| Also known as | D3556 |
| Diagram | Fig. 11 — GEARBOX SHAFTS AND GEARS · ref 26 |
| Subsystem | gearbox |
| Listed in parts books | 1971–1972 |
BEARING - 4 SPEED GEARBOX HIGH GEAR (Replaces 04-0098, 49-00053, 57-0048, 57-0448,68-0023)
Mainshaft high gear bearing for the 4-speed gearbox, listed as the current replacement for several older factory numbers.
This is the bearing that supports the high gear (mainshaft) in the 4-speed gearbox, sitting inside the gearbox inner cover assembly. It's one of those parts that has gone through several factory number changes over the years - the catalog shows it as a replacement for a string of earlier numbers, so if your parts book or an old invoice lists 04-0098, 49-00053, 57-0048, 57-0448, or 68-0023, you're looking at the same physical bearing under this current number.
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It shows up in the gearbox inner cover and selectors section of the parts books, which is where you'd expect a mainshaft bearing to live - it's not something you get to without splitting the case open. Given how many old numbers feed into this one part, it's worth double-checking which bearing your gearbox actually needs before ordering, since gearbox internals changed across the unit-construction years.
The alias D3556 is just another catalog reference for the same part, so don't let that number throw you if you see it listed separately somewhere.
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