Hi Randy. That looks like the original Volvo heater control valve design, half metal, half plastic. MTC sold the same design in the aftermarlet. The plastic in those ones got brittle with age and it was just a matter of time until the neck broke. The new ones from Volvo are all black plastic and look sturdy. The ProParts Sweden one available in the aftermarket looks almost identical to the new Volvo one. I've not had any problem with them. The vacuum nipple is a slightly different OD and is also at a different angle. Volvo has an adapter rubber elbow that's available to replace the original Volvo rubber sleeve. I got one and it didn't properly fit the ProParts one. I found by pulling off and turning the original one around it was a decent fit, but it was a tight bend at the bottom. I put a small piece of vinyl tubing over the tube as a sleeve so it wouldn't kink at the bend and used a drop of RTV on the hose and slid the nipple over it so it wouldn't accidentally pull out. I've done this twice now.



BTW. I now pack in my Volvo emergency kit a small assortment of PVC plumbing plugs to use plug the heater hoses, be it from a broken heater valve, a split heater hose (bottom of the lower bend can get gummy) or a leaking heater core. Along with that are a couple of ring clamps and a sharp serrated knife to cut the hoses square. A good minimum kit is two 5/8" and one 3/4" plug (fits best at the bend), all available from the likes of HDepot. 11/16" would be ideal to also have, but are not common to find. It's not a high pressure system so in a pinch you can live without using ring clamps if the serrated plug is an really snug fit.
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Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now