Primary Bearings and Seals

Select your vehicle to see Primary Bearings and Seals that fit

Primary Bearings and Seals for Harley Motorcycles

The inner primary bearing supports a rotating shaft inside the inner primary housing. The seal next to it keeps oil where it belongs. Over time a bearing can wear and a seal can harden or start to leak, which may show up as oil seepage, noise or extra play. Riders often replace both during primary service, after spotting a leak, or as part of a drivetrain refresh.

We currently have 2 products in stock, both from All Balls Racing. They are the All Balls Racing Harley FLHR Road King Inner Primary Bearing & Seal Kit HP and the All Balls Racing Harley FLD Dyna Switchback Inner Primary Bearing & Seal Kit OEM style. Each kit pairs the bearing with its seal, so both parts can be replaced at the same time.

  • Confirm that your model and year match the listing before you order.
  • Read the product description to understand the kit style, such as HP or OEM style.
  • Replace the seal whenever the bearing comes out, since a used seal may not reseal well.

To see what fits your bike, pick your vehicle above.

Primary Bearings and Seals for Harley Motorcycles

The inner primary bearing supports a rotating shaft inside the inner primary housing. The seal next to it keeps oil where it belongs. Over time a bearing can wear and a seal can harden or start to leak, which may show up as oil seepage, noise or extra play. Riders often replace both during primary service, after spotting a leak, or as part of a drivetrain refresh.

We currently have 2 products in stock, both from All Balls Racing. They are the All Balls Racing Harley FLHR Road King Inner Primary Bearing & Seal Kit HP and the All Balls Racing Harley FLD Dyna Switchback Inner Primary Bearing & Seal Kit OEM style. Each kit pairs the bearing with its seal, so both parts can be replaced at the same time.

  • Confirm that your model and year match the listing before you order.
  • Read the product description to understand the kit style, such as HP or OEM style.
  • Replace the seal whenever the bearing comes out, since a used seal may not reseal well.

To see what fits your bike, pick your vehicle above.