yes andrew thats the one N10126,i have modded one of these to go in a CX pork chop as its exactly right outer diamiter but needs to have a bit choped off both sides,i have not tried it yet as i also bought a recond porky chop from stan platt,the only thing i can see is the rubber is not quite as firm as the original CX bush,but that might be just ageing
regards malcolm