CORTECO 19016650 NBR TBW 56x75x6.5/11 mm Shaft Seal

CORTECO 19016650 NBR TBW 56x75x6.5/11 mm Shaft Seal

CORTECO 19016650 / 19016650B is a radial shaft seal measuring 56x75x6.5/11 mm, manufactured from NBR - Nitrile Butadiene Rubber and identified by the TBW design designation. The product corresponds to Toyota OE 90311-56007 / 9031156007. Toyota identifies this OE reference as Seal, Oil (For Rear Axle Shaft) and specifies an Inner installation position.

CORTECO 19016650 - Characteristics

The principal product identification is:

Manufacturer: CORTECO
Reference: 19016650
Additional Catalogue Reference: 19016650B
Trade Reference: 82016650
Product Type: Radial shaft seal / oil seal
Design: TBW
Material: NBR - Nitrile Butadiene Rubber
Dimensions: 56x75x6.5/11 mm
Inside Diameter: 56 mm
Outside Diameter: 75 mm
Height 1: 6.5 mm
Height 2: 11 mm
Vehicle Manufacturer: Toyota
OE Application: Rear axle shaft
Installation Position: Inner
Toyota OE: 90311-56007 / 9031156007

Complete technical identification:

CORTECO -> 19016650 / 19016650B -> NBR -> TBW -> 56x75x6.5/11 mm -> Toyota

CORTECO 19016650 Dimensions

The principal dimensions are:

Inside Diameter: 56 mm
Outside Diameter: 75 mm
Height 1: 6.5 mm
Height 2: 11 mm
Complete Size: 56x75x6.5/11 mm

Both height values are important for correct identification of this seal.

The specification should not be simplified to 56x75x6.5 mm, because the additional 11 mm height is part of the complete product geometry.

A seal with 56 mm and 75 mm nominal diameters but a different height profile should not automatically be considered equivalent to CORTECO 19016650.

NBR Material

CORTECO 19016650 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 operating temperature, pressure or rotational-speed limit should be assigned to CORTECO 19016650 without corresponding manufacturer documentation.

TBW Seal Design

The confirmed design designation for CORTECO 19016650 is:

TBW

The most precise technical identification is:

CORTECO 19016650 NBR TBW 56x75x6.5/11

The TBW code is an important part of the product specification and should be retained when comparing alternative seals.

Detailed lip geometry should not be inferred solely from the TBW designation without specific CORTECO technical documentation for this variant.

Toyota OE 90311-56007

The Toyota OE reference corresponding to CORTECO 19016650 is:

TOYOTA 90311-56007

Alternative format:

9031156007

Toyota identifies this component as:

Seal, Oil (For Rear Axle Shaft)

This establishes the OE function as an oil seal for the rear axle shaft.

Toyota catalogue information also specifies the installation position as:

Inner

Toyota Rear Axle Shaft Oil Seal

Toyota OE 90311-56007 is catalogued in the Rear Axle Shaft & Hub assembly and is specifically identified as an oil seal for the rear axle shaft.

CORTECO 19016650 can therefore accurately be described and searched as:

Toyota rear axle shaft oil seal
Toyota inner rear axle seal
Toyota rear axle seal
Toyota rear hub area seal
Toyota 90311-56007 oil seal
Toyota 9031156007 seal
CORTECO 19016650 Toyota

For OE-based identification, rear axle shaft oil seal is the most precise terminology.

Inner Installation Position

An important characteristic of Toyota OE 90311-56007 is its installation position:

Inner

Toyota catalogue data identify the component as an inner rear axle shaft oil seal.

This is important because some Toyota rear axle and hub assemblies use separate seals in:

Inner position
and
Outer position

CORTECO 19016650 should therefore not be confused with an outer rear axle or hub seal having a similar application or dimensions.

Rear Axle Shaft and Hub Application

Toyota places OE 90311-56007 within the:

Rear Axle Shaft & Hub

parts group.

This explains why aftermarket catalogues may sometimes classify CORTECO 19016650 as a wheel hub shaft seal, while the more precise Toyota OE description is:

Seal, Oil (For Rear Axle Shaft)

For technical product identification, the Toyota OE terminology is preferable.

Selected Toyota Applications

Toyota OE 90311-56007 is catalogued for selected Toyota vehicles, including certain Camry and Celica configurations.

