| Also known as | 58-83953 |
| Listed in parts books | Not catalogued by year yet |
SPEEDOMETER GEAR BOX 3/4 AXLE BORE - 1.25:1 (15/12) RATIO - EMGO (150 mph gauge)
Speedometer drive gearbox with 3/4 in. axle bore and 1.25:1 (15/12) ratio, matched to a 150 mph EMGO speedo.
This is a speedometer drive gearbox, the small gear housing that sits on the drive side and takes drive off the wheel or gearbox output to spin the speedo cable. This one is built with a 3/4 in. axle bore and a 1.25:1 (15/12) internal gear ratio, matched up for a 150 mph speedometer head. The listing ties it to EMGO gauges specifically, so it's meant to work with that speedo rather than being a universal fit.
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The part carries the alias 58-83953 from an earlier numbering scheme, and our records show it was superseded by 60-0637 down the line, so if you're chasing this by an older or newer part number in your book, those are the same physical gearbox.
We don't have more detail on this one beyond what's on the tag. If you're not sure whether the 3/4 in. bore and 15/12 ratio match your speedo head and drive setup, call the shop and we'll confirm fitment before you order.
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