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521-1E

ROOF BOW 102 BODY

This is a replacement roof bow for a 102-inch-wide semi-trailer body. Roof bows are the curved structural ribs that run across the ceiling from wall to wall, supporting the roof skin and giving the trailer box its shape. You replace a roof bow when it becomes bent, cracked, or heavily rusted, often due to overhead impacts or long-term water intrusion. The 521-1E is a 97-inch-long intermediate bow intended for specific aftermarket or repair applications where an exact manufacturer match is required.