Sp spark plug AT3500/5000 12V – code: 1322428A – Webasto

Webasto Spare Part: glow pin 12V for Air Top 3500 / Air Top 5000

The SP glow pin AT3500/5000 12V (code 1322428A) is a spare part intended for heaters Webasto Air Top. It is the ignition pin (often referred to as Glow Pin), a component used in the heater's starting system to support the ignition phase.

Product features and details

Spare part identification

• Description: SP glow pin / Glow Pin
• Voltage: 12V
• Webasto Code: 1322428A
• SKU: WEB000000003

Indicated compatibility

Based on available information, the glow pin is indicated for the following heaters:

• Webasto Air Top 3500
• Webasto Air Top 5000

Typical applications (nautical and plant engineering)

The SP glow pin is a spare component used in maintenance interventions on air heaters of the Webasto Air Top series. In nautical and vehicle contexts, it may be required during operations such as:

• Scheduled maintenance of the heater, when performing checks and replacements of wear-prone components.
• Functional restoration in case of ignition difficulties or irregular starts (diagnosis and replacement of the component according to manufacturer procedures).
• Interventions on existing systems where it is necessary to maintain the original heater configuration, using consistent spare part codes.

In general, choosing the correct spare part is particularly important when the heater is installed in technical spaces with limited accessibility (typical on boats or in vans), where minimizing downtime and repeated interventions is preferred.

Advantages for those who purchase the correct spare part

Selecting a glow pin with correct code and voltage helps keep the heater compliant with the intended configuration and simplifies maintenance activities. In particular:

• Immediate identification: the code 1322428A allows alignment of orders, spare parts lists, and maintenance documentation.
• Consistency with the systemThe version 12V is designed for 12V systems; avoiding swaps with different voltage variants reduces errors during procurement.
• Targeted spare part: compatibility indication with Air Top 3500 and Air Top 5000, useful for those managing multiple units or spare parts in stock.
• Simpler technical management: a correctly coded spare part facilitates the work of installers and maintenance personnel, especially in professional contexts.

Usage and operational notes

Before purchase: quick check

• Check the system voltage: this glow plug is 12V.
• Check the heater model: compatibility indicated with Air Top 3500 and Air Top 5000.
• Compare the codeEnsure that the requested replacement is 1322428A (or that your removed replacement part shows the same reference, if readable).

During replacement

Replacing the glow plug is normally part of the heater's maintenance activities. In the absence of further technical data, a cautious approach is recommended:

• Follow the instructions of the manufacturer and the procedures provided for the specific model.
• Operate the system safely, with power disconnected according to good maintenance practices.
• If access to the heater is complex (nautical installations or in vans), consider the intervention of a qualified technician.

Notes on codes and ordering

To reduce the risk of error when ordering, it is useful to always provide:

• Spare part code: 1322428A
• Heater model: Air Top 3500 / Air Top 5000
• Voltage: 12V

This information also helps in warehouse management and traceability of maintenance interventions, especially in professional contexts.

FAQ – Frequently Asked Questions

Is this glow plug compatible with Webasto Air Top 3500?

Yes, the indicated compatibility includes Webasto Air Top 3500. However, check that your system is 12V and that the required code is 1322428A.

Is it also suitable for Webasto Air Top 5000?

Yes, the indicated compatibility also includes Webasto Air Top 5000, always in the 12V version with code 1322428A.

What is the spare part code?

The code shown for this SP glow plug (Glow Pin) 12V is 1322428A.

How can I avoid purchase errors?

Check the system voltage (12V), the heater model (Air Top 3500/5000), and compare the code 1322428A with the documentation or with the removed spare part, if readable.