Mack Trunnion Saddle – 4" Shaft, 5" Spring – Fits SS58 Camelback Suspension

The Mack Trunnion Saddle with 4" shaft and 5" spring support is a critical heavy-duty suspension component used in Mack SS58 Camelback rear axle systems. Also known as a Trunnion Seat, this part is engineered to hold the trunnion shaft firmly in place while allowing for controlled articulation and weight distribution.

Built for high-load environments, this saddle improves stability and extends the life of your suspension system.

OEM Cross References:
25130252, E5417, 338 731, 1207

Key Features:
• Size: 4-inch shaft x 5-inch spring width
• Suspension Compatibility: Mack SS58 Camelback
• Function: Supports rear axle and enables articulation
• Heavy-duty cast construction for maximum durability
• Direct-fit replacement for listed OEM numbers