DENSO 3445

DENSO part number 3445 is a spark plug in the Ignition system. This catalog matches it to 114 year-and-engine configurations from 1983 to 2025.

Verified fitment includes 2025 Ford F-150 5.0L V8 ; 2024 Ford F-150 5.0L V8 ; 2023 Ford F-150 5.0L V8 ; 2023 Ford Lobo 5.0L V8 ; 2022 Ford F-150 5.0L V8 , plus 109 other configurations. See every vehicle this part fits.

Manufacturer specifications
U-Groove ConventionalPre-Set Gap: 0.035"
Gap .035
Application data published for:
🇺🇸 US 🇨🇦 CA

Frequently Asked Questions

What is DENSO 3445?

DENSO part number 3445 is a spark plug with published application data for 114 vehicle configurations from 1983 to 2025. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.

Which vehicles does DENSO 3445 fit?

This catalog matches 3445 to 114 year-and-engine configurations from 1983 to 2025. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.

Is DENSO 3445 OEM or aftermarket?

What matters is the published application data for this part number, not the label on the box. DENSO 3445 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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