CORTECO 01031738 NEM RWDR-KOMBI 32x44x18.5 mm - Radial Shaft Oil Seal Simmerring

CORTECO 01031738 NEM RWDR-KOMBI 32x44x18.5 mm - Radial Shaft Oil Seal Simmerring

CORTECO 01031738 NEM RWDR-KOMBI 32x44x18.5 mm is a specialized combined radial shaft oil seal from the Simmerring family, designed for selected drivetrain and transmission applications. The product is also referenced as CORTECO 01031738B and 82031738. It features a 32 mm shaft diameter, 44 mm housing diameter, 18.5 mm height and RWDR-KOMBI construction. Confirmed cross-reference data associates this seal with ZF OE number 7852033167.

Technical data - CORTECO 01031738

What does CORTECO 01031738 NEM RWDR-KOMBI mean?

The complete product designation is:

CORTECO 01031738 NEM RWDR-KOMBI 32x44x18.5 mm

Each element helps identify this exact sealing version.

• CORTECO – manufacturer.

• 01031738 – primary product number.

• 01031738B – aftermarket catalogue reference.

• 82031738 – additional CORTECO commercial reference.

• NEM – catalogue designation used by CORTECO for this SKU.

• RWDR-KOMBI – combined radial shaft sealing construction.

• 32x44x18.5 mm – complete dimensional specification.

The seal should always be identified by its full part number and construction rather than by dimensions alone.

Dimensions of CORTECO 01031738

The verified dimensions are:

32x44x18.5 mm

where:

• d = 32 mm – inside diameter

• D = 44 mm – outside diameter

• B = 18.5 mm – height

The 18.5 mm height is particularly important.

Many standard 32x44 mm oil seals are significantly narrower, therefore a generic 32x44 mm seal should not automatically be considered equivalent.

Always use the complete designation:

32x44x18.5 mm

RWDR-KOMBI construction

CORTECO classifies this product as:

RWDR-KOMBI

RWDR refers to a radial shaft sealing ring, while KOMBI identifies a combined sealing configuration with a more specialized design than a conventional oil seal.

When selecting an equivalent, verify:

• 32 mm shaft diameter

• 44 mm housing diameter

• 18.5 mm height

• RWDR-KOMBI construction

• compatible material

• CORTECO or OE reference

Matching shaft and housing diameters alone do not establish full technical interchangeability.

HNBR material

For CORTECO 01031738B, product catalogues identify the sealing material as:

HNBR – Hydrogenated Nitrile Butadiene Rubber

HNBR is an engineering elastomer used in demanding drivetrain, transmission and industrial sealing applications.

When evaluating suitability for a specific installation, consider:

• operating medium

• operating temperature

• shaft speed

• pressure

• shaft surface condition

• assembly design

No universal operating temperature range is stated here because it is not specifically confirmed for this exact CORTECO compound.

CORTECO 01031738 vs ZF 7852033167

A confirmed cross-reference for this product is:

ZF 7852033167

This OE number provides a reliable identification point for ZF assemblies.

The confirmed relationship is:

• CORTECO 01031738

• CORTECO 01031738B

• ZF 7852033167

For vehicle or transmission applications, compatibility should always be verified against the exact ZF assembly.

Alternative designations and reference numbers

Useful search and identification variants include:

• CORTECO 01031738

• CORTECO 01031738B

• 01031738 CORTECO

• 01031738B CORTECO

• CORTECO 82031738

• CORTECO 01031738 NEM

• CORTECO 01031738 RWDR-KOMBI

• CORTECO 01031738 NEM RWDR-KOMBI

• CORTECO 01031738 HNBR

• CORTECO 01031738 32x44x18.5

• CORTECO 01031738B 32x44x18.5

• CORTECO RWDR-KOMBI 32x44x18.5

• CORTECO Simmerring 32x44x18.5

• ZF 7852033167

Confirmed reference numbers:

CORTECO

• 01031738

• 01031738B

• 82031738

ZF

- 7852033167

CORTECO 01031738 vs a standard 32x44 oil seal

CORTECO 01031738 should not automatically be replaced by a conventional 32x44 mm oil seal.

