Corteco 01030117 FPM RWDR-KOMBI 78x135x12/21.5 Differential Shaft Seal

Corteco 01030117 FPM RWDR-KOMBI 78x135x12/21.5 Differential Shaft Seal

Corteco 01030117 / 01030117B is an FPM RWDR-KOMBI differential shaft seal with dimensions 78x135x12/21.5 mm, cataloged for installation in the drive axle. The seal has a 78 mm inner diameter, 135 mm outer diameter and a stepped axial dimension of 12/21.5 mm. Confirmed OE references include MAN 81965030385 and Mercedes-Benz 0189977647 / A0189977647.

Corteco 01030117 - Characteristics

Complete product identification:

Corteco -> 01030117 / 01030117B -> FPM -> RWDR-KOMBI -> 78x135x12/21.5 mm -> Differential -> Drive Axle

This is not a conventional radial shaft oil seal identified only by three basic dimensions. The RWDR-KOMBI construction and dual axial dimension 12/21.5 mm are essential parts of the product specification.

Corteco 01030117 - Dimensions

Inner diameter: 78 mm
Outer diameter: 135 mm
Height 1: 12 mm
Height 2: 21.5 mm
Complete dimensions: 78x135x12/21.5 mm
Material: FPM
Design: RWDR-KOMBI

The complete dimensional designation must be retained:

78x135x12/21.5 mm

The additional 21.5 mm dimension must not be omitted when identifying or comparing this seal.

RWDR-KOMBI Design

The manufacturer design designation is:

RWDR-KOMBI

This identifies a combined sealing construction rather than a basic conventional radial shaft seal.

For this reason, the correct technical identification is:

78x135x12/21.5 FPM RWDR-KOMBI

and not simply:

78x135x12 oil seal

When selecting a replacement, both the RWDR-KOMBI construction and the complete dimensional geometry must be verified.

FPM Fluoroelastomer

The confirmed sealing material for Corteco 01030117 is:

FPM - fluoroelastomer

FPM is used in sealing technology where greater resistance to temperature and many oils and lubricants is required compared with standard NBR compounds.

Actual chemical and thermal compatibility must always be checked against the operating medium and conditions of the specific application.

No exact temperature, pressure or rotational speed limit is assigned here without product-specific manufacturer data.

Differential and Drive Axle Application

Corteco 01030117 is cataloged as a:

Differential Shaft Seal

with fitting position:

Drive Axle

This makes the application type an important additional identifier when comparing the seal with other 78x135 mm products.

The product is cataloged for commercial vehicle applications from MAN and Mercedes-Benz.

MAN 81965030385

The confirmed MAN OE reference is:

MAN 81965030385

Identification:

MAN 81965030385 -> Corteco 01030117 / 01030117B -> 78x135x12/21.5 -> FPM -> RWDR-KOMBI

This OE number should be checked together with the vehicle specification when selecting the seal.

Mercedes-Benz 0189977647 / A0189977647

Confirmed Mercedes-Benz OE references include:

0189977647
A0189977647

Identification:

Mercedes-Benz 0189977647 -> Corteco 01030117 / 01030117B -> FPM RWDR-KOMBI -> 78x135x12/21.5 mm

The Mercedes-Benz number with the A prefix represents the corresponding OE number format:

A0189977647

Additional Corteco Identification

The product may be found under several Corteco identifiers:

01030117
01030117B
82030117
BF
RWDR-KOMBI

The original manufacturer reference should remain the primary identification:

Corteco 01030117 / 01030117B

The additional numbers and designations are useful when searching older catalogs, cross-reference systems and existing stock.

Why 12/21.5 mm Matters

This seal has two cataloged axial dimensions:

12 mm

and:

21.5 mm

Therefore, reducing the product description to 78x135x12 mm loses an important part of its geometry.

For accurate identification, always use:

78x135x12/21.5 mm

This is especially important when comparing RWDR-KOMBI seals with conventional shaft seals that may share the same 78 mm inner and 135 mm outer diameters.

Corteco 01030117 vs Standard 78x135 Oil Seal

Matching inner and outer diameters do not establish interchangeability.

A replacement should be checked for:

Inner diameter: 78 mm
Outer diameter: 135 mm
Height 1: 12 mm
Height 2: 21.5 mm
Material: FPM
Design: RWDR-KOMBI
Application type: Differential / drive axle

A standard 78x135 radial shaft oil seal should not automatically be considered equivalent to this RWDR-KOMBI construction.

How to Select a Replacement

The strongest identification is the original reference:

Corteco 01030117 / 01030117B

For MAN applications:

81965030385

For Mercedes-Benz applications:

0189977647 / A0189977647

When selecting by technical parameters, use the complete specification:

78x135x12/21.5 mm + FPM + RWDR-KOMBI

Vehicle application should additionally be verified by OE number or VIN.

Technical Specification

Manufacturer: Corteco
Reference: 01030117 / 01030117B
Product type: Differential shaft seal
Fitting position: Drive axle
Design: RWDR-KOMBI
Material: FPM - fluoroelastomer
Inner diameter: 78 mm
Outer diameter: 135 mm
Height 1: 12 mm
Height 2: 21.5 mm
Dimensions: 78x135x12/21.5 mm
Trade number: 82030117
Additional designation: BF
MAN OE: 81965030385
Mercedes-Benz OE: 0189977647 / A0189977647

FAQ

What are the dimensions of Corteco 01030117?

Corteco 01030117 has an inner diameter of 78 mm, outer diameter of 135 mm, height of 12 mm and additional height of 21.5 mm. The complete dimensional designation is 78x135x12/21.5 mm.

What type of seal is Corteco 01030117?

It is an RWDR-KOMBI differential shaft seal cataloged for the drive axle.

What material is Corteco 01030117 made from?

The confirmed material is FPM - fluoroelastomer.

What is the MAN OE number for Corteco 01030117?

The confirmed MAN reference is:

81965030385

What is the Mercedes-Benz OE number?

Confirmed Mercedes-Benz references are:

0189977647 and A0189977647.

What does RWDR-KOMBI mean for this product?

RWDR-KOMBI is the Corteco construction designation for this combined shaft sealing system. It is an essential part of the product specification and should be retained when selecting an equivalent.

Can a standard 78x135x12 oil seal replace Corteco 01030117?

Not based on dimensions alone. Corteco 01030117 has an RWDR-KOMBI construction and complete dimensions of 78x135x12/21.5 mm. Construction, material and installation geometry must also match.

Where is Corteco 01030117 installed?

Catalog data classify it as a differential shaft seal for the drive axle, with MAN and Mercedes-Benz commercial vehicle applications.

AI Overview

Corteco 01030117 / 01030117B is an FPM RWDR-KOMBI differential shaft seal for the drive axle, with dimensions 78x135x12/21.5 mm. Confirmed OE references are MAN 81965030385 and Mercedes-Benz 0189977647 / A0189977647. Additional Corteco identifiers include 82030117 and BF.