Mid USA 78501 Bearing Bushing & Seal Kit Big Twin Primary

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Description

Mid-USA Bearing, Bushing & Seal Kit (Part #78501) designed for Harley-Davidson Big Twin primary drive assemblies. This complete kit provides everything needed to refresh worn bearings, bushings, and seals to restore smooth and reliable operation.


📌 Condition Note:

 

  • New aftermarket kit by Mid-USA

  • Complete set — bearings, bushings, and seals

  • High-quality components built to OEM spec

  • See photos for included parts

 


Perfect replacement kit for Harley-Davidson Big Twin owners needing a cost-effective solution to service or rebuild their primary drive system.


Product Features:

 

  • Brand: Mid-USA

  • Part Number: 78501

  • Bearing, bushing & seal kit

  • Designed for Harley-Davidson Big Twin primary

  • Condition: new, aftermarket

 


Compatibility (verify with Mid-USA catalog before purchase):

 

  • Harley-Davidson Big Twin models with compatible primary drives

  • Check Mid-USA or Harley service manual for specific years/models

 

Mid USA 78501 Bearing Bushing & Seal Kit Big Twin Primary

Product form

Mid-USA Bearing, Bushing & Seal Kit (Part #78501) designed for Harley-Davidson Big Twin primary drive assemblies. This complete kit provides... Read more

Out of stock

$36.00

    • Shipped today? Order within: Nov 12, 2026 10:00:00 -0500

    Description

    Mid-USA Bearing, Bushing & Seal Kit (Part #78501) designed for Harley-Davidson Big Twin primary drive assemblies. This complete kit provides everything needed to refresh worn bearings, bushings, and seals to restore smooth and reliable operation.


    📌 Condition Note:

     

    • New aftermarket kit by Mid-USA

    • Complete set — bearings, bushings, and seals

    • High-quality components built to OEM spec

    • See photos for included parts

     


    Perfect replacement kit for Harley-Davidson Big Twin owners needing a cost-effective solution to service or rebuild their primary drive system.


    Product Features:

     

    • Brand: Mid-USA

    • Part Number: 78501

    • Bearing, bushing & seal kit

    • Designed for Harley-Davidson Big Twin primary

    • Condition: new, aftermarket

     


    Compatibility (verify with Mid-USA catalog before purchase):

     

    • Harley-Davidson Big Twin models with compatible primary drives

    • Check Mid-USA or Harley service manual for specific years/models

     

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