Equivalents for the Hidria spark plug H1821
The Hidria H1821 spark plug featuring reach 15.2–19.0 mm, heat range medium. Compare its 185 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.
Technical information Hidria H1821 spark plug
- Resistor
- no
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What can replace a Hidria H1821 spark plug?
The Hidria H1821 is interchangeable with: Bosch CH216, Champion W420, Denso G111, Bosch GLP041, Bosch XCH512, Champion CH90. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Hidria H1821?
Reach 15.2–19.0 mm, Heat range Medium, 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.