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Harley Big Twin 5 Speed Clutch Shell Basket Ring Gear 1990-1993 Evo OEM 37707-90

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Harley Big Twin 5 Speed Clutch Shell Basket Ring Gear 1990-1993 Evo OEM 37707-90 photo 1 Harley Big Twin 5 Speed Clutch Shell Basket Ring Gear 1990-1993 Evo OEM 37707-90 photo 2 Harley Big Twin 5 Speed Clutch Shell Basket Ring Gear 1990-1993 Evo OEM 37707-90 photo 3 Harley Big Twin 5 Speed Clutch Shell Basket Ring Gear 1990-1993 Evo OEM 37707-90 photo 4 Harley Big Twin 5 Speed Clutch Shell Basket Ring Gear 1990-1993 Evo OEM 37707-90 photo 5

Description

Premium Factory Primary & Drivetrain Stock — Lifestyle Powersports Inventory Vault
Up for sale is a genuine, Harley-Davidson Factory OEM Big Twin 5-Speed Clutch Shell and Sprocket Basket Assembly (Part Number: #37707-90A / Replaces older index: #37707-90). Sourced from a clean warehouse layout, this cast aluminum outer friction plate basket and steel gear carrier assembly remains in excellent used garage condition. Unlike soft aftermarket reproduction drivetrain elements, this authentic factory-forged core utilizes hardened steel primary sprocket teeth and a robust starter ring gear to handle the high stress loops of high-compression Evolution engines.
Product Specifications & Mechanical Parameters:
  • Brand: Harley-Davidson (Original Equipment Manufacturer - OEM Performance Core)
  • Component Type: Transmission Clutch Outer Shell Basket / Primary Sprocket Carrier
  • Starter Ring Gear Sizing: 102-Tooth (102T Profile designed to mesh with 1989-1993 standard 9-tooth starter jackshaft pinion gears).
  • OEM Factory Part Number: #37707-90A (replaces legacy index #37707-90)
  • Platform Fitment Bounds: Direct factory drop-in replacement for standard 5-speed primary drive assemblies on 1990 to 1993 Harley-Davidson Big Twin Evolution models:
    • 1990–1993 Softail (Fat Boy FLSTF / Heritage FLSTC / Custom FXSTC / Springer)
    • 1990–1993 Touring (Electra Glide FLHT / Ultra Classic FLHTCU / Tour Glide)
    • 1991–1993 Dyna Glide (Super Glide FXD / Low Rider FXDL / Wide Glide FXDWG)
    • 1990–1993 FXR Series (Super Glide FXR / Low Rider FXRS / Sport Glide)
  • Exclusions: Will NOT fit early 1980–1989 5-speed setups (which use a totally separate starter engagement mechanism) or 1994–2006 models, which switched to a different pitch 102-tooth ring gear optimized for a 10-tooth starter pinion configuration.
  • Condition Details: Clean used garage stock. The cast aluminum clutch plate alignment fingers display straight, smooth tracking parameters with zero notched ridges or deep grooving damage. The teeth on the rear primary drive duplex sprocket and the 102T starter ring gear show sharp, even profile trajectories with zero flat spots or rolled metal lines. The pre-pressed central double-row ball bearing rotates smoothly with zero rough grinding or internal radial binding.

Harley Big Twin 5 Speed Clutch Shell Basket Ring Gear 1990-1993 Evo OEM 37707-90

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Premium Factory Primary & Drivetrain Stock — Lifestyle Powersports Inventory Vault Up for sale is a genuine, Harley-Davidson Factory OEM... Read more

1 in stock

$95.00

      Description

      Premium Factory Primary & Drivetrain Stock — Lifestyle Powersports Inventory Vault
      Up for sale is a genuine, Harley-Davidson Factory OEM Big Twin 5-Speed Clutch Shell and Sprocket Basket Assembly (Part Number: #37707-90A / Replaces older index: #37707-90). Sourced from a clean warehouse layout, this cast aluminum outer friction plate basket and steel gear carrier assembly remains in excellent used garage condition. Unlike soft aftermarket reproduction drivetrain elements, this authentic factory-forged core utilizes hardened steel primary sprocket teeth and a robust starter ring gear to handle the high stress loops of high-compression Evolution engines.
      Product Specifications & Mechanical Parameters:
      • Brand: Harley-Davidson (Original Equipment Manufacturer - OEM Performance Core)
      • Component Type: Transmission Clutch Outer Shell Basket / Primary Sprocket Carrier
      • Starter Ring Gear Sizing: 102-Tooth (102T Profile designed to mesh with 1989-1993 standard 9-tooth starter jackshaft pinion gears).
      • OEM Factory Part Number: #37707-90A (replaces legacy index #37707-90)
      • Platform Fitment Bounds: Direct factory drop-in replacement for standard 5-speed primary drive assemblies on 1990 to 1993 Harley-Davidson Big Twin Evolution models:
        • 1990–1993 Softail (Fat Boy FLSTF / Heritage FLSTC / Custom FXSTC / Springer)
        • 1990–1993 Touring (Electra Glide FLHT / Ultra Classic FLHTCU / Tour Glide)
        • 1991–1993 Dyna Glide (Super Glide FXD / Low Rider FXDL / Wide Glide FXDWG)
        • 1990–1993 FXR Series (Super Glide FXR / Low Rider FXRS / Sport Glide)
      • Exclusions: Will NOT fit early 1980–1989 5-speed setups (which use a totally separate starter engagement mechanism) or 1994–2006 models, which switched to a different pitch 102-tooth ring gear optimized for a 10-tooth starter pinion configuration.
      • Condition Details: Clean used garage stock. The cast aluminum clutch plate alignment fingers display straight, smooth tracking parameters with zero notched ridges or deep grooving damage. The teeth on the rear primary drive duplex sprocket and the 102T starter ring gear show sharp, even profile trajectories with zero flat spots or rolled metal lines. The pre-pressed central double-row ball bearing rotates smoothly with zero rough grinding or internal radial binding.

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