# Mighty RF42

> All equivalents for the Mighty RF42 spark plug: compatible references, technical specifications and where to buy.

## Technical information

- **Thread:** 14 mm
- **Reach:** 11.2 mm
- **Heat range:** Very hot
- **Torque:** fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)

## 10 equivalents

- [Autolite A25](https://www.thesparktwin.com/en/autolite/a25/)
- [Motorcraft SP-450](https://www.thesparktwin.com/en/motorcraft/sp-450/)
- [Motorcraft ASF42CF4](https://www.thesparktwin.com/en/motorcraft/asf42cf4/)
- [Splitfire CC002E](https://www.thesparktwin.com/en/splitfire/cc002e/)
- [Bluelightning BL642](https://www.thesparktwin.com/en/bluelightning/bl642/)
- [Mopar P-55-7P](https://www.thesparktwin.com/en/mopar/p-55-7p/)
- [Mopar P-55-7PR](https://www.thesparktwin.com/en/mopar/p-55-7pr/)
- [Autolite 25](https://www.thesparktwin.com/en/autolite/25/)
- [Motorcraft 450](https://www.thesparktwin.com/en/motorcraft/450/)
- [Motorcraft 856](https://www.thesparktwin.com/en/motorcraft/856/)

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*Source : [Mighty RF42](https://www.thesparktwin.com/en/mighty/rf42/) — TheSparkTwin*