Gunite 3721BX cross reference.
The Gunite 3721BX is a 15″ × 6.56″ heavy-duty truck brake drum with 8 bolt holes on a 10.83″ bolt circle. It interchanges with 10 other part numbers. TBP Auto manufactures brake drums to this spec in Vietnam — zero US AD/CVD duty, quoted within 24 hours.
DRUM SPECIFICATIONS
VARIANT 1
Brake surface diameter15″
Width6.56″
Height8.79″
Hub pilot9″
Bolt circle10.83″
Bolt holes8
Hole diameter0.97″
VARIANT 2
Brake surface diameter15″
Width4.78″
Height8.79″
Hub pilot9″
Bolt circle10.83″
Bolt holes8
Hole diameter1″
VARIANT 3
Brake surface diameter15″
Width4.53″
Height9.04″
Hub pilot9″
Bolt circle10.83″
Bolt holes8
Hole diameter0.97″
ALSO CROSSES TO
WEBB 66830BDAYTON 123331FEDERAL MOGUL BD126397DAYTON 123345WEBB 65543BWEBB 68872BGUNITE 3741GUNITE 3596AGUNITE 3645ALLIANCE N42A107902
WE CAN MAKE THIS DRUM
Manufactured to spec, quoted within 24 hours.
Gunite 3721BX is in our reference database with full dimensional data. We manufacture to OEM drawings with G3500 gray iron and full batch traceability. Send the part number and quantity.
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