Denso 22641aa510
 

Cheapset place to buy a replacement?
Thanks

Don't have a Denso catalogue. What is it???

As with all previous version A/F sensors it has, until sufficient demand dictates, been cheaper to import, usually from the States.

However it can be advantageous to purchase from the Continent.

A good supplier is

https://www.originparts.de/

Only 19% VAT and no import charges etc.

Always check you have the correct weight showing for zone 2 deliveries as €29 +vat is a bit steep

Should work out about € 250 (including the paypal or other surcharge) £215

Subaru UK price as you quoted £314 I believe ( and was that plus VAT?)