NGK 4639
NGK part number 4639 is a spark plug in the Ignition system. This catalog matches it to 31 year-and-engine configurations from 1997 to 2025.
Verified fitment includes 2025 Honda Passport 3.5L V6 ; 2025 Honda Ridgeline 3.5L V6 ; 2024 Honda Passport 3.5L V6 ; 2024 Honda Ridgeline 3.5L V6 ; 2023 Honda Passport 3.5L V6 , plus 26 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is NGK 4639?
NGK part number 4639 is a spark plug with published application data for 31 vehicle configurations from 1997 to 2025. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does NGK 4639 fit?
This catalog matches 4639 to 31 year-and-engine configurations from 1997 to 2025. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is NGK 4639 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. NGK 4639 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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