Harley Davidson 620100 HD-37842-A Drive Gear Bearing/Seal Installer
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Harley‑Davidson 620100 / HD‑37842‑A Drive Gear Bearing & Seal Installer
The 620100 / HD‑37842‑A Drive Gear Bearing & Seal Installer is a precision service tool engineered to install drive gear bearings to the correct depth and properly seat the seal with the gear removed from the transmission. This installer ensures factory‑accurate alignment, prevents premature wear, and supports reliable transmission service on a wide range of Harley‑Davidson models.
Built as an exact aftermarket equivalent to Harley‑Davidson OEM HD‑37842‑A, this tool delivers the fit, function, and durability required by dealership technicians, independent shops, and experienced DIY mechanics.
✔ Key Features
- Installs drive gear bearings to the proper factory‑specified depth
- Seats the drive gear seal accurately with the gear removed from the transmission
- Equivalent to Harley‑Davidson OEM HD‑37842‑A
- Essential for transmission rebuilds, bearing replacement, and gear service
- Heavy‑duty construction for long‑term professional use
✔ Applications
- 1991–2006 Big Twins (except 2006 Dyna)
- Sportster 1991–2005
- Buell 1991–2005
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