CORTECO 15019947 HNBR 30x42.5x6.5 mm - Power Steering Shaft Seal - TRW

CORTECO 15019947 HNBR 30x42.5x6.5 mm - Power Steering Shaft Seal - TRW

CORTECO 15019947 / 15019947B is a precision radial rotary shaft seal associated with TRW steering applications. The seal measures 30x42.5x6.5 mm (1.181x1.673x0.256 in) and is currently cataloged as an HNBR - hydrogenated nitrile rubber seal. Important TRW cross-reference numbers include 36023031 and 0300080004009. CORTECO trade number: 82019947.

CORTECO 15019947 - Technical Specifications

Metric and Inch Dimensions

For U.S. customers, CORTECO 15019947B can be identified by both metric and approximate inch dimensions:

Inside diameter: 30 mm = 1.181 in

Outside diameter: 42.5 mm = 1.673 in

Width: 6.5 mm = 0.256 in

Complete metric size:

30x42.5x6.5 mm

Approximate inch size:

1.181x1.673x0.256 in

The metric dimensions should be treated as the primary dimensions when verifying the part. Inch values are conversions provided to make identification easier for customers in the United States.

HNBR - Hydrogenated Nitrile Rubber

Current aftermarket catalogs identify CORTECO 15019947B as an HNBR seal.

HNBR stands for hydrogenated nitrile butadiene rubber. It is an elastomer used in demanding technical sealing applications where the material selection must match the operating medium, temperature and mechanical conditions of the assembly.

For replacement purposes, the material should be considered together with the dimensions and original part number.

Do not select a replacement solely because another seal measures 30x42.5x6.5 mm.

The exact operating temperature, pressure and shaft-speed limits of this specific CORTECO seal should not be inferred solely from generic HNBR material data.

Steering and Power Steering Seal Application

CORTECO 15019947B is cataloged in the steering seal product family and is cross-referenced to TRW numbers.

This makes search terms such as:

power steering seal

steering gear seal

steering shaft seal

power steering shaft seal

TRW steering seal

relevant for product identification in the U.S. aftermarket.

Compatibility should nevertheless be confirmed by the original TRW reference, CORTECO part number and exact dimensions rather than by a generic steering-system description alone.

TRW Cross References

Important cross-reference numbers for CORTECO 15019947B include:

TRW 36023031

TRW 0300080004009

These numbers are particularly useful for U.S. buyers, rebuilders, repair shops and parts specialists searching by an existing TRW number.

When replacing an existing component, compare the complete number carefully.

In particular, the long TRW reference should be written as:

0300080004009

Retaining the leading zero improves exact part-number matching in catalogs and search systems.

CORTECO 15019947 and 15019947B

The seal can be encountered under two closely related CORTECO references:

15019947

15019947B

For current product searches, 15019947B is widely used as the manufacturer part number.

The CORTECO trade number associated with the product is:

82019947

The EAN is:

3358960146557

These identifiers provide additional ways to verify the product when the original packaging or TRW number is unavailable.

CORTECO Profile and Catalog Designation

Historical CORTECO dimensional documentation identifies reference 15019947 in the 30x42.5x6.5 mm steering-seal family and uses the profile designation BASFX2 with the historical material designation NEM.

Current aftermarket catalogs for 15019947B identify the seal as HNBR and commonly show BASF Simmerring as a trade or profile-related designation.

Because catalog terminology has changed between data sources and generations, the safest product identification is based on the complete combination:

CORTECO 15019947 / 15019947B

30x42.5x6.5 mm

HNBR in current catalog data

TRW 36023031

TRW 0300080004009

This avoids incorrectly treating historical catalog terminology as a different physical size.

Alternative Part Numbers and Search Terms

This product may be searched as:

CORTECO 15019947

CORTECO 15019947B

15019947 CORTECO

15019947B CORTECO

CORTECO 82019947

CORTECO 30x42.5x6.5

CORTECO HNBR 30x42.5x6.5

CORTECO BASF 30x42.5x6.5

CORTECO BASFX2 30x42.5x6.5

30x42.5x6.5 oil seal

30mm x 42.5mm x 6.5mm seal

30 mm ID 42.5 mm OD 6.5 mm seal

1.181 x 1.673 x 0.256 seal

power steering seal 30x42.5x6.5

steering gear seal 30x42.5x6.5

TRW power steering seal

TRW steering gear seal

TRW 36023031

36023031 seal

TRW 0300080004009

0300080004009 seal

36023031 CORTECO

0300080004009 CORTECO

These variations are useful for U.S. search engines, aftermarket catalogs, parts databases and AI-based product search.

