| Diagram | Fig. 25 — OIL TANK · ref 5 |
| Subsystem | engine bottom |
| Listed in parts books | 1974 |
| Also fits (as replacement) | 1960–1974 · for 99-0048, PT104B |
DRAIN FIBER WASHER 3/8 - Replaces PT108B
A 3/8 inch fiber sealing washer used under the oil tank drain plug.
This is the fiber washer that seats under the drain plug on the oil tank, sealing it up so oil doesn't seep out around the threads when the plug is snugged down. It's a 3/8 inch washer, simple as they come, but it's the kind of small part that's easy to overlook until you've got a wet spot under the bike.
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Our records show this one carries forward from earlier factory numbers PT104B and 99-0048, and it's listed as a replacement for PT108B as well - so if your parts book or an old drain plug still shows one of those numbers, this is the current equivalent. Given how cheap it is to keep a few on hand and how often a drain plug washer gets crushed or torn on removal, it's worth having spares in the toolbox rather than reusing a tired one.
We don't have detailed catalog history on this part beyond the numbers it replaces, so if you're not sure it matches what's on your drain plug, bring the old one in or give us a call before you order.
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