Oil cooler sealing ring on 1989 type 89 coupe

[rob]

  Hi Gang,

   Just wondering if someone, perhaps with an ETKA can help me.  The patient is an 89 type 89/B3 coupe with 3A engine. It has an oil cooler sandwiched between the oil filter cartridge and the mounting on the block, It's blown the sealing ring between the cooler and block and I'm trying to establish the part number and, to be honest whether I can get away with using a sealing ring from a filter cartridge itself as it looks similar in dimension.

  Any suggestions,

 Thanks Rob.