Spark Plug, Bosch WR8DC - 2002, E21 323i, E12 530i, E24 630/633CSi, E23 733i/745i

This part is listed by BMW as BMW part number 12121276283 and Bosch WR8DC and is described as  the OEM spark plug for US-model 2002 (non Tii), E12 530i, E24 630CSi/633CSi, and E23 733i. Also used on Euro models E21 323i, E30 325e/325i, E28 535i, and E23 745i.

This is Bosch WR8DC, which is different than the W8LCR used for the US market. Both are copper-core spark plugs but the LCR has a deeper electrode projection which may interfere with higher-compression pistons found in Euro models. It's important not to mix plugs and pistons!

Note the latest Bosch design uses a nickel-yttrium alloy and with platinum electrode tip.

Sold per plug.

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