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Related cross-references
Cross-reference numbers associated with J4J — including both OEM part numbers and aftermarket alternatives. Each entry links to its own compatibility and pricing page.
OE J4J fits vehicles from FORD and other compatible models listed below.
What part type is J4J?
OE J4J is an original equipment reference for a Spark Plug. It identifies the exact part specification used by the vehicle manufacturer.
How much does Spark Plug J4J cost?
Replacement parts for OE J4J cost between £2.99 and £5.99, depending on brand and specification.
Which brands make Spark Plug J4J?
NGK, DENSO all offer compatible replacements for OE J4J.
Is J4J original equipment or aftermarket?
OE J4J is an original equipment reference assigned by the vehicle manufacturer. The parts listed below are quality-matched aftermarket and OEM-equivalent replacements that meet the same specification.
What is OE number J4J?
OE (Original Equipment) number J4J is a manufacturer's reference code for Spark Plug used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 2 compatible aftermarket brands that match the same specification — often at a lower price than the original. All parts listed above are verified to match OE J4J.
