BOSCH Super Plus Spark Plugs WR7DC 7900 for Porsche Mercedes - 2 Pcs | eBay
Tiico Bosch WR7DC Spark Plug | Van Cafe
Spark plug Bosch WR7DC for 520/4+520i all years of manufacturing, you need 4 for 1 car and for 525+528 up to 08/1976, you need 6 for 1 car | Wallothesch
Bosch WR7DC Spark Plug , Pack of 1
BMW Spark Plug Bosch WR7DC+ - 12129062594
MERCEDES BENZ 65-74 BOSCH SPARK PLUG SET OF 6 WR7DC SUPER PLUS 7900 | eBay