Andy,

That JL site looked promising at first, but all their "Original Equip." numbers are Bosch, not Vehicle numbers as I'd hoped. FWIW, the Volvo 3-wire sensor numbers are:—
Regina 3517394-7
Bosch 3501753-2

Here is what I found there:—
JustLambda's Titania 3-wire universal 11014T18 (using JL x-ref, under NTK) crosses to NTKD5F, and JL's own:—
11126 VW
11127 VW
11128 Citroen
And the price listed is for 11011T18 is = to $141.65 at today's rate!

Going to JL's All Parts listing, those three JL numbers above are shown as 3-wire Titanias, BUT there are No Volvos anywhere on that "All Parts" list.

I'm afraid that nothing on the JL site suggests that a true Zirc/Titania "Universal" sensor exists.

And here's another bit I pulled from an NTK tech paper:—
"At this point, the person selecting the correct oxygen sensor replacement must be reminded that should a vehicle be using the circuitry in the ECU/ECM for atitania oxygen sensor, care must be taken that the ... zirconia sensor, is NOT accidentally installed in the vehicle. Obviously, these two are definitely NOT interchangeable! "

--
Bruce Young,
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.