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Peterbilt 300 Series Unibilt Day Cab Suspension
Peterbilt 300 Series Unibilt Day Cab Suspension
Peterbilt 300 Series Unibilt Day Cab Suspension

Peterbilt 300 Series Unibilt Day Cab Suspension

Instructions

The Peterbilt 300 Series Unibilt Day Cab Air Ride Suspension Kit provides a complete, pre-assembled solution for converted day cabs, eliminating the need to reuse old factory components.

Riser Plate Requirement: Models such as the 357, 367, and 386 require an additional riser plate to account for variations in the cab-to-floor height alignment. RISER PLATE

Key Features & Advantages

  • Complete Pre-Assembled System: Includes all new mounting hardware required to anchor the suspension directly from the cab to the frame cross-member—you will not need to reuse any old, worn-out parts.

  • Solves Rust & Wear Friction: Replaces the factory under-sleeper air ride components, which are often seized, corroded, or difficult to disassemble and relocate.

  • Corrosion Resistance: Features heavy-duty, powder-coated brackets designed for long-term weatherproofing and a clean, professional finish.

Installation & Compatibility Note

  • Standard Fitment: Designed specifically for Peterbilt Unibilt models.

  • Riser Plate Requirement: Models such as the 357, 367, and 386 require an additional riser plate to account for variations in the cab-to-floor height alignment. RISER PLATE