NGK 3951
NGK part number 3951 is a spark plug in the Ignition system. This catalog matches it to 41 year-and-engine configurations from 1975 to 2026.
Verified fitment includes 2026 Honda Civic 1.5L L4 Turbocharged ; 2026 Honda Civic 2.0L L4 ELECTRIC/GAS ; 2026 Honda Civic 2.0L L4 Turbocharged ; 2025 Acura Integra 1.5L L4 Turbocharged ; 2025 Honda Accord 1.5L L4 Turbocharged , plus 36 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is NGK 3951?
NGK part number 3951 is a spark plug with published application data for 41 vehicle configurations from 1975 to 2026. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does NGK 3951 fit?
This catalog matches 3951 to 41 year-and-engine configurations from 1975 to 2026. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is NGK 3951 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. NGK 3951 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
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