Trunnion Shaft Nut 4 Inches 334‑498 – Fits Mack Trucks Heavy‑Duty Suspension Fastener

The 4-inch Trunnion Nut is a robust fastener used in Mack truck suspension systems, specifically designed to secure the trunnion bar or trunnion caps within heavy-duty walking beam setups. Manufactured for durability and high-torque performance, this nut ensures structural integrity under high-load conditions, helping maintain suspension alignment and load distribution.

OEM Cross References:
334498, E5424, MX404, 6391

Key Features:
• Application: Mack walking beam suspension systems
• Secures trunnion bar or trunnion caps in heavy-duty setups
• Engineered for high-torque and heavy-load performance
• Heavy-duty steel construction for long service life
• Direct replacement for multiple OEM part numbers