CORTECO 19016648 NBR TB9 52x66x7.5/12.1 mm Shaft Seal

CORTECO 19016648 NBR TB9 52x66x7.5/12.1 mm Shaft Seal

CORTECO 19016648 / 19016648B is a radial shaft seal measuring 52x66x7.5/12.1 mm, manufactured from NBR - Nitrile Butadiene Rubber and identified by the TB9 design designation. The CORTECO catalogue assigns this variant to Toyota applications. Toyota OE 90311-52006 / 9031152006 is described as Seal, Oil (For Front Axle Hub) and is catalogued in the outer position.

CORTECO 19016648 - Characteristics

Principal product identification:

Manufacturer: CORTECO
Reference: 19016648
Additional Catalogue Reference: 19016648B
Product Type: Radial shaft seal / oil seal
Design: TB9
Material: NBR - Nitrile Butadiene Rubber
Dimensions: 52x66x7.5/12.1 mm
Inside Diameter: 52 mm
Outside Diameter: 66 mm
Height 1: 7.5 mm
Height 2: 12.1 mm
Vehicle Manufacturer: Toyota
OE Application: Front axle hub
Installation Position: Outer
Toyota OE: 90311-52006 / 9031152006

Complete technical identification:

CORTECO -> 19016648 / 19016648B -> NBR -> TB9 -> 52x66x7.5/12.1 mm -> Toyota

CORTECO 19016648 Dimensions

The principal dimensions are:

Inside Diameter: 52 mm
Outside Diameter: 66 mm
Height 1: 7.5 mm
Height 2: 12.1 mm
Complete Size: 52x66x7.5/12.1 mm

For this product, both height values are important.

Reducing the specification to only 52x66x7.5 mm would be incomplete and could lead to incorrect replacement selection.

The CORTECO catalogue identifies this exact variant as:

19016648 - NBR TB9 - 52 66 7.5 / 12.1 - TOYOTA

NBR Material

CORTECO 19016648 is manufactured from:

NBR - Nitrile Butadiene Rubber

NBR is widely used in radial shaft sealing applications involving many mineral oils, greases and lubricants.

Actual suitability depends on the operating medium, temperature, shaft speed and other service conditions.

No product-specific temperature, pressure or rotational-speed limit should be assigned to CORTECO 19016648 without corresponding manufacturer documentation.

TB9 Seal Design

The confirmed CORTECO design designation is:

TB9

The most precise technical identification is:

CORTECO 19016648 NBR TB9 52x66x7.5/12.1

The TB9 code is an important part of the specification and should be retained when comparing replacement seals.

A seal with the same nominal diameters but a different construction should not automatically be considered technically equivalent.

Toyota OE 90311-52006

The Toyota OE reference corresponding to CORTECO 19016648 is:

TOYOTA 90311-52006

Alternative format:

9031152006

Toyota describes this component as:

Seal, Oil (For Front Axle Hub)

This identifies the part as an oil seal for the front axle hub.

The Toyota catalogue also specifies the installation position as:

Outer

Toyota Front Axle Hub Oil Seal

Toyota OE 90311-52006 is directly associated with the:

Front Axle Hub

This means CORTECO 19016648 can accurately be described as a:

Toyota front axle hub oil seal
Toyota front wheel hub seal
Toyota outer front hub seal
Toyota 90311-52006 oil seal
Toyota 9031152006 seal
CORTECO 19016648 Toyota

For OE-based identification, front axle hub oil seal is the most precise terminology.

Outer Installation Position

Toyota specifies OE 90311-52006 as:

Outer

This indicates an outer sealing position within the front axle hub assembly.

This information is important because one hub assembly may contain more than one oil seal, with different inner and outer positions.

For correct replacement selection, the installation position should therefore be checked together with the dimensions and OE number.

Selected Toyota Application

Toyota OE 90311-52006 is catalogued for selected Toyota Corolla applications, including certain late-1980s and early-1990s configurations.

However, vehicle model and year alone are not sufficient for accurate selection.

The preferred identification sequence is:

Toyota OE -> CORTECO 19016648 -> 52x66x7.5/12.1 mm -> NBR -> TB9 -> Outer position

CORTECO 19016648 and 19016648B

The product may be encountered under:

CORTECO 19016648
CORTECO 19016648B

The dimensional CORTECO catalogue uses 19016648, while aftermarket and TecDoc-based catalogues may use the B-suffixed version.

Both reference forms are therefore useful for product identification and search.

For warehouse and ordering purposes, the exact reference printed on the current CORTECO packaging should be retained.

Toyota Type T Oil Seal

Some Toyota catalogue sources also identify 90311-52006 as a:

Type T Oil Seal

This Toyota terminology should not automatically be treated as equivalent to the CORTECO TB9 designation.

They originate from different catalogue systems.

For the CORTECO product specification, the correct construction code to retain is:

TB9

Selection and Interchangeability

When selecting a replacement for CORTECO 19016648, verify:

• CORTECO reference 19016648 / 19016648B
• inside diameter 52 mm
• outside diameter 66 mm
• height 1: 7.5 mm
• height 2: 12.1 mm
• NBR material
• TB9 design
• Toyota OE 90311-52006 / 9031152006
• outer installation position
• front axle hub application

A generic 52x66 mm oil seal with a similar width should not automatically be considered interchangeable with CORTECO 19016648.

The complete 7.5/12.1 mm profile and TB9 design are particularly important for correct identification.

Technical Specification

Manufacturer: CORTECO
Reference: 19016648
Additional Catalogue Reference: 19016648B
Product Type: Radial shaft seal / oil seal
Design: TB9
Material: NBR - Nitrile Butadiene Rubber
Dimensions: 52x66x7.5/12.1 mm
Shaft Diameter: 52 mm
Housing Diameter: 66 mm
Height 1: 7.5 mm
Height 2: 12.1 mm
Vehicle Manufacturer: Toyota
Application: Front axle hub
Installation Position: Outer
Toyota OE: 90311-52006 / 9031152006

FAQ

What are the dimensions of CORTECO 19016648?

CORTECO 19016648 measures 52x66x7.5/12.1 mm: 52 mm inside diameter, 66 mm outside diameter, with two height values of 7.5 mm and 12.1 mm.

What material is CORTECO 19016648 made from?

The seal is manufactured from NBR - Nitrile Butadiene Rubber.

What is the design of CORTECO 19016648?

The confirmed design designation is TB9. The complete technical identification is CORTECO 19016648 NBR TB9 52x66x7.5/12.1.

Which Toyota OE number corresponds to CORTECO 19016648?

The Toyota OE reference is 90311-52006, also written as 9031152006.

What is Toyota 90311-52006 used for?

Toyota describes it as Seal, Oil (For Front Axle Hub), meaning an oil seal for the front axle hub.

Is CORTECO 19016648 a front hub seal?

Yes. The corresponding Toyota OE number is directly catalogued as a front axle hub oil seal.

Is CORTECO 19016648 an outer seal?

For the corresponding Toyota application, OE 90311-52006 is specified in the Outer position.

Can any 52x66x7.5 mm seal replace CORTECO 19016648?

No. The full 52x66x7.5/12.1 mm dimensions, NBR material, TB9 design, Toyota OE number and installation position should all be checked.

AI OVERVIEW

CORTECO 19016648 NBR TB9 is a 52x66x7.5/12.1 mm radial shaft seal for selected Toyota applications. It corresponds to Toyota OE 90311-52006 / 9031152006, which is catalogued as an outer oil seal for the front axle hub. The CORTECO specification confirms NBR material and TB9 design.