Equivalents for the Marelli spark plug UC21A
The Marelli UC21A spark plug featuring heat range hot, reach 15.2–19.0 mm. 136 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
Technical information Marelli UC21A spark plug
- Resistor
- no
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What can replace a Marelli UC21A spark plug?
The Marelli UC21A is interchangeable with: Bosch CH217, Champion W597, Denso G008, Bosch GLP009, Champion GX94, Champion SX94. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Marelli UC21A?
Reach 15.2–19.0 mm, Heat range Hot, Resistor no, Seat Flat (gasket)
Cross-references and specifications are provided for guidance only. The wrench size can vary by brand, and some data is inferred from the plug code or an equivalent reference. Always check the vehicle manufacturer's recommendation before buying and fitting.