Why Part Number Matching Matters

A shaft seal cannot be reliably identified by diameter alone.

Two seals with identical nominal dimensions can differ in:

elastomer material

sealing-lip geometry

profile construction

outside diameter design

application

operating conditions

OEM or aftermarket reference

For this reason, another 30x42.5x6.5 mm seal should not automatically be considered interchangeable with CORTECO 15019947B.

For the most reliable identification, compare:

15019947 / 15019947B

30x42.5x6.5 mm

HNBR

TRW 36023031

TRW 0300080004009

Can I Replace It With Any 30x42.5x6.5 mm Oil Seal?

No.

Matching dimensions are an important first step, but they do not prove interchangeability.

A generic 30x42.5x6.5 mm oil seal may have a different elastomer, sealing profile or application-specific construction.

For steering-system repairs, using the correct seal construction is especially important because the replacement must match the requirements of the specific steering assembly.

Use the CORTECO and TRW reference numbers whenever possible.

How to Identify the Correct Replacement

Before ordering, verify:

• CORTECO 15019947 or 15019947B
• TRW 36023031 or 0300080004009
• 30 mm shaft diameter
• 42.5 mm housing diameter
• 6.5 mm seal width
• HNBR material according to current catalog data
• original seal construction
• exact steering gear or steering-system application

If the original seal has a readable manufacturer number, use that number as the primary identification reference.

Installation Recommendations

Before installing the new seal, clean the shaft and housing thoroughly.

Inspect the shaft sealing surface for scratches, corrosion, grooves, burrs or other damage.

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

Do not hammer directly on the seal.

Protect the sealing element when passing it over threads, splines, grooves or sharp edges.

Verify the correct installation direction before pressing the seal into its final position.

For steering assemblies, follow the steering gear manufacturer's rebuilding and service procedures.

For Steering Gear Rebuilders and Repair Shops

CORTECO 15019947B is particularly relevant when a replacement seal is being identified from a CORTECO or TRW reference rather than from a vehicle application.

For professional rebuilders, hydraulic steering specialists and repair shops, the most useful identification data are:

CORTECO 15019947B

TRW 36023031

TRW 0300080004009

30x42.5x6.5 mm

HNBR

These references make it possible to search for the component independently of a specific vehicle make or model.

FAQ - CORTECO 15019947B

What size is CORTECO 15019947B?

The seal measures 30x42.5x6.5 mm, equivalent to approximately 1.181x1.673x0.256 inches.

What material is CORTECO 15019947B made from?

Current catalog data identify the material as HNBR - hydrogenated nitrile rubber.

Is CORTECO 15019947 the same as 15019947B?

15019947 is the earlier/base CORTECO reference, while 15019947B is commonly used as the current manufacturer part number.

What is the CORTECO trade number?

The trade number is 82019947.

What TRW number cross-references to CORTECO 15019947B?

Confirmed TRW references include 36023031 and 0300080004009.

Is the TRW number 300080004009 or 0300080004009?

Current cross-reference catalogs list the number as 0300080004009, including the leading zero.

Is CORTECO 15019947B a power steering seal?

The product is cataloged in the steering-seal family and carries TRW steering-related cross references. For a specific steering gear, compatibility should be verified using the exact TRW or CORTECO part number.

Can any 30x42.5x6.5 mm seal replace it?

No. Identical dimensions alone do not establish interchangeability. Material, seal construction, application and cross-reference numbers should also be verified.

CORTECO 15019947B - Key Information

CORTECO 15019947 / 15019947B is an HNBR radial rotary shaft seal measuring 30x42.5x6.5 mm (1.181x1.673x0.256 in) and associated with TRW steering applications. Confirmed cross references include TRW 36023031 and 0300080004009. CORTECO trade number is 82019947 and EAN is 3358960146557.

Available from simmering.pl, stock in Poland with worldwide shipping, including shipping to the United States.

simmering.pl supplies metric radial shaft seals, steering seals, O-rings and technical sealing solutions for professional repair shops, rebuilders, industrial maintenance and B2B customers worldwide.