TwinPower TWP492875 65-E84 Big Twin Starter Ring Gear - 66 Teeth

These gears are black oxide-coated and heat-treated for maximum strength to give you the best performance possible.

• Precision-machined steel gears ensure positive starter pinion engagement without slip
• 66-tooth option for early models, 102-tooth for later 5-speeds
• Direct fit restores factory starter-to-flywheel drive ratio

The TwinPower TWP492875 65-E84 Big Twin Starter Ring Gear is designed to restore dependable starter-to-flywheel engagement on compatible Harley-Davidson applications. This 66-tooth ring gear is intended for early models and replaces Harley-Davidson part 33163-65B.

Key Features and Performance Benefits

• Precision-machined steel construction: Provides accurate gear engagement for reliable starting performance.
• Black oxide coating: Adds a protective finish to the gear surface.
• Heat-treated design: Enhances strength for demanding starter operation.
• Direct-fit replacement: Restores the factory starter-to-flywheel drive ratio on compatible applications.

Specifications and Technical Data

• Brand: TwinPower
• Part number: TWP492875
• Product type: Big Twin starter ring gear
• Replacement reference: Harley-Davidson 33163-65B
• Tooth count: 66 teeth
• Material: Steel
• Finish: Black oxide-coated
• Processing: Heat-treated

What's Included

One TwinPower 65-E84 Big Twin starter ring gear.

Fitment

Fits 1971-1977 Harley-Davidson FX Super Glide models, 1975-1977 FXE Super Glide models, and the 1977 FXS Low Rider.

Fitments:
1971 Harley Davidson FLH Electra Glide Base
1971 Harley Davidson FX Super Glide Base
1972 Harley Davidson FLH Electra Glide Base
1972 Harley Davidson FX Super Glide Base
1973 Harley Davidson FLH Electra Glide Base
1973 Harley Davidson FX Super Glide Base
1974 Harley Davidson FLH Electra Glide Base
1974 Harley Davidson FX Super Glide Base
1974 Harley Davidson FXE Super Glide Base
1975 Harley Davidson FLH Electra Glide Base
1975 Harley Davidson FX Super Glide Base
1975 Harley Davidson FXE Super Glide Base
1976 Harley Davidson FLH Electra Glide Base
1976 Harley Davidson FX Super Glide Base
1976 Harley Davidson FXE Super Glide Base
1977 Harley Davidson FLH Electra Glide Base
1977 Harley Davidson FX Super Glide Base
1977 Harley Davidson FXE Super Glide Base
1977 Harley Davidson FXS Low Rider Base
1978 Harley Davidson FLH Electra Glide Base
1978 Harley Davidson FX Super Glide Base
1978 Harley Davidson FXE Super Glide Base
1978 Harley Davidson FXS Low Rider Base
1979 Harley Davidson FLH Electra Glide Base
1979 Harley Davidson FXE Super Glide Base
1979 Harley Davidson FXEF Fat Bob Base
1979 Harley Davidson FXS Low Rider Base
1980 Harley Davidson FLH Electra Glide Base
1980 Harley Davidson FLHS Electra Glide Sport Base
1980 Harley Davidson FLT Tour Glide Base
1980 Harley Davidson FXB Sturgis Base
1980 Harley Davidson FXE Super Glide Base
1980 Harley Davidson FXEF Fat Bob Base
1980 Harley Davidson FXS Low Rider Base
1980 Harley Davidson FXWG Wide Glide Base
1981 Harley Davidson FLHS Electra Glide Sport Base
1981 Harley Davidson FLT Tour Glide Base
1981 Harley Davidson FXB Sturgis Base
1981 Harley Davidson FXE Super Glide Base
1981 Harley Davidson FXEF Fat Bob Base
1981 Harley Davidson FXS Low Rider Base
1981 Harley Davidson FXWG Wide Glide Base
1982 Harley Davidson FLHS Electra Glide Sport Base
1982 Harley Davidson FLT Tour Glide Base
1982 Harley Davidson FXB Sturgis Base
1982 Harley Davidson FXE Super Glide Base
1982 Harley Davidson FXEF Fat Bob Base
1982 Harley Davidson FXR Super Glide II Base
1982 Harley Davidson FXRS Low Glide Base
1982 Harley Davidson FXS Low Rider Base
1982 Harley Davidson FXWG Wide Glide Base
1983 Harley Davidson FLHS Electra Glide Sport Base
1983 Harley Davidson FLHTC Electra Glide Classic Base
1983 Harley Davidson FLT Tour Glide Base
1983 Harley Davidson FXDG Disc Glide Base
1983 Harley Davidson FXE Super Glide Base
1983 Harley Davidson FXEF Fat Bob Base
1983 Harley Davidson FXR Super Glide II Base
1983 Harley Davidson FXRS Low Glide Base
1983 Harley Davidson FXRT Sport Glide Base
1983 Harley Davidson FXSB Low Rider - Belt Base
1983 Harley Davidson FXWG Wide Glide Base
1984 Harley Davidson FLHS Electra Glide Sport Base
1984 Harley Davidson FLHTC Electra Glide Classic Base
1984 Harley Davidson FXE Super Glide Base
1984 Harley Davidson FXEF Fat Bob Base
1984 Harley Davidson FXSB Low Rider - Belt Base
1984 Harley Davidson FXWG Wide Glide Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1