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Part number 334358 in the original Ferrari catalog: where it sits in the assembly and what the factory calls it.
Champion Spark Plug for 1985-1991 Ferrari Testarossa. Title identifies this as a Champion spark plug fitment listing for Ferrari Testarossa model years 1985, 1986, 1987, 1988, 1989, 1990, and 1991. The description also includes listed part numbers and brand references, including KYB, Monroe, Gabriel, Bilstein, KONI, Tokico, OEM, TEIN, and H&R, along with manufacturer part numbers 334470, 334471, 334358, 334359, and MPN 9AJDM20210831TF204A. Country/Region of manufacture is Japan.
This OEM diagram is the property of Ferrari or its respective rights holder. It is provided free of charge for parts identification, maintenance, and repair purposes, consistent with the principles of Fair Use (17 U.S.C. § 107) and Right to Repair. Legal Disclaimer