I ordered new plugs from Nappervile using part 003 159 67 03 26 (this was printed on my last batch of F8DC4 plugs I ordered). They sent me plugs that had 14F-8DU4 printed on them. When I inquired, they said that the part number I used to order (003 159 67 03 26) was superseded by 003 159 68 03 and that's now the correct plug for my 119.975. They offered to let me return them but if it's correct I guess there's no reason to. Anyone else try to use these plugs? Thanks.