CORTECO 01036174B 24.9x40x8 mm ACM B1BASLRD Rotary Shaft Seal

AI Overview

The CORTECO 01036174B is a premium OEM-quality rotary shaft seal designed for automatic transmission applications in Audi and VAG vehicles. Measuring 24.9x40x8 mm, it is manufactured from ACM (Polyacrylate Rubber) and features the advanced B1BASLRD sealing profile with a spring-loaded primary sealing lip, an integrated dust lip and a right-hand helix. This design provides outstanding sealing performance, minimizes lubricant leakage and offers excellent resistance to elevated operating temperatures commonly found in automatic transmissions. Compatible with OEM reference Audi / VAG 0AW311113.

What Makes This Model Different?

The CORTECO 01036174B has been developed specifically for demanding automatic transmission applications.

Key advantages include:

• Genuine CORTECO product
• OEM-quality manufacturing
• B1BASLRD sealing profile
• Premium ACM material
• Spring-loaded sealing lip
• Integrated dust lip
• Right-hand helix (right-hand twist)
• Excellent resistance to transmission oils
• High temperature resistance
• Long service life

Construction and Operating Principle

The seal consists of:

• Primary sealing lip
• Dust protection lip
• Garter spring
• Reinforced steel insert
• ACM elastomer body

The spring-loaded sealing lip maintains constant radial pressure on the rotating shaft while the right-hand helix assists lubricant return during shaft rotation. The additional dust lip protects the primary sealing edge against contamination, significantly extending seal life.

Material Properties

The seal is manufactured from ACM (Polyacrylate Rubber).

Material advantages include:

• Excellent resistance to high temperatures
• Outstanding resistance to automatic transmission fluids
• Very good resistance to oxidation
• Excellent ageing resistance
• High wear resistance
• Stable mechanical properties
• Low compression set
• Long operating life

ACM is widely used in modern transmission sealing systems where higher operating temperatures exceed the capabilities of conventional NBR materials.

Typical Applications

Typical applications include:

• Automatic transmissions
• Transmission input shafts
• Transmission output shafts
• Gearbox assemblies
• Passenger vehicles
• Automotive driveline systems
• Transmission rebuilding
• OEM replacement service
• Automotive workshops
• Professional transmission repair

Typical Failure Symptoms

Replacement is recommended if any of the following symptoms occur:

• Transmission oil leakage
• Fluid contamination
• Hardened sealing lip
• Damaged dust lip
• Shaft wear
• Visible seal damage
• Loss of transmission fluid
• Reduced sealing efficiency

Recommended During Maintenance

During installation it is recommended to inspect:

• Shaft sealing surface
• Housing bore
• Bearing condition
• Shaft alignment
• Transmission fluid quality
• Ventilation system
• Installation depth
• Adjacent seals
• Mating components
• Proper installation tools

Technical Specification

Manufacturer: CORTECO

Part Number: 01036174B

Type: Rotary Shaft Seal

Design: B1BASLRD

Material: ACM (Polyacrylate Rubber)

Inner Diameter: 24.9 mm

Outer Diameter: 40 mm

Width: 8 mm

Spring: Yes

Dust Lip: Yes

Helix Direction: Right-hand Twist

Operating Temperature: Suitable for the operating temperature range typical of ACM rotary shaft seals used in automatic transmissions.

Application: Automatic transmission shaft sealing for Audi and VAG vehicles requiring OEM reference 0AW311113.

OEM Cross References

Audi

• 0AW311113

VAG

• 0AW311113

Manufacturer

• CORTECO 01036174B

Cross References

• ELRING 178.950

Always verify compatibility using the OEM number or vehicle VIN before installation.

Related Components

Frequently replaced together with:

• Automatic transmission bearings
• Shaft bearings
• O-rings
• Transmission seals
• Repair sleeves
• Automatic transmission fluid
• Gaskets
• Retaining rings
• Assembly grease
• Installation tools

Why B2B Customers Choose CORTECO

Professional transmission specialists choose CORTECO because of:

• OEM-quality production
• Freudenberg sealing technology
• Precision dimensional tolerances
• Excellent sealing efficiency
• Long service life
• Reliable operation
• Consistent manufacturing quality
• Global reputation in automotive sealing

Professional Industrial Supply

This product is regularly supplied to:

• Automatic transmission repair specialists
• Automotive workshops
• Engine rebuilding companies
• Fleet maintenance providers
• Technical distributors
• Industrial maintenance departments
• Mechanical workshops
• OEM replacement specialists
• Production facilities
• Automotive parts wholesalers

Popular Searches

• CORTECO 01036174B
• 24.9x40x8 Oil Seal
• 24.9x40x8 Rotary Shaft Seal
• B1BASLRD Oil Seal
• ACM Shaft Seal
• Audi 0AW311113
• VAG 0AW311113
• Automatic Transmission Oil Seal
• Transmission Shaft Seal
• CORTECO Transmission Seal

FAQ

What does B1BASLRD mean?

B1BASLRD is an advanced rotary shaft seal profile featuring a spring-loaded sealing lip, an additional dust lip and a right-hand helix that improves lubricant retention in rotating applications.

Why is ACM used instead of NBR?

ACM provides significantly better resistance to elevated temperatures, oxidation and automatic transmission fluids, making it ideal for modern transmission systems.

Is the seal supplied ready for installation?

Yes. The seal is supplied fully assembled and ready for professional installation.

Is this an OEM replacement?

Yes. It replaces Audi / VAG OEM number 0AW311113.

Should the shaft be inspected before installation?

Yes. A worn or damaged shaft surface can significantly reduce sealing performance and shorten the service life of the new seal.