I too have had this piece break, it has something to do with the sharp area at the end of the thread & the weight of the oil senders. I also second the idea of remotely mounting the adaptor on the strut tower. 2 weekends ago i put this combination together for the l series powered sunny i have. i bought a new sender from Super Cheap for $7. I then went to Volksbarn at Pendle Hill,on Joyce St near the railway station, & bought a brass fitting half the length of this "vdo" fitting for about $20. With both pieces in hand i went to a shop who's name i can't remember,but it's behind the Hungry Jacks on Abbotts rd at Seven Hills, I think it's on Foundry Road, & he made me up some braided line & the fittings i needed for the rest of the set up for less than $70, & it wasn't a short length of braided either. so for under a $100 i might have saved myself an expensive engine rebuild. I believe this is a bargain. I'm also going to be putting this set up in the sunny sedan with the a15 i'm
building at the moment, I just have to get the engine rebuilt after i found a cam bearing had turned & restricted the oil flow to the rocker gear. So new bearings & gaskets coming right up.