CAT 8N-2730 Outer Diameter Metal Seal Ring (184.15 mm)

Product Overview

The CAT 8N-2730 Outer Diameter Metal Seal Ring is a genuine Caterpillar OEM exhaust pipe metal seal designed to create a secure, leak-free connection between exhaust system components. With an outside diameter of 184.15 mm, this precision-engineered seal ring prevents exhaust gas leakage while maintaining proper system pressure and performance in demanding operating conditions.

Manufactured from high-quality metal for durability and heat resistance, the 8N-2730 features an interlocking rectangular-hook design that fits securely into mating grooves, ensuring a reliable seal even under high temperatures and vibration. It is designed specifically for Caterpillar equipment and provides OEM fit, performance, and long service life.

Key Features

• Genuine Caterpillar OEM metal seal ring
• Outside diameter: 184.15 mm (7.25 in)
• Designed for exhaust pipe sealing applications
• Interlocking rectangular-hook construction
• Helps prevent exhaust gas leakage
• High-temperature and corrosion-resistant metal construction
• Maintains a secure, airtight connection between exhaust components
• Direct OEM replacement for compatible Caterpillar equipment
• Engineered to Caterpillar quality and durability standards
• Supports reliable engine exhaust system performance

Technical Specifications

Caterpillar has not yet published additional dimensional specifications for this part in the online catalog.

Compatible Caterpillar Equipment

The CAT 8N-2730 Metal Seal Ring is used on a variety of Caterpillar machines, including:

Track-Type Tractors

• D8L
• D9L
• D9N
• D9R
• D9T
• D10N
• D10R
• D11N
• D11R

Rippers

• 8
• 9
• 10
• 11

Pipelayer

• 589

Mining Excavators

• 5130
• 5130B

Bulldozers

• 8A
• 8S
• 9SU
• 9U
• 10SU
• 10U
• 11SU
• 11U

Winches

• 58
• 58L
• 59
• 59L
• 59N

Additional Compatibility Information

The CAT 8N-2730 Metal Seal Ring is specifically engineered for Caterpillar exhaust system applications. Because exhaust component configurations can vary by machine model and serial number, compatibility should always be confirmed using the machine Product Identification Number (PIN) or Serial Number (S/N) before ordering.

Benefits

Installing a genuine CAT 8N-2730 Metal Seal Ring helps:

• Prevent exhaust gas leaks
• Maintain proper exhaust system sealing
• Improve engine efficiency and emissions performance
• Reduce exhaust noise caused by leaking joints
• Increase service life of exhaust system components
• Ensure OEM fit, durability, and dependable long-term performance