# Bosch 4021

> Toate echivalențele pentru bujia Bosch 4021: referințe compatibile, specificații tehnice și de unde poți cumpăra.

## Informații tehnice

- **Filet:** 14 mm
- **Lungimea filetului:** 18.5–21.5 mm
- **Indice termic:** Foarte cald
- **Rezistor:** yes
- **Scaun de etanșare:** Plat (cu garnitură)
- **Cuplu de strângere:** fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)

## 11 echivalențe

- [Bosch WR9DP4](https://www.thesparktwin.com/ro/bosch/wr9dp4/)
- [Bosch WR9LP4](https://www.thesparktwin.com/ro/bosch/wr9lp4/)
- [Bosch WR9DPX4](https://www.thesparktwin.com/ro/bosch/wr9dpx4/)
- [Autolite AP66](https://www.thesparktwin.com/ro/autolite/ap66/)
- [Splitfire PP006F](https://www.thesparktwin.com/ro/splitfire/pp006f/)
- [Bosch 4120](https://www.thesparktwin.com/ro/bosch/4120/)
- [Bosch 4121](https://www.thesparktwin.com/ro/bosch/4121/)
- [Bosch 4137](https://www.thesparktwin.com/ro/bosch/4137/)
- [Bosch 4237](https://www.thesparktwin.com/ro/bosch/4237/)
- [Champion 3405](https://www.thesparktwin.com/ro/champion/3405/)
- [Denso 3230](https://www.thesparktwin.com/ro/denso/3230/)

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*Source : [Bosch 4021](https://www.thesparktwin.com/ro/bosch/4021/) — TheSparkTwin*