TwinPower twp489621 - 90-93 Big Twin 9-Tooth Starter Pinion Gear

Twin Power™ starter pinion gears match 66T or 102T ring gears for 1990-2006 Big Twin starters.

• Hardened steel teeth withstand high starter loads without premature wear
• 9-tooth gears pair with 66-tooth ring gears; 10-tooth with 102-tooth
• Essential for starter rebuilds addressing stripped gear failures

The TwinPower twp489621 starter pinion gear is designed for 1990-2006 Big Twin starters and pairs with a 66-tooth ring gear. This 9-tooth gear is made with hardened steel teeth to help withstand high starter loads and resist premature wear.

It is suitable for starter rebuilds addressing stripped gear failures. Fitment data provided includes 1990 Harley-Davidson FLHS Electra Glide Sport, FLHTC Electra Glide Classic, FLHTCU Electra Glide Ultra Classic, FLST Heritage Softail, FLSTC Heritage Softail Classic, FLSTF Fat Boy, FXLR Low Rider Custom, FXRS-Conv Low Rider Sport Convertible, FXRT Sport Glide, and FXST Softail Standard.

Key Features & Performance Benefits

• Hardened steel teeth: Built to withstand high starter loads without premature wear.
• 9-tooth configuration: Designed to pair with 66-tooth ring gears.
• Starter rebuild application: Helps address stripped starter gear failures.
• Big Twin starter fitment: Intended for 1990-2006 Big Twin starters.

Key Product Specifications & Technical Data

• Brand: TwinPower
• Part number: twp489621
• Product type: Starter pinion gear
• Tooth count: 9
• Matching ring gear: 66 teeth
• Application: Big Twin starters
• Product quantity: 1
• Material detail: Hardened steel teeth

What's Included

One TwinPower 9-tooth starter pinion gear.

Fitments:
1990 Harley Davidson FLHS Electra Glide Sport Base
1990 Harley Davidson FLHT Electra Glide Standard Base
1990 Harley Davidson FLHTC Electra Glide Classic Base
1990 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
1990 Harley Davidson FLST Heritage Softail Base
1990 Harley Davidson FLSTC Heritage Softail Classic Base
1990 Harley Davidson FLSTF Fat Boy Base
1990 Harley Davidson FXLR Low Rider Custom Base
1990 Harley Davidson FXR Super Glide II Base
1990 Harley Davidson FXRS Low Glide Base
1990 Harley Davidson FXRS-Conv Low Rider Sport Convertible Base
1990 Harley Davidson FXRS-SP Low Rider Sport Base
1990 Harley Davidson FXRT Sport Glide Base
1990 Harley Davidson FXST Softail Standard Base
1990 Harley Davidson FXSTC Softail Custom Base
1990 Harley Davidson FXSTS Springer Softail Base
1991 Harley Davidson FLHS Electra Glide Sport Base
1991 Harley Davidson FLHT Electra Glide Standard Base
1991 Harley Davidson FLHTC Electra Glide Classic Base
1991 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
1991 Harley Davidson FLSTC Heritage Softail Classic Base
1991 Harley Davidson FLSTF Fat Boy Base
1991 Harley Davidson FXLR Low Rider Custom Base
1991 Harley Davidson FXR Super Glide II Base
1991 Harley Davidson FXRS Low Glide Base
1991 Harley Davidson FXRS-Conv Low Rider Sport Convertible Base
1991 Harley Davidson FXRS-SP Low Rider Sport Base
1991 Harley Davidson FXRT Sport Glide Base
1991 Harley Davidson FXST Softail Standard Base
1991 Harley Davidson FXSTC Softail Custom Base
1991 Harley Davidson FXSTS Springer Softail Base
1992 Harley Davidson FLHS Electra Glide Sport Base
1992 Harley Davidson FLHT Electra Glide Standard Base
1992 Harley Davidson FLHTC Electra Glide Classic Base
1992 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
1992 Harley Davidson FLSTC Heritage Softail Classic Base
1992 Harley Davidson FLSTF Fat Boy Base
1992 Harley Davidson FXLR Low Rider Custom Base
1992 Harley Davidson FXR Super Glide II Base
1992 Harley Davidson FXRS Low Glide Base
1992 Harley Davidson FXRS-Conv Low Rider Sport Convertible Base
1992 Harley Davidson FXRS-SP Low Rider Sport Base
1992 Harley Davidson FXRT Sport Glide Base
1992 Harley Davidson FXST Softail Standard Base
1992 Harley Davidson FXSTC Softail Custom Base
1992 Harley Davidson FXSTS Springer Softail Base
1993 Harley Davidson FLHS Electra Glide Sport Base
1993 Harley Davidson FLHT Electra Glide Standard Base
1993 Harley Davidson FLHTC Electra Glide Classic Base
1993 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
1993 Harley Davidson FLSTC Heritage Softail Classic Base
1993 Harley Davidson FLSTF Fat Boy Base
1993 Harley Davidson FLSTN Heritage Softail Nostalgia Base
1993 Harley Davidson FXDL Dyna Low Rider Base
1993 Harley Davidson FXDWG Dyna Wide Glide Base
1993 Harley Davidson FXLR Low Rider Custom Base
1993 Harley Davidson FXR Super Glide II Base
1993 Harley Davidson FXRS-Conv Low Rider Sport Convertible Base
1993 Harley Davidson FXRS-SP Low Rider Sport Base
1993 Harley Davidson FXST Softail Standard Base
1993 Harley Davidson FXSTC Softail Custom Base
1993 Harley Davidson FXSTS Springer Softail 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