NAPA Auto Parts Genuine Parts Company
8 Fairfax St SE
Leesburg,  VA  20175
(703) 777-2055
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Store Hours
Mon-Fri:7:30 AM-7:00 PM
Sat:8:00 AM-5:00 PM
Sun:9:00 AM-5:00 PM
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Axle Hub Assy - Utility Trailer 1

Axle Hub Assy - Utility Trailer 1

Part #: BK 7304451
Line: Balkamp

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Features & Benefits

Warranty: Standard : 1 Year


Includes marine grade, E-coated hub with bearings, seals, dust caps, and wheel nuts. Hubs come partially assembled, greased and ready for spindle. For use on all types of trailers. 4 stud on 4" bolt circle, or 5 stud on 4 1/2" bolt circle available.

  • Both 1.688 in. & 1.719 in. seals are included, 1.688 in. seal is installed w/ assembly
  • E-Coated finish protects against elements
  • 5 bolt pattern accepts most major manufacturers 10 - 15 in. wheels
  • Greased and ready for assembly
  • Inner hub bearing I.D. 1-3/8 in.
  • Outer hub bearing I.D. 1 1/16 in.


Brand Reliable
Wheel Stud Quantity 5
Installation Method Bolt On
Bolt Circle Diameter 4.5 in
Mounting Flange Inboard
Disc Wheel Hub Load Capacity 1750 lbs
Flange Diameter 6.5 in
Wheel Studs Included Yes
VMRS Code 018005005
SDS Required No
Recommended Axle Location Trailer Axle
Hub Pilot Diameter 2.5 in

Safety Information

Vehicle Fitment Guide

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