6990-HFB640001 OEM-Spec Oil-Resistant Temperature-Stable Steering Seal Kit for Mack Trucks

This 6990-HFB640001 steering gear seal kit is a complete, high-quality repair solution designed specifically for Mack truck steering systems, including all required seals, O-rings, and small components to fully rebuild the steering gear sector. Made from premium oil-resistant and temperature-stable materials, these seals effectively prevent hydraulic fluid leaks, eliminate steering play, and restore smooth, responsive steering performance under heavy-duty operating conditions. Built to meet strict OEM specifications, the kit ensures a precise fit, reliable sealing pressure, and long service life, helping to extend the life of the steering gear, reduce maintenance costs, and ensure safe and stable handling for daily use and long-haul operations.