On Sat, 3 Apr 2021 10:11:52 -1000, John Keiser
wrote:

On 4/3/2021 6:37 AM, micky wrote:
I know it's not the same vendor -- Wait, it is the SAME vendor -- so how
is it that on ebay there is one Denso ignition pack for a 2005 3.3L
Toyota engine for $70, and a 6-pack for $158?

https://www.ebay.com/itm/1-PC-OEM-DE...6/392934898333

https://www.ebay.com/itm/6-Pack-OEM-...E/233707357463

Your links shows $32 each.
Denso is a quality brand at a good price point.
[I go Denso although I have found generic Chinese equally useful.]
If you are replacing a COP in the rear bank which requires removal of
the intake manifold, replace all 3.
Denso is Toyota OEM - I believe majority or wholly owned by Toyota.