---
Title: Spark Plug HELLA U2720423
Description: Part number: 8EH 358 238-121

Simplified part number: 8EH358238121

OEM numbers (Original Equipment Manufacturer):

AUDI 04C 905 606 (04C905606)
AUDI 04C 905 606 A (04C905606A)
SEAT 04C 905 606 (04C905606)
SEAT 04C 905 606 A (04C905606A)
SKODA 04C 905 606 (04C905606)
SKODA 04C 905 606 A (04C905606A)
VW 04C 905 606 (04C905606)
VW 04C 905 606 A (04C905606A)
Language: en-IE
Last updated: 2026-06-11
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---

# Spark Plug HELLA U2720423

Breadcrumb: [Spark Plug HELLA U2720423](https://motorparts.ie/spark-plug-hella-u2720423.md)



## Product Info

- **Brand**: HELLA
- **EAN**: 4082300981995
- **Warranty**: 12 Months
- **Price**: 3.65 EUR
- **Manufacturer's Suggested Retail Price**: C=EUR&A=3.29&Z=4.05&VAT=0.76&VATRATE=23

## Parameters:

- Spanner Size: HEX16
- Thread Length: 21.5 mm
- Electrode Gap: 0.95 mm
- Tightening Torque: 20 Nm
- Spark Plug: Iridium Middle Electrode
- Thread Size: M12X1,25
- Spark Plug: Connector Type SAE
- Spark Plug: 1 - Earthed Electrode
- Spark Plug: with gasket seat
- Assy./disassy. by qualified personnel required!: 

## Images:

1. [Image 1: Spark Plug HELLA U2720423](https://digital-assets.tecalliance.services/images/1600/fb8584661a6c62587bd0b4f56571864920ad2fd1.jpg)
2. [Image 2: Spark Plug HELLA U2720423](https://digital-assets.tecalliance.services/images/1600/35475502aa6dd8a979c76660d9f99f76368f802c.jpg)