| Diagram | Fig. 10 — TIMING COVER AND CONTACT BREAKER · ref 23 |
| Subsystem | engine bottom |
| Listed in parts books | 1974, 1976–1980, 1983, 1985 |
Oil pressure switch 1 PS 5330/103
Oil pressure warning light switch with straight threads, threads into the timing cover to trigger the dash warning light on low oil pressure.
This is the oil pressure switch, part number 60-3719, listed in the catalog as PS 5330/103. It shows up in the timing cover area of the engine, where it monitors oil pressure and lets the warning light on the instrument panel tell you if pressure has dropped too low. The switch threads into the timing cover or crankcase and completes a circuit to ground when pressure falls, lighting the idiot light on the dash.
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Catalog appearances for this part run from the mid '70s into 1980, so it's the later-style switch used across that stretch of production. If you're replacing one, take a look at the threads before you order — this switch uses straight threads and seals with an o-ring, copper washer, or crush washer, not tapered threads sealed with tape or sealant. Mixing up the two styles is the most common mistake we see at the counter.
If your bike came with the earlier tapered-thread switch, that's a different part number, and you'll want to match what's actually in your timing cover rather than what year your bike happens to be.
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