Originally Posted by 68Cadillac
021 is one of the two rings that separate the high pressure side from the low pressure side in the pump. It worked in mine. We're all in uncharted waters here so you'll just have to test it.
I measured where the 021 ring goes with a micrometer
But if you wanted to go for a thicker o-ring to test instead of the -021 AS568A Dash Number 119
would be what you'd want to order.
Let us all know how it goes either way.
Thanks for your response. In the end, I went with Dash 021 even though I bought the closest matching ring from the shop. As close as it gets, the closest matching ring I bought wouldn't fit nicely so I thought I would just go with Dash 021 ring.
I have not installed the power steering pump yet (I bought it used as spare) and I will update if I have any further findings.
Thank you once again.