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Description
The Genuine Zebra Printhead [105934-037] is a 203 dpi direct thermal replacement assembly for compatible GK420d and GX420d printers. It is a service part, not a complete label printer.
This is not the printhead for GK420T or GX420T. Zebra lists a different assembly for those thermal transfer models. Match the complete printer model, hardware revision and service part number before ordering.
- ✔ Genuine Zebra replacement part
- ✔ Exact MPN 105934-037
- ✔ 203 dpi resolution
- ✔ Direct thermal printing assembly
- ✔ Listed for compatible GK420d printers
- ✔ Listed for compatible GX420d printers
- ✔ Intended for printer maintenance and repair
- ✔ Supplied as a printhead, not a printer
Value for Your Business
A correctly diagnosed printhead fault may be repaired without replacing the whole printer. Check media, cleaning, settings and connection issues before ordering a replacement part; a new printhead does not resolve every print quality problem.
Key Features
- Replacement assembly for the specified direct thermal platforms.
- Maintains the supported 203 dpi configuration.
- Part number distinguishes it from the thermal transfer and 300 dpi assemblies.
- Suitable for installation following the relevant Zebra service procedure.
Compatibility
Zebra lists 105934-037 for GK420d and GX420d at 203 dpi. Its parts table lists 105934-038 for GK420t and GX420t, and 105934-039 for GX430t at 300 dpi. These part numbers are not interchangeable simply because the printer names are similar.
Confirm the existing assembly and printer revision. Disconnect power, allow the printhead to cool and follow the service instructions, including electrostatic handling precautions. Professional installation is recommended.
Considering a Complete Printer Replacement?
Compare the ZD621D direct thermal printer, the ZD421T thermal transfer printer or the used GK420T for your application. These are complete printer alternatives, not models that use this replacement printhead.
Product Specifications
| Brand and MPN | Zebra; 105934-037 |
|---|---|
| Condition | New, genuine Zebra |
| Product type | Replacement printhead assembly |
| Resolution | 203 dpi |
| Printing method | Direct thermal |
| Listed compatible models | GK420d and GX420d; confirm revision and service documentation |
| Not the corresponding part for | GK420t, GX420t or GX430t |
Ideal For
Correctly diagnosed repairs to compatible Zebra GK420d and GX420d direct thermal printers.
What's Included?
One genuine Zebra 105934-037 printhead assembly. Printer, printing media and installation service are not included.
Why Buy From OzToner
Australian owned business with local customer support and experience in printers, supplies and business equipment.
Frequently Asked Questions
Will this fit a GK420T?
No. The thermal transfer model uses a different printhead part number.
Is it a 300 dpi upgrade?
No. This is a 203 dpi direct thermal replacement assembly.
Is a printer included?
No. This listing is for the printhead only.
Will replacing the head fix every faded label?
No. Media, cleaning, settings and other faults must also be checked.
How do I confirm compatibility?
Match the complete model, revision and existing assembly against Zebra service documentation.
Is installation included?
No. Professional installation following the correct service procedure is recommended.
Last Updated: 07 October 2026
Last Pricing Update: 07 October 2026. Listing reviewed; selling price unchanged.