# Delphi 33521

> All equivalents for the Delphi 33521 spark plug: compatible references, technical specifications and where to buy.

## Technical information

- **Thread:** 14 mm
- **Reach:** 19.0 mm
- **Heat range:** Very hot
- **Gap:** 1.5mm
- **Resistor:** yes
- **Seat:** Flat (gasket)
- **Torque:** fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)

## 8 equivalents

- [Champion RC12YC6](https://www.thesparktwin.com/en/champion/rc12yc6/)
- [Autolite A3926](https://www.thesparktwin.com/en/autolite/a3926/)
- [Motorcraft AGSP62C](https://www.thesparktwin.com/en/motorcraft/agsp62c/)
- [Motorcraft AGSP52CF6](https://www.thesparktwin.com/en/motorcraft/agsp52cf6/)
- [Mopar SP0RC12YC5](https://www.thesparktwin.com/en/mopar/sp0rc12yc5/)
- [Autolite 3926](https://www.thesparktwin.com/en/autolite/3926/)
- [Autolite 5184](https://www.thesparktwin.com/en/autolite/5184/)
- [Motorcraft 624](https://www.thesparktwin.com/en/motorcraft/624/)

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*Source : [Delphi 33521](https://www.thesparktwin.com/en/delphi/33521/) — TheSparkTwin*