# Mercruiser 33813421

> All equivalents for the Mercruiser 33813421 spark plug: compatible references, technical specifications and where to buy.

## Technical information

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

## 14 equivalents

- [Champion V61](https://www.thesparktwin.com/en/champion/v61/)
- [Champion BL3](https://www.thesparktwin.com/en/champion/bl3/)
- [Denso ITF24](https://www.thesparktwin.com/en/denso/itf24/)
- [Motorcraft AF1](https://www.thesparktwin.com/en/motorcraft/af1/)
- [ACDelco MR41T](https://www.thesparktwin.com/en/acdelco/mr41t/)
- [Champion 263](https://www.thesparktwin.com/en/champion/263/)
- [Autolite 134](https://www.thesparktwin.com/en/autolite/134/)
- [ACDelco 438T](https://www.thesparktwin.com/en/acdelco/438t/)
- [Accel 263](https://www.thesparktwin.com/en/accel/263/)
- [Mercruiser 33670](https://www.thesparktwin.com/en/mercruiser/33670/)
- [Mercruiser 33-670](https://www.thesparktwin.com/en/mercruiser/33-670/)
- [Mercury 8134214](https://www.thesparktwin.com/en/mercury/8134214/)
- [Mercruiser 33-813421](https://www.thesparktwin.com/en/mercruiser/33-813421/)
- [Mercruiser 338134214](https://www.thesparktwin.com/en/mercruiser/338134214/)

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*Source : [Mercruiser 33813421](https://www.thesparktwin.com/en/mercruiser/33813421/) — TheSparkTwin*