O" Ring-Buna N

O" Ring-Buna N

This Buna-N O-ring is a high-quality seal designed for specific applications in concrete mixing equipment. It functions as the primary seal for the lid on Tulsa Chute Swing Gearboxes commonly found on Terex Advance and Indiana Phoenix front discharge mixers. Made from durable Nitrile rubber, it provides excellent resistance to petroleum-based lubricants and hydraulic fluids found in gearbox systems. This part is essential for routine maintenance or gearbox repair to prevent fluid leaks and protect internal components from contamination.

Key Features

• Made from Buna-N (Nitrile) 70 durometer rubber for excellent resistance to petroleum-based oils and fuels.
• Functions as a direct replacement seal for gearbox lids.
• Standard AS568-155 size for consistent fitment.
• Prevents lubricant leakage and protects gearbox internals.

Fits These Mixers

McNeilus, Terex, Con-Tech. Commonly used as the lid seal for the 12651 Tulsa Chute Swing Gearbox on Terex Advance and Indiana Phoenix front discharge concrete mixer trucks.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.