Before considering interchangeability, verify:

• 32 mm inside diameter

• 44 mm outside diameter

• 18.5 mm height

• RWDR-KOMBI construction

• HNBR material

• ZF reference

• installation position

Many CORTECO seals share the same basic shaft and housing diameters but differ significantly in height and construction.

Identical shaft and housing diameters do not guarantee full technical interchangeability.

Is 32x44x18 the same as 32x44x18.5?

Some commercial listings round the height to:

32x44x18 mm

However, CORTECO catalogue data for 01031738B specifies:

32x44x18.5 mm

For technical identification and replacement, the manufacturer's exact 18.5 mm height should be retained.

A generic 32x44x18 mm seal should not automatically be considered identical to CORTECO 01031738B.

How to select CORTECO 01031738 correctly

The safest identification method is by:

CORTECO 01031738

CORTECO 01031738B

or:

ZF 7852033167

Then verify:

• 32 mm inside diameter

• 44 mm outside diameter

• 18.5 mm height

• RWDR-KOMBI construction

• compatible material

• exact installation position

When replacing an existing seal, compare both the original part number and the complete geometry.

Selection checklist

Before ordering, verify:

• CORTECO 01031738 / 01031738B

• ZF 7852033167

• 32 mm inside diameter

• 44 mm outside diameter

• 18.5 mm height

• RWDR-KOMBI construction

• HNBR material

• installation position

• application requirements

For specialized combined seals, the catalogue number is often more reliable than dimensions alone.

Installation

Before installation:

• clean the housing thoroughly

• inspect the shaft sealing surface

• remove burrs and corrosion

• check for wear grooves

• verify housing condition

• check shaft alignment

Because RWDR-KOMBI is a specialized sealing construction, correct installation depth and orientation should be maintained.

Installation force should never be applied directly to the functional sealing lips.

Why can a shaft seal still leak after replacement?

A leaking seal is not always caused by seal wear alone.

Also inspect:

• shaft sealing surface

• wear groove

• shaft runout

• bearing condition

• housing condition

• alignment

• lubricant level

• lubricant specification

Even a correctly installed CORTECO 01031738 may leak if the surrounding components are worn or damaged.

FAQ

What are the dimensions of CORTECO 01031738?

The verified dimensions are 32x44x18.5 mm.

What construction does CORTECO 01031738 use?

It features RWDR-KOMBI combined radial shaft seal construction.

What material is CORTECO 01031738 made from?

Product catalogue data identifies HNBR (Hydrogenated Nitrile Butadiene Rubber).

Are CORTECO 01031738 and 01031738B the same product?

01031738 is the primary product number, while 01031738B is the aftermarket catalogue reference for the same sealing version.

Which ZF number corresponds to CORTECO 01031738?

The confirmed cross-reference is ZF 7852033167.

Is CORTECO 01031738 a standard 32x44 oil seal?

No. It has RWDR-KOMBI construction and an 18.5 mm height, making it different from many standard 32x44 seals.

Is 32x44x18 correct for CORTECO 01031738?

Commercial listings sometimes round the height, but CORTECO specifies 32x44x18.5 mm.

How should I choose a replacement?

Verify the complete CORTECO number, dimensions, RWDR-KOMBI construction, HNBR material and the ZF reference.

CORTECO 01031738 NEM RWDR-KOMBI - key information

CORTECO 01031738 is a combined RWDR-KOMBI radial shaft oil seal with verified dimensions of 32x44x18.5 mm. It is also referenced as 01031738B and 82031738, uses HNBR sealing material and is associated with ZF OE 7852033167. The complete part number, construction and height should always be verified before replacement.

Available from simmering.pl

CORTECO 01031738 NEM RWDR-KOMBI 32x44x18.5 mm is available from simmering.pl for transmission specialists, industrial maintenance teams, workshops and B2B customers.

The product is supplied from stock in Poland with worldwide shipping. simmering.pl also provides assistance with seal identification based on CORTECO numbers, OE references and technical dimensions.