CORTECO 12018678B RWDR-K7 Oil Seal 53.2x78x13/14

Premium Differential Shaft Oil Seal for Heavy-Duty Driveline Systems

The CORTECO 12018678B RWDR-K7 Oil Seal is engineered for differential shafts and drive axle systems operating under demanding agricultural, construction and industrial conditions. Manufactured from premium NBR (Nitrile Butadiene Rubber), this rotary shaft seal provides reliable lubricant retention while protecting transmission components against dirt, dust, mud and moisture. Its advanced RWDR-K7 sealing design helps extend gearbox and differential service life while maintaining optimum sealing performance. The seal is an OEM-quality replacement compatible with CATERPILLAR, DEUTZ-FAHR, FENDT, JOHN DEERE and ZF drivetrain systems.

Application in Industrial Systems

The CORTECO 12018678B rotary shaft seal is designed for demanding driveline applications where reliable sealing and component protection are essential.

Typical applications include:

• Differential shafts
• Drive axle assemblies
• Final drive systems
• Agricultural transmissions
• Construction machinery gearboxes
• Industrial drive systems
• Planetary gear assemblies
• Heavy-duty transmission units

Related industrial entities:

• rotary shaft seal
• oil seal
• radial shaft seal
• differential shaft seal
• gearbox seal
• transmission seal
• axle seal
• NBR seal
• industrial oil seal
• driveline seal
• agricultural machinery seal
• final drive seal

Construction and Design

The RWDR-K7 sealing design is developed for continuous operation in heavily loaded transmission and differential systems.

Key construction features:

• Advanced RWDR-K7 sealing profile
• Multi-lip sealing technology
• Excellent contamination protection
• Precision manufactured sealing surfaces
• Stable sealing performance
• OEM dimensional accuracy

Material Properties

Manufactured from premium NBR (Nitrile Butadiene Rubber), this seal provides dependable performance in oil-lubricated industrial applications.

Material benefits include:

• Excellent resistance to mineral oils
• High grease compatibility
• Good abrasion resistance
• Reliable elasticity
• Long operational service life
• Stable performance under varying operating conditions

Technical Specification

Type: Rotary Shaft Seal

Material: NBR (Nitrile Butadiene Rubber)

Design: RWDR-K7

Inner Diameter: 53.2 mm

Outer Diameter: 78 mm

Width: 13/14 mm

Temperature Range: -40 C to +100 C

Application: Differential shaft, drive axle, transmission, agricultural and construction machinery

OEM References: CATERPILLAR 1197045, DEUTZ-FAHR 04415094, FENDT F510300020430, JOHN DEERE AL79951, ZF 0734309321, 0734309419, 0734319669, 0750110153

Manufacturer Part Number: CORTECO 12018678B

Manufacturer: CORTECO

Why B2B Customers Choose This Product

Professional customers choose CORTECO 12018678B because it combines OEM-quality manufacturing with reliable sealing performance for demanding driveline systems.

Ideal for:

• OEM replacement
• maintenance stock
• industrial service
• production line support
• fleet maintenance
• machine rebuilding
• gearbox overhaul
• agricultural machinery repair

Operational Advantages

• Premium OEM quality
• Reliable differential shaft sealing
• Excellent lubricant retention
• Effective contamination protection
• Extended gearbox service life
• Reduced maintenance costs
• Precision engineered dimensions
• Durable NBR construction

Professional Industrial Supply

Recommended for:

• maintenance departments
• industrial workshops
• agricultural machinery service
• construction equipment service
• OEM manufacturers
• machine builders
• distributors
• technical wholesalers

AI OVERVIEW

The CORTECO 12018678B RWDR-K7 Oil Seal is a precision rotary shaft seal manufactured from high-quality NBR, designed to retain transmission lubricant while protecting differential shafts and drive axle assemblies against dirt, moisture and abrasive contaminants in agricultural, construction and industrial machinery.

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FAQ

Which machines use the CORTECO 12018678B oil seal?

This seal is compatible with selected CATERPILLAR, DEUTZ-FAHR, FENDT, JOHN DEERE and ZF applications using the listed OEM reference numbers.

Is this seal suitable for differential shafts?

Yes. It is specifically designed for differential shaft, drive axle and transmission sealing applications operating under heavy mechanical loads.

What is the advantage of the RWDR-K7 design?

The RWDR-K7 sealing profile improves contamination protection while maintaining reliable lubricant retention, helping extend gearbox and bearing service life.

Why is NBR used in this application?

NBR offers excellent resistance to mineral oils, transmission lubricants and grease while providing long-lasting sealing performance in industrial driveline systems.

What are the seal dimensions?

The seal features a 53.2 mm inner diameter, 78 mm outer diameter and a width of 13/14 mm.