Spacer Block 388‑729 – Fits Mack Trucks Heavy‑Duty Suspension Component

The Mack Insulator Spacer Block is a rugged suspension component designed to provide proper spacing and vibration isolation within Mack truck suspensions. It acts as a buffer between major structural elements to reduce stress and prevent metal-to-metal contact. This block enhances ride comfort and protects other suspension components from premature wear.

OEM Cross References:
E31662, 338729, M878, E3689, 13QK246, 25157862

Key Features:
• Application: Mack truck suspension systems
• Provides spacing and vibration isolation
• Reduces stress and metal-to-metal contact
• Enhances ride comfort and suspension longevity
• Direct replacement for multiple OEM part numbers