| Also known as | D2133 |
| Diagram | Fig. 26 — ELECTRICAL EQUIPMENT (PART 2) AND INSTRUMENTS · ref 22 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1971, 1973 |
OIL PRESS SWITCH,TAPERED 1968 ONLY! (1/8 NPT)
Tapered-thread (1/8 NPT) oil pressure warning switch for the timing cover, catalog number 60-2133.
This is the oil pressure switch for the 1968 model year, the tapered-thread version, part number 60-2133 (also seen listed as D2133 in older references). It threads into the timing cover area and closes a circuit to trip the oil pressure warning light on the instrument panel when pressure drops too low, letting you know something's wrong with lubrication before it turns into a bigger problem.
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The key thing with this switch is the thread type. It uses tapered pipe threads (1/8 NPT), which is different from the straight-thread switches used on later machines. Tapered threads seal on their own as they're run in, typically with a bit of thread sealant like tape or anti-seize on them, rather than relying on a washer or O-ring the way a straight-thread switch does. If your timing cover was drilled and tapped for a straight-thread switch, this one won't seal right, so it pays to check what's already threaded into your cover before ordering.
Our records show this part number showing up in catalogs across model years running from 1969 into 1973, even though the description flags it as being for 1968 specifically. If you're not sure which switch your cover takes, give us a call and we'll help you sort it out before you buy.
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