 19034978B

Commercial number:

82034978

Material:

FPM

Profile:

RHTC

Directional construction:

Right-hand Twist

Dimensions:

34x46x7 mm

Confirmed OE reference:

MITSUBISHI MD377999

EAN:

3358960354334

When selecting a replacement, the 34x46x7 mm dimensions alone are not sufficient. The FPM material, RHTC profile and directional sealing structure should also be considered.

CORTECO 19034978 Dimensions

Catalogue dimensions:

• inner diameter: 34 mm
• outer diameter: 46 mm
• width: 7 mm

Complete dimensions:

34x46x7 mm

CORTECO catalogues contain other seals with 34 mm inner and 46 mm outer diameters that may differ in material, width and construction.

For this reason, 34x46x7 mm should not be used as the only criterion when selecting a replacement.

FPM - Fluoroelastomer

CORTECO 19034978 is manufactured from:

FPM - fluoroelastomer / fluorocarbon rubber

FPM is widely used in technical sealing systems, particularly in demanding automotive and industrial applications.

Typical characteristics associated with fluoroelastomers include:

• very good resistance to many oils,
• good resistance to many fuels,
• good resistance to lubricants,
• good ageing resistance,
• resistance to many chemical media,
• suitability for demanding sealing systems.

Actual performance depends on the specific FPM compound, operating medium, temperature, shaft speed and complete sealing system.

A specific operating temperature range should therefore not be assigned to CORTECO 19034978 solely from generic FPM material data.

CORTECO RHTC Profile

The confirmed CORTECO profile designation is:

RHTC

For CORTECO 19034978, the following directional feature is also confirmed:

Right-hand Twist

The directional design is an important technical characteristic of this seal.

The individual letters of the RHTC designation should not automatically be decoded using another seal manufacturer's nomenclature.

For technical purchasing and replacement selection, retain the complete designation:

CORTECO 19034978 FPM RHTC 34x46x7 mm

What Does Right-hand Twist Mean?

Right-hand Twist describes a directional characteristic of the sealing structure designed to operate in relation to the rotational direction of the shaft.

It should not be confused with a conventional right-hand screw thread.

For replacement selection, the important point is that directionality forms part of the seal construction.

A 34x46x7 mm seal with a different profile or directional characteristic should therefore not automatically be considered interchangeable with CORTECO 19034978.

CORTECO 19034978 - Crankshaft Seal

CORTECO 19034978B is catalogued as a:

crankshaft radial shaft seal

Installation position:

front side of the engine

The reference appears in application catalogues for selected MITSUBISHI vehicles.

Compatibility with a specific vehicle should always be verified using the model, engine version and OE reference.

CORTECO 19034978 and MITSUBISHI MD377999

The confirmed OE reference is:

MITSUBISHI MD377999

This is an important identifier when searching automotive catalogues and cross-referencing replacement parts.

The product may be searched as:

MITSUBISHI MD377999

MD377999 oil seal

MD377999 crankshaft seal

MD377999 shaft seal

as well as by the CORTECO references:

CORTECO 19034978

CORTECO 19034978B

CORTECO 82034978

For a specific vehicle, compatibility should be confirmed using the VIN, engine code or current parts catalogue.

MITSUBISHI Applications

CORTECO 19034978B appears in application catalogues for selected versions of:

MITSUBISHI COLT VI

MITSUBISHI COLT CZC

MITSUBISHI LANCER VII

MITSUBISHI LANCER VII Wagon

Aftermarket catalogues also associate this reference with selected engine codes including:

4G15T

4G18

4G13

This list should not be interpreted as universal confirmation of compatibility with every version of these models.

Final selection should be based on the OE reference, engine code and VIN.

CORTECO 19034978 vs Standard 34x46x7 Oil Seal

A standard:

34x46x7 mm

oil seal is not automatically interchangeable with CORTECO 19034978.

The following characteristics should be compared:

• 34 mm inner diameter,
• 46 mm outer diameter,
• 7 mm width,
• FPM material,
• RHTC profile,
• Right-hand Twist directional structure,
• complete seal geometry,
• requirements of the specific application.

