SJ-H or SJ-G? Match Mitsubishi Selfjector Spare Parts

Blog | October 30th, 2026

Mitsubishi Selfjectors

Mitsubishi Selfjector marine separator equipment

Wildon Engineering supplies Mitsubishi selfjector spare parts across Australia, with accurate SJ-H and SJ-G model matching for planned maintenance support.

Ordering Mitsubishi Selfjector spare parts from a partial model reference or visual comparison may result in the wrong component being supplied. Mitsubishi identifies the SJ-H and SJ-G as separate Selfjector product series, even where model numbers appear similar. Checking the complete equipment and part details before ordering can reduce delays during planned maintenance.

How Do You Match Mitsubishi Selfjector Spare Parts to SJ-H or SJ-G?

Start with the complete designation shown on the separator rather than a shortened reference such as “SJ30”. The SJ-H or SJ-G suffix matters because it identifies the Selfjector product series, but the available public information does not establish that parts are interchangeable between them.

Provide the supplier with as much identifying information as possible:

  • Complete model: Record the full model designation, including the series suffix.
  • Serial number: Include the equipment serial number when it is visible and available.
  • Part number: Check the required component against the applicable spare-parts catalogue for that unit.
  • Nameplate image: Send a clear photograph showing the equipment details.
  • Part markings: Photograph any numbers or markings on the existing component.
  • Quantity: State whether individual parts or a service set is required.

Do not approve a substitute because it looks similar or is associated with a model carrying the same number. Compatibility should be confirmed against the applicable parts information before an order proceeds.

What Separates the SJ-H Series From the SJ-G Series?

Mitsubishi lists the SJ-H and SJ-G as separate Selfjector ranges. Wildon Engineering’s published information identifies the Mitsubishi Selfjector SJ-H, also called the Hercules series, as the newer version, with improved particle removal, a more compact design and higher output than previous models.

The SJ-H range includes standard H, H-HIDENS or HH, and SUPER HIDENS versions. Their published equipment arrangements differ, including aspects of automatic control, monitoring and separated-water discharge, so the exact SJ-H version should also be identified when requesting related Mitsubishi Selfjector spare parts.

What Should You Confirm Before Ordering Selfjector Parts?

Check the equipment details before dismantling begins where possible. Early identification allows time for the supplier to verify the required item and its availability before the planned service date.

Before placing the order, confirm:

  • The complete SJ-H or SJ-G designation
  • The serial number, where available
  • The relevant part number
  • The installed SJ-H version or equipment configuration
  • The quantity and scope of the planned service
  • The delivery location and required date

The Australian Maritime Safety Authority states that, for ships subject to the International Safety Management Code, maintenance inspections, corrective actions and records are required. AMSA also expects operators to anticipate supply-chain challenges and make provision for obtaining spare parts for equipment whose failure could create hazardous situations.

Source Mitsubishi Selfjector Spare Parts Through Wildon Engineering

Wildon Engineering, trading as Japan Marine Engineering, supplies genuine Mitsubishi Selfjector spare parts in Australia and New Zealand. Providing complete equipment and component details allows the required part to be checked before an order proceeds. This careful approach supports more efficient maintenance planning and reliable separator operation.

Contact us for assistance identifying and ordering the correct parts for your Mitsubishi Selfjector.

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