BK4-100 Bearing Kit One Wheel

BK4-100 Bearing Kit One Wheel

$49.99
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BK4-100 Bearing Kit One Wheel

BK4-100 Bearing Kit One Wheel

$49.99

Keep your heavy-duty trailer rolling with confidence using the BK4-150 Bearing Kit – One Wheel. Designed for compatible 7,200–8,000 lb oil bath trailer axles, this complete bearing kit includes everything needed to service one trailer hub, making it the ideal choice for routine maintenance, wheel bearing replacement, or rebuilding a worn hub. Each kit services one wheel and includes the bearings, races, oil seal, and hardware needed for a complete hub service.

Wheel bearings are one of the most important components of your trailer's running gear. After thousands of miles of towing, heavy loads, and exposure to heat, moisture, and road debris, bearings and seals naturally wear out. Replacing them before they fail helps prevent damaged hubs, worn spindles, overheating, and costly roadside breakdowns, keeping your trailer safe and ready for every haul.

Features & Benefits

  • Complete bearing kit for servicing one trailer wheel
  • Designed for compatible 7,200–8,000 lb oil bath trailer axles
  • Includes bearings, races, oil seal, and installation hardware
  • Helps restore smooth, dependable wheel rotation
  • Maintains proper hub performance and oil bath lubrication
  • Protects trailer hubs, bearings, and spindles from premature wear
  • Ideal for preventative maintenance, trailer repairs, and hub rebuilds
  • Quality components built for reliable, long-lasting performance

Perfect For

Ideal for heavy-duty equipment trailers, flatbed trailers, gooseneck trailers, dump trailers, livestock trailers, commercial trailers, and other trailers equipped with compatible 7.2K–8K oil bath axle systems.

Whether you're preparing for a long haul, rebuilding a trailer hub, or performing scheduled maintenance, the BK4-150 Bearing Kit helps keep your trailer road-ready. Replacing worn bearings and seals on a regular maintenance schedule extends the life of your trailer hubs, improves towing performance, and helps prevent expensive repairs before they happen.

Protect your trailer investment with a quality bearing kit that delivers dependable performance, smoother towing, and peace of mind every mile down the road.

Note: Please verify compatibility with your trailer hub and axle before ordering.


Inner Bearing: 1.750" (ID)
Inner Race: 3.265" (OD)
Outer Bearing: 1.250" (ID)
Outer Race: 2.688" (OD)
Grease Seal: 2.250" (ID

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