Equivalents for the General Motors spark plug 3646409
The General Motors 3646409 spark plug with reach 15.2–19.0 mm, heat range medium. Compare its 108 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.
Technical information General Motors 3646409 spark plug
- Resistor
- no
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What can replace a General Motors 3646409 spark plug?
The General Motors 3646409 is interchangeable with: Bosch GLP230, Champion CH719, Denso DG603, Champion CH803, Champion CH803002, Champion CH803/002. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the General Motors 3646409?
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.