Upgrade or replace your worn-out fuel tank isolator with the Automann M203221-7, a heavy-duty rubber isolator designed to reduce vibration and protect fuel tanks on Peterbilt trucks. Built for durability and precision fit, this isolator ensures your fuel system remains secure and properly cushioned under all driving conditions.

Cross‑Reference Part Numbers

• OEM / Paccar Reference: N49‑6032 (commonly cited alongside M203221‑7)

• Peterbilt Original: N496032

• General Aftermarket Listings: Automann M203221‑7 is frequently sold simply under that number as a Peterbilt fuel‑tank strap isolator

Unfortunately, there are no detailed listings for alternate manufacturers like TRP or Velvac citing a direct cross with this part number. So the most reliable cross-reference remains:

Automann M203221‑7 = Peterbilt N496032 = Paccar N49‑6032

Size & Specification

• Length (Webbing): 7 ft (84 in)

• Width: 4.00 in (as listed in vendor specs)

• Material: High-grade rubber webbing – durable and vibration-resistant

• Application: Peterbilt truck fuel tank strap isolator