# Motorcraft SP439A

> All equivalents for the Motorcraft SP439A spark plug: compatible references, technical specifications and where to buy.

## Technical information

- **Thread:** 14 mm
- **Reach:** 17.5–20.0 mm
- **Heat range:** Medium
- **Gap:** 1.5mm
- **Resistor:** no
- **Seat:** Tapered
- **Torque:** fonte 10–20 N·m · alu 10–20 N·m — ou 180°–240° (½–⅔ tour)

## 15 equivalents

- [Tacti V91105070](https://www.thesparktwin.com/en/tacti/v91105070/)
- [Cadillac 12556183](https://www.thesparktwin.com/en/cadillac/12556183/)
- [Chevrolet 12556183](https://www.thesparktwin.com/en/chevrolet/12556183/)
- [Daewoo 12556183](https://www.thesparktwin.com/en/daewoo/12556183/)
- [General Motors 12556183](https://www.thesparktwin.com/en/general-motors/12556183/)
- [Cadillac 12561466](https://www.thesparktwin.com/en/cadillac/12561466/)
- [Chevrolet 12561466](https://www.thesparktwin.com/en/chevrolet/12561466/)
- [Daewoo 12561466](https://www.thesparktwin.com/en/daewoo/12561466/)
- [Cadillac 12571535](https://www.thesparktwin.com/en/cadillac/12571535/)
- [Chevrolet 12571535](https://www.thesparktwin.com/en/chevrolet/12571535/)
- [Daewoo 12571535](https://www.thesparktwin.com/en/daewoo/12571535/)
- [General Motors 12 556 183](https://www.thesparktwin.com/en/general-motors/12-556-183/)
- [General Motors 12 561 466](https://www.thesparktwin.com/en/general-motors/12-561-466/)
- [General Motors 12 571 535](https://www.thesparktwin.com/en/general-motors/12-571-535/)
- [Lexus 9009866113](https://www.thesparktwin.com/en/lexus/9009866113/)

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*Source : [Motorcraft SP439A](https://www.thesparktwin.com/en/motorcraft/sp439a/) — TheSparkTwin*