Equivalents for the Delphi spark plug HDS420
The Delphi HDS420 spark plug — heat range very hot, reach 15.2–19.0 mm. 113 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
Technical information Delphi HDS420 spark plug
- Resistor
- no
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What can replace a Delphi HDS420 spark plug?
The Delphi HDS420 is interchangeable with: Bosch GLP274, Champion CH224, Denso DG170, Bosch GPK-901, Champion CH234, Champion GX151. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Delphi HDS420?
Reach 15.2–19.0 mm, Heat range Very 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.