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TwinPower engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full TwinPower lineup with fast shipping and expert fitment support — order with confidence.
Ensure smooth and reliable power transfer with the Twin Power Clutch Hub. This high-quality reproduction is designed to replace the Original Equipment Manufacturer (OEM) part number 37740-84A, offering excellent performance and durability for your Harley-Davidson Big Twin motorcycle. Featuring steel splines and aluminum hub construction, this clutch hub is built to withstand the demands of the road.
Upgrade your drivetrain with confidence. Choose the Twin Power Clutch Hub for your Harley-Davidson from GGCRACING!
| Brand | TwinPower |
|---|---|
| Manufacturer part number | 489599 |
| GGC SKU | TWP489599 |
| UPC / GTIN | 887337397665 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 7.1 × 7 × 6 in |
|---|---|
| Shipping weight | 3.8 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 1984 | Harley-Davidson | FLHS Electra Glide Sport | Base |
| 1987-1989 | Harley-Davidson | FLHS Electra Glide Sport | Base |
| 1986-1989 | Harley-Davidson | FLHT Electra Glide Standard | Base |
| 1984-1989 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 1989 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 1986-1989 | Harley-Davidson | FLST Heritage Softail | Base |
| 1988-1989 | Harley-Davidson | FLSTC Heritage Softail Classic | Base |
| 1987-1989 | Harley-Davidson | FXLR Low Rider Custom | Base |
| 1984-1989 | Harley-Davidson | FXR Super Glide II | Base |
| 1985-1987 | Harley-Davidson | FXRC Low Rider Chrome | Base |
| 1986 | Harley-Davidson | FXRD Sport Glide Grand Touring | Base |
| 1984 | Harley-Davidson | FXRDG Disc Glide | Base |
| 1985-1989 | Harley-Davidson | FXRPF Police | Base |
| 1984-1989 | Harley-Davidson | FXRS Low Glide | Base |
| 1986-1989 | Harley-Davidson | FXRS-SP Low Rider Sport | Base |
| 1984-1989 | Harley-Davidson | FXRT Sport Glide | Base |
| 1984-1989 | Harley-Davidson | FXST Softail Standard | Base |
| 1986-1989 | Harley-Davidson | FXSTC Softail Custom | Base |
| 1988-1989 | Harley-Davidson | FXSTS Springer Softail | Base |
| 1984-1986 | Harley-Davidson | FXWG Wide Glide | Base |
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