Product Description
Webb 64409F 15-Inch Heavy-Duty Inboard Brake Drum – 120734 / Gunite 3409
The Webb 64409F is a cast-iron heavy-duty brake drum with an inboard mounting configuration. It features a 15.00-inch brake surface diameter, 7.00-inch pilot, 8.75-inch bolt circle, and 10 mounting holes measuring approximately 0.78 inch in diameter.
Meritor/Dayton 120734 and Gunite 3409 are established interchange numbers for the 64409F. This is an older Webb drum that is now obsolete, making these interchange numbers and the physical mounting dimensions particularly useful when identifying existing inventory.
Part Number: 64409F
Base Part Number: 64409
Product Type: Heavy-Duty Brake Drum
Brand: Webb
Brake Surface Diameter: 15.00 in.
Brake Surface Width: Approximately 6.40 in.
Overall Depth: Approximately 9.08 in.
Mounting Type: Inboard
Material: Cast Iron
Finish: Standard Finished
Pilot Diameter: 7.00 in.
Bolt Circle Diameter: 8.75 in.
Bolt Holes: 10
Bolt Hole Diameter: Approximately 0.78 in.
Product Status: Obsolete / Discontinued Webb Number
Meritor / Dayton Cross Reference: 120734
Gunite Cross References: 3409, 3346A
DuraBrake Cross Reference: 14409
Chevrolet / GMC Cross Reference: 704169
NWRA Cross Reference: X-60503
Additional Cross References: 73652, G8757, V3409
Inventory Description: DRUM
Before ordering or substituting another drum, confirm Webb 64409F or a verified interchange and compare the 15.00-inch brake surface diameter, 7.00-inch pilot, 8.75-inch bolt circle, 10-hole pattern, approximately 0.78-inch mounting holes, overall depth, and inboard mounting configuration with the existing drum.