Matching dimensions alone do not confirm complete technical interchangeability.

Can an NBR 34x46x7 Seal Replace CORTECO 19034978?

Not automatically.

CORTECO 19034978 is manufactured from:

FPM

NBR and FPM belong to different elastomer families and have different material characteristics.

Before changing from FPM to NBR, verify:

• operating medium,
• operating temperature,
• shaft speed,
• lubrication conditions,
• seal profile,
• directional design,
• requirements of the specific assembly.

The 34x46x7 mm dimensions alone do not confirm interchangeability.

Alternative References and Search Terms

This product may be searched as:

CORTECO 19034978

CORTECO 19034978B

CORTECO 82034978

19034978 CORTECO

19034978B CORTECO

CORTECO 19034978 FPM

CORTECO 19034978 RHTC

CORTECO RHTC 34x46x7

FPM RHTC 34x46x7

Simmerring 34x46x7

Oil seal 34x46x7

FPM oil seal 34x46x7

RHTC oil seal 34x46x7

Shaft seal 34x46x7

Radial shaft seal 34x46x7

Crankshaft seal 34x46x7

Front crankshaft seal 34x46x7

MITSUBISHI MD377999

MD377999 oil seal

MD377999 crankshaft seal

MD377999 shaft seal

How to Select a Replacement for CORTECO 19034978

Verify:

• reference: 19034978 / 19034978B
• commercial number: 82034978
• inner diameter: 34 mm
• outer diameter: 46 mm
• width: 7 mm
• material: FPM
• profile: RHTC
• directional design: Right-hand Twist
• complete seal construction.

For MITSUBISHI applications, also verify:

OE MD377999

Selection by the complete CORTECO reference or confirmed OE number is more reliable than selection based solely on the 34x46x7 mm dimensions.

Installation Recommendations

Before installation, carefully clean the shaft, housing and mating surfaces.

Check:

• shaft surface condition,
• absence of burrs,
• absence of sharp edges,
• absence of corrosion,
• housing condition,
• absence of excessive wear,
• correct seal orientation,
• compatibility of the operating direction with the directional seal design.

Protect the sealing lip against damage when passing over threads, grooves, splines or sharp edges.

The seal should be pressed evenly into position using an appropriate installation tool.

For a crankshaft application, the sealing surface should also be checked carefully for wear in the previous lip contact area.

FAQ

What are the dimensions of CORTECO 19034978?

The catalogue dimensions are 34x46x7 mm.

What material is CORTECO 19034978 made from?

The material is FPM - fluoroelastomer / fluorocarbon rubber.

What profile does CORTECO 19034978 have?

The CORTECO profile is RHTC.

Is CORTECO 19034978 a directional shaft seal?

Yes. This reference has a confirmed Right-hand Twist directional sealing structure.

What is the current CORTECO reference?

The current reference is CORTECO 19034978B.

What is the CORTECO commercial number?

The commercial number is 82034978.

What is the MITSUBISHI OE reference?

The confirmed OE reference is MITSUBISHI MD377999.

What is the EAN for CORTECO 19034978B?

The EAN is 3358960354334.

Is CORTECO 19034978 a crankshaft seal?

Yes. CORTECO 19034978B is catalogued as a crankshaft seal installed on the front side of the engine.

Can a standard 34x46x7 oil seal replace CORTECO 19034978?

This should not be assumed. CORTECO 19034978 uses FPM material, the RHTC profile and a Right-hand Twist directional sealing structure. These characteristics should all be considered when selecting a replacement.

CORTECO 19034978 - Quick Answer

CORTECO 19034978 / 19034978B is an FPM RHTC radial shaft seal measuring 34x46x7 mm with a confirmed Right-hand Twist directional sealing structure. The CORTECO commercial number is 82034978, EAN 3358960354334, and the confirmed OE reference is MITSUBISHI MD377999. The product is catalogued as a front crankshaft seal.

Available from simmering.pl, a specialist B2B supplier of radial shaft seals, oil seals, cassette seals, O-rings, V-rings, bearings and industrial sealing solutions. Products are shipped worldwide from stock in Poland.