Product Description
Webb 63637F 12.25 x 7.5 Heavy-Duty Inboard Brake Drum – 3467B / 122971
The Webb 63637F is a 12.25 x 7.5-inch cast-iron brake drum with an inboard mounting configuration. It uses a 7.00-inch pilot, 8.25-inch bolt circle, and 6-hole mounting pattern.
Gunite 3467B and Meritor/Dayton 122971 are established interchange numbers for the 63637F. Other useful interchange numbers include KIC 52511-01, Dayton HD24, DuraBrake 12637, and Automann 151.27502.
Part Number: 63637F
Base Part Number: 63637
Product Type: Heavy-Duty Brake Drum
Brand: Webb
Brake Size: 12.25 x 7.5 in.
Brake Surface Diameter: 12.25 in.
Brake Shoe Width: 7.50 in.
Brake Surface Flat: 7.81 in.
Overall Depth: 9.06 in.
Outside Diameter: Approximately 14.32 in.
Mounting Type: Inboard
Wheel Type: Spoke
Material: Cast Iron
Finish: Standard Finished / Unbalanced
Pilot Diameter: 7.00 in.
Bolt Circle Diameter: 8.25 in.
Bolt Holes: 6
Bolt Hole Diameter: 0.66 in.
Maximum Wear Diameter: 12.37 in.
Approximate Weight: 79–80 lb
Axle Position: Trailer
ABS Tone Ring Included: No
Outer Cooling Fins: No
Gunite Cross References: 3467, 3467B, 3467BX
Meritor / Dayton Cross References: 122971, 03-122971-002, 122606, 122819, 120493
KIC Cross Reference: 52511-01
Dayton Parts Cross Reference: HD24
DuraBrake Cross Reference: 12637
Automann Cross Reference: 151.27502
NAPA / Balkamp Cross Reference: 821-9022
NWRA Cross References: X-60105, X-60184
Additional Cross References: 2700-10, 34BD67BB, 8737, 91027, ZBR3467B
Inventory Description: 3467B DRUM 122971
Before ordering, confirm Webb 63637F or a verified interchange and compare the 12.25 x 7.5 brake size, 7.00-inch pilot, 8.25-inch bolt circle, 6-hole pattern, 0.66-inch mounting holes, 9.06-inch overall depth, and inboard mounting configuration with the existing drum.