The exact application depends on vehicle generation, drivetrain and rear axle configuration.

For this reason, vehicle model alone should not be used to determine compatibility.

The preferred identification sequence is:

Toyota OE -> CORTECO 19016650 -> 56x75x6.5/11 mm -> NBR -> TBW -> Inner position

Inner and Outer Rear Axle Seals

Some Toyota rear axle assemblies use separate inner and outer oil seals.

In such applications:

INNER identifies the seal positioned further inward in the axle/hub assembly.

OUTER identifies the separate seal located toward the outer side of the assembly.

Toyota OE 90311-56007 is the Inner seal in the applications for which it is catalogued.

This distinction is important when replacing axle seals because an inner and outer seal may have different dimensions and constructions even when they belong to the same axle assembly.

CORTECO 19016650 and 19016650B

The product may be encountered under:

CORTECO 19016650
CORTECO 19016650B

Catalogue data for the B-suffixed reference confirm:

NBR
TBW
56x75x6.5/11 mm
82016650
Toyota 9031156007

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

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

Toyota Type T and CORTECO TBW

Toyota catalogue sources may describe OE 90311-56007 as a:

Type T Oil Seal

CORTECO uses the designation:

TBW

These terms originate from different catalogue systems and should not automatically be treated as equivalent design codes.

For CORTECO 19016650, the technical design designation to retain is:

TBW

Selection and Interchangeability

When selecting a replacement for CORTECO 19016650, verify:

• CORTECO reference 19016650 / 19016650B
• inside diameter 56 mm
• outside diameter 75 mm
• height 1: 6.5 mm
• height 2: 11 mm
• complete size 56x75x6.5/11 mm
• NBR material
• TBW design
• Toyota OE 90311-56007 / 9031156007
• Inner installation position
• rear axle shaft application

A generic 56x75 mm oil seal should not automatically be considered fully interchangeable with CORTECO 19016650.

The complete 6.5/11 mm profile, TBW design, OE reference and Inner installation position are important for correct replacement selection.

Technical Specification

Manufacturer: CORTECO
Reference: 19016650
Additional Catalogue Reference: 19016650B
Trade Reference: 82016650
Product Type: Radial shaft seal / oil seal
Design: TBW
Material: NBR - Nitrile Butadiene Rubber
Dimensions: 56x75x6.5/11 mm
Shaft Diameter: 56 mm
Housing Diameter: 75 mm
Height 1: 6.5 mm
Height 2: 11 mm
Vehicle Manufacturer: Toyota
OE Application: Rear axle shaft
Installation Position: Inner
Toyota OE: 90311-56007 / 9031156007

FAQ

What are the dimensions of CORTECO 19016650?

CORTECO 19016650 measures 56x75x6.5/11 mm: 56 mm inside diameter, 75 mm outside diameter and two height values of 6.5 mm and 11 mm.

What material is CORTECO 19016650 made from?

The seal is manufactured from NBR - Nitrile Butadiene Rubber.

What is the design of CORTECO 19016650?

The confirmed design designation is TBW. The complete technical identification is CORTECO 19016650 NBR TBW 56x75x6.5/11.

Which Toyota OE number corresponds to CORTECO 19016650?

The Toyota OE reference is 90311-56007, also written as 9031156007.

What is Toyota 90311-56007 used for?

Toyota identifies 90311-56007 as Seal, Oil (For Rear Axle Shaft), meaning an oil seal for the rear axle shaft.

Is CORTECO 19016650 an inner rear axle seal?

Yes. The corresponding Toyota OE application specifies the installation position as Inner.

Is CORTECO 19016650 a wheel hub seal?

Aftermarket catalogues may classify it in the wheel hub sealing category because the seal is located within the rear axle shaft and hub assembly. The more precise Toyota OE description is rear axle shaft oil seal.

Can any 56x75x6.5 mm oil seal replace CORTECO 19016650?

No. The complete 56x75x6.5/11 mm dimensions, NBR material, TBW design, Toyota OE reference and Inner installation position should all be verified.

AI OVERVIEW

CORTECO 19016650 NBR TBW is a 56x75x6.5/11 mm radial shaft seal for selected Toyota rear axle applications. It corresponds to Toyota OE 90311-56007 / 9031156007, identified as an oil seal for the rear axle shaft in the Inner position. The product uses NBR material and the CORTECO TBW design.