NGK B5HS / 4210 Standard Spark Plug Replaces W8AC L86C OE037 W16FS-U ( 4210 ) This is the workhorse, the plug that is at the heart of smooth-running engines around the world. OEM quality Triple-gasket sealing process Consistent performance Plug of choice in millions of vehicles BOX DIMENSIONS Height (mm): 85 Width (mm): 24 Length (mm): 22 If you are unsure as to whether this is the correct part for your vehicle, please don't hesitate to contact us. Alternatively please use the cross reference table above.