Two bottles of Drag Specialties Transmission Oil for Harley-Davidson from Drag Specialties, including one SAE 80W-90 mineral oil and one SAE 80W-140 premium synthetic transmission oil, both formulated specifically for high-performance Big Twin transmissions.
Two bottles of Drag Specialties Transmission Oil for Harley-Davidson from Drag Specialties, including one SAE 80W-90 mineral oil and one SAE 80W-140 premium synthetic transmission oil, both formulated specifically for high-performance Big Twin transmissions.
Two bottles of Drag Specialties Transmission Oil for Harley-Davidson from Drag Specialties, including one SAE 80W-90 mineral oil and one SAE 80W-140 premium synthetic transmission oil, both formulated specifically for high-performance Big Twin transmissions.
Two bottles of Drag Specialties Transmission Oil for Harley-Davidson from Drag Specialties, including one SAE 80W-90 mineral oil and one SAE 80W-140 premium synthetic transmission oil, both formulated specifically for high-performance Big Twin transmissions.

Drag Specialties Transmission Oil for Harley-Davidson

Sale price$14.95

SKU: 110-0345

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Drag Specialties Transmission Oil for Harley-Davidson

Harley-Davidson transmissions are remarkably tough, long-lived units if given a modicum of care. Part of that modest maintenance includes regular fluid exchanges. 

  • Choice of conventional or synthetic formulation
    • Conventional oil weight 80W90
    • Synthetic oil weight 85W140
  • Suitable for use in 4-, 5-, and 6-speed Harley-Davidson Big Twin transmissions
  • Outstanding film strength provides excellent wear protection and durability
  • Contains an extensive EP additive package
  • Provides smooth shifting across all RPMs
  • Made in the USA
  • 4-, 5-, and 6-speed Harley-Davidson Big Twin transmissions
  • 110-0345 Conventional 80W90; replaces 3603-0070
  • 110-0346 Synthetic 80W140; replaces 3603-0071

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