Gunite 3721X cross reference.
The Gunite 3721X is a 15″ heavy-duty truck brake drum with 10 bolt holes on a 11.25″ bolt circle. It interchanges with 7 other part numbers. TBP Auto makes TBP-0540032, an aftermarket replacement drum that interchanges with it.
DRUM SPECIFICATIONS
VARIANT 1
Brake surface diameter15″
Height8.86″
Hub pilot8.78″
Bolt circle11.25″
Bolt holes10
Hole diameter0.94″
TypeBUS
VARIANT 2
Brake surface diameter15″
Height8.87″
Hub pilot8.78″
Bolt circle11.25″
Bolt holes10
Hole diameter0.94″
TypeTruck Drum
VARIANT 3
Brake surface diameter15″
Height8.87″
Hub pilot8.78″
Bolt circle11.25″
Bolt holes10
Hole diameter0.94″
TypeTruck Drum
ALSO CROSSES TO
TBP EQUIVALENT
TBP-0540032
Steer drum (3721X family)
TBP aftermarket replacement for Gunite 3721X, cast in G3500 gray iron in Vietnam. Usually quoted within 24 hours.
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