Genuine NGK CR9E spark plug – supplied as a single plug (1 plug). CR9E cold heat range – ideal for high-revving and high-output 4-stroke engines. Part Number: CR9E. Derbi: 50 Black Mini 2003 onwards, 50 Dirt Boy / Dirt Kid 2003 onwards, 125 Rambla / Terra / Mulhacén / GPR 4T 2007 onwards.
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