CORTECO 20034876 PTFE/ACM BAPTRDX7 50x70x11 Radial Shaft Oil Seal

What Is the CORTECO 20034876 Oil Seal?

The CORTECO 20034876 is a radial shaft oil seal with dimensions 50x70x11 mm, engineered for sealing the front crankshaft in automotive engines. Manufactured from a combination of PTFE (Polytetrafluoroethylene) and ACM (Polyacrylate Rubber), it offers excellent resistance to engine oils, elevated temperatures and high shaft speeds. The BAPTRDX7 design meets OEM specifications and replaces Citroen 0514C9, Fiat 504056152, Iveco 504056152 and Iveco 504274032. It is designed to provide reliable long-term sealing performance in demanding engine applications.

BAPTRDX7 Design

The BAPTRDX7 design is developed for modern crankshaft sealing systems operating under demanding conditions.

Key design features include:

• BAPTRDX7 sealing profile
• PTFE sealing lip
• ACM elastomer body
• Reinforced metal case
• Right-hand hydrodynamic sealing lip
• Designed for front crankshaft sealing applications

The PTFE sealing lip minimizes friction while maintaining excellent sealing efficiency at high rotational speeds.

Technical Specification

Manufacturer: CORTECO

Part Number: 20034876

Commercial Number: 20034876B

Product Type: Radial Shaft Oil Seal

Design: BAPTRDX7

Material: PTFE / ACM

Inside Diameter: 50 mm

Outside Diameter: 70 mm

Width: 11 mm

Rotation Direction: Right-hand helix

Installation Position: Front Crankshaft

PTFE and ACM Material Benefits

The combination of PTFE and ACM provides outstanding performance in engine sealing applications.

Main advantages include:

• Very low friction
• Excellent wear resistance
• High resistance to engine oils
• Excellent high-temperature performance
• Good resistance to ageing
• Reliable sealing at high shaft speeds
• Long service life

These material properties make PTFE/ACM seals suitable for modern internal combustion engines operating under demanding conditions.

Typical Applications

The CORTECO 20034876 is used in selected vehicles from manufacturers including:

• Citroen
• Peugeot
• Fiat
• Iveco

OEM replacement numbers:

• Citroen 0514C9
• Peugeot 0514C9
• Fiat 504056152
• Iveco 504056152
• Iveco 504274032

Always verify compatibility using the OEM number before installation.

How Does a Crankshaft Oil Seal Work?

A crankshaft oil seal creates a dynamic seal between the rotating crankshaft and the stationary engine housing.

Its primary functions are:

• Retaining engine oil
• Preventing oil leakage
• Protecting the engine against dust and moisture
• Maintaining proper lubrication
• Extending engine service life

The precision PTFE sealing lip ensures reliable sealing while minimizing friction and shaft wear.

Why Choose CORTECO?

CORTECO, part of the Freudenberg Group, is one of the world's leading manufacturers of automotive sealing solutions.

Key advantages include:

• OEM-quality manufacturing
• Precision-engineered sealing lip
• PTFE and ACM material technology
• Excellent durability
• High-temperature resistance
• Reliable crankshaft sealing
• Trusted by automotive manufacturers worldwide

Frequently Asked Questions (FAQ)

What are the dimensions of the CORTECO 20034876 oil seal?

The seal measures 50 mm inside diameter, 70 mm outside diameter, and 11 mm width.

What materials are used?

The sealing lip is manufactured from PTFE, while the outer sealing body is made from ACM (Polyacrylate Rubber).

Which OEM numbers does it replace?

It replaces:

• Citroen 0514C9
• Peugeot 0514C9
• Fiat 504056152
• Iveco 504056152
• Iveco 504274032

Where is this oil seal installed?

It is designed for installation on the front crankshaft of compatible engines.

Why is PTFE used instead of conventional rubber?

PTFE offers significantly lower friction, higher temperature resistance and improved durability, making it ideal for high-speed crankshaft sealing applications.

Is this an OEM-quality replacement?

Yes. CORTECO supplies sealing products that meet OEM specifications and are used by many vehicle manufacturers worldwide.