![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 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](https://www.wallothnesch.com/media/catalog/product/cache/4e6f5694cbb15d571ce8c8f9b6100e93/1/2/12129062594.jpg)
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 spark plug type WR7DC 99917018990 92809460203 99917014190 99917015690 - PC32152 - Mecatechnic.com BOSCH spark plug type WR7DC 99917018990 92809460203 99917014190 99917015690 - PC32152 - Mecatechnic.com](https://www.mecatechnic.com/img/photos/zoom/PC32152.jpg)
BOSCH spark plug type WR7DC 99917018990 92809460203 99917014190 99917015690 - PC32152 - Mecatechnic.com
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Amazon.com: PK4 TORCH F6RTC 131-039 Spark Plug Replace for NGK BPR6ES Spark Plug,for Bosch WR6DC WR7DC Spark Plug,for Champion RN9YC RN10YC Spark Plug,for Denso W20EPR-U Spark Plug,for MTD 951-10292/751-10292,OEM : Automotive
![Amazon.com: TORCH F6RTC 131-039 Spark Plug Replace for NGK BPR6ES Spark Plug,for Bosch WR6DC WR7DC Spark Plug,for Champion RN9YC RN10YC Spark Plug,for Denso W20EPR-U Spark Plug,for MTD 951-10292/751-10292, OEM,ea : Automotive Amazon.com: TORCH F6RTC 131-039 Spark Plug Replace for NGK BPR6ES Spark Plug,for Bosch WR6DC WR7DC Spark Plug,for Champion RN9YC RN10YC Spark Plug,for Denso W20EPR-U Spark Plug,for MTD 951-10292/751-10292, OEM,ea : Automotive](https://m.media-amazon.com/images/I/61b-ZzmNXAL.jpg)