The Meritor Air Spring Box, part number MAF9321-B or MAF9321B, is a genuine Meritor brake system component for heavy-duty truck applications. The air spring box is a critical part of the air brake actuation system, housing the air spring that converts air pressure into the mechanical force needed to apply the brakes. Sourced directly from Meritor, this part carries the engineering integrity the brand is known for in commercial vehicle brake systems. Pro Gear and Transmission carries genuine Meritor parts - call us to confirm this is the correct part for your specific axle or brake assembly before ordering.
Features
Genuine Meritor part number MAF9321-B or MAF9321B
Air spring box component for heavy-duty truck brake systems
Designed for use in air brake actuation assemblies
Sold by Pro Gear and Transmission
Call us to verify fitment for your specific application
