The Zebra GK420d is a direct thermal printer - it prints on heat-sensitive labels and never needs a ribbon. Any 4-inch-or-narrower direct thermal label with a 1-inch core works. These are the genuine Zebra labels we ship same-day for GK420d fleets, as an authorized Zebra reseller.
Top direct thermal labels for the GK420d
| Part number | Description | Price/case |
|---|---|---|
| 10000301 | 4x6 in - shipping labels, 4 rolls/case | $70.23 |
| 10000290 | 4x6 in - coated all-temp, 4 rolls/case | $100.17 |
| 10026373 | 4x3 in - product/location labels | $189.99 |
| LD-R3AK5B | 4x4 in - drum & container labels, 36 rolls/case | $310.30 |
| LD-R2AQ5J | 4x2 in - address & barcode labels, 36 rolls/case | $291.24 |
| 10010030 | 3x3 in - coated all-temp, 6 rolls/case | $108.65 |
| 10026378 | 3x2 in - value uncoated, small-batch | $59.61 |
| 10000295 | 3x2 in - coated all-temp, 6 rolls/case | $169.49 |
Need a different size or material (polypropylene, removable adhesive, fanfold)? The supplies selector tool lists every GK420d-compatible option, or browse all Zebra labels.
GK420d supplies FAQ
Does the GK420d use ribbons?
No. The GK420d is direct-thermal only. If you were sold "GK420d ribbons," they are for the GK420t (thermal transfer model).
What is the largest label it prints?
4.09 in wide, standard 1-inch core, up to a 5-inch roll diameter - 4x6 shipping labels are its bread and butter.
My GK420d is dying - what replaces it?
The ZD421d is the direct upgrade: same media, same 4-inch width, modern connectivity. Check your printer with the Zebra warranty lookup.
Ordering for multiple locations or a full fleet? We quote case and pallet pricing daily.
Call 1-877-437-3028