Are CAB A4+ Printheads Compatible with CAB A4.3+ Printheads?
Short Answer
In most cases, CAB A4+ printheads and CAB A4.3+ printheads can be interchangeable - but only if several key conditions are met.
The most important factors are print resolution (DPI), OEM part number (PN), and mechanical/electrical compatibility.
Why CAB A4+ and A4.3+ Printheads Are Often Considered Compatible
CAB A4+ and A4.3+ printers belong to the same product family and share a very similar mechanical and electronic design. Because of this, many aftermarket suppliers and spare parts distributors list A4+ and A4.3+ printheads as compatible or replaceable with each other, provided the specifications match.
In real-world sourcing, it is common to see printhead listings marked as:
"Compatible with CAB A4+ / A4.3+"
This indicates functional interchangeability rather than two completely different printhead designs.
Key Conditions for Compatibility
Before replacing or interchanging a CAB A4+ printhead with an A4.3+ printhead, you must verify the following:
1. Print Resolution (DPI)
CAB A4+ and A4.3+ printheads are available in multiple resolutions, such as 203 dpi, 300 dpi, and sometimes 600 dpi.
👉 The DPI must match the printer's required resolution.
A 300 dpi printhead cannot correctly replace a 203 dpi printhead, even if the model name looks compatible.
2. OEM Part Number (PN)
CAB assigns different part numbers to printheads based on:
Resolution
Production revision
Printer generation
For example, common CAB printhead PNs may include:
5954072 series (often 300 dpi)
5954085 / 5954089 series (depending on model and DPI)
If the PN required by your printer is different, always confirm cross-compatibility before installation.
3. Mechanical Installation & Connector
Although the print engines are similar, small differences may exist:
Mounting bracket design
Screw hole positions
Cable orientation or connector layout
Some replacement printheads are supplied with a mounting bracket to ensure drop-in installation across both A4+ and A4.3+ printers.
When A4+ and A4.3+ Printheads May NOT Be Compatible
The DPI does not match
The OEM PN is not listed as a supported replacement
The printer firmware requires a specific printhead revision
Mechanical mounting or connector layout differs on older printer versions
Practical Verification Checklist (Recommended)
Before purchasing:
Confirm your printer model (A4+ or A4.3+ exact version).
Check the required DPI of the original printhead.
Match or cross-reference the OEM part number (PN).
Verify connector type and mounting structure.
For bulk orders, always perform a sample installation and print test first.
Final Conclusion
CAB A4+ printheads and CAB A4.3+ printheads are generally compatible and interchangeable, as long as the DPI, OEM part number, and physical interface are the same.
Most incompatibility issues in the market are caused by resolution mismatch or incorrect part number selection, not by fundamental design differences.
If you are not sure which CAB A4+ or A4.3+ printhead is correct for your printer, send us your printer model or existing part number.
As a professional printhead supplier, we can:
Confirm exact compatibility
Recommend the correct OEM or replacement printhead
Support bulk orders with stable quality and competitive factory pricing
👉 Contact us now for fast technical confirmation and a quotation.
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