The selected Navara D22 2.5L YD25DDTi pump and Navara D23 RX 2.3L YS23DDT pump are different assemblies. The D22 example uses reference 49110-VK93A and a V-belt pulley. The D23 example uses 49110-4JA0B and a multi-rib pulley. A shared Navara badge does not make either one a substitute for the other.
The harder problem is that an online title can look convincing even when the detailed part information describes something else. This guide shows how to compare the engine, reference and actual photographs together, using the two specific Australian applications linked below.
First identify which Navara is in front of you
Record the VIN, series, engine code and build month before searching. Keep D22, D40 and D23 separate. For the examples here, the D22 is the stated 2.5L YD25DDTi application, while the D23 is the stated RX dual-cab 2.3L YS23DDT single-turbo application.
Do not turn an engine size or a broad year range into a complete match. The product pages below use deliberately specific build scopes. Other engines, body variants or later D23 builds require their own check against the original reference and vehicle catalogue.
Compare the actual drive and connections
The D22 pump’s actual photographs show the black V-belt pulley, a compact aluminium housing and a short capped inlet pipe. The selected D23 pump has a multi-rib pulley and a different hydraulic fitting arrangement. Compare those features with the original, with both units viewed from the same direction.
A groove difference is a reason to stop and resolve the match, not a reason to plan a pulley swap onto an unconfirmed pump. Mounting points, drive alignment and hydraulic connections also need to agree. Neither a silver casting nor a similar rear cover proves interchangeability.
| Selection | Reference and pictured drive | Listed Australian scope |
|---|---|---|
| Navara D22 2.5L diesel pump | 49110-VK93A; V-belt pulley fitted | Listed YD25DDTi application, 02/2008–08/2015. Confirm the original reference and configuration. |
| Navara D23 RX single-turbo 2.3L diesel pump | 49110-4JA0B; multi-rib pulley fitted | Listed RX dual-cab YS23DDT application, 05/2015–12/2020. Other variants need a separate check. |
What to do when the title and fitment table disagree
During the source checks for these applications, one marketplace offer used a D23 reference in its title but showed older Pathfinder references and a Pathfinder R50 VG33 compatibility table in the detailed information. That offer was excluded from the comparison. The conflicting fields did not establish that the older pump could fit a D23.
Use the same approach when shopping: stop at a contradiction. A title, an “also fits” list and an item-specific reference should tell a consistent story. If they do not, ask for the exact assembly identity and current photographs. Do not choose whichever field happens to match your vehicle and ignore the rest.
A claimed supersession also needs evidence. A number that differs by one character is not automatically a later version of the original. Keep an unresolved reference out of the order until the relationship has been confirmed for the actual vehicle.
Which photographs are useful?
- The original reference or label, clearly readable.
- A drive-end view showing the pulley grooves.
- A side view showing the inlet pipe and pressure connection.
- The mounting arrangement and rear housing, if safely accessible.
- Any actual electrical fitting, without mistaking a protective hydraulic-port cap for a connector.
If the pump is already removed, photograph both ends and the mounting face. If it is still installed, send the accessible details and vehicle information first; there is no need to dismantle the vehicle solely to obtain a comparison photograph. Mention any engine conversion or non-original bracket arrangement.
A confirmed part number does not diagnose the steering complaint
This comparison identifies replacement configurations. It does not establish that a pump is responsible for heavy steering, noise or fluid loss. The workshop should assess the complete system before ordering and use the vehicle-specific fluid, sealing and service instructions for installation.
If assistance changes suddenly or the steering becomes difficult to control, arrange professional assessment rather than continuing to drive as a test. There is no universal pressure setting, fluid specification or bleeding sequence supplied by this comparison.
Reference checks and next steps
The genuine Nissan catalogue identifies 49110-4JA0B as a power-steering pump assembly associated with Navara YS23 applications. The independent Australian Navlife NP300 pump application provides the more detailed build and engine distinctions used in the D23 comparison. The linked PFA product pages retain their own narrower scope and actual assembly photographs.
Open the relevant product link above to check the exact inclusions and current availability. If the number, pulley or connection arrangement differs from the original, send the VIN, build date and photographs for a fitment check before ordering.
Prepared from catalogue and source-photo checks, not a claim of a workshop road test. Featured image: original AI-generated editorial illustration, not a photograph of a particular vehicle or replacement pump. Application details checked on 3 November 2026.