OEX Alternator 12V 20A Kokusan Denki Style KXA9906

The OEX Alternator KXA9906 is a new 12V, 20A unit made in Kokusan Denki style, with an internal regulator and a permanent magnet design. It is listed as a single leg alternator with a 15mm mount leg thickness, 8mm adjusting hole diameter and 11mm pivot hole diameter, so it is important to compare the mounting points against the unit being replaced before ordering.

This alternator is supplied as an each item and is identified as part number KXA9906. The terminals are I-R-L and B+, and the pulley dimension needs to be checked as part of the replacement process. Those points matter because the electrical connections, mounting style and pulley arrangement all need to match the application, not just the voltage rating.

OEX products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with factories that are ISO9001 certified to support engineering, testing and quality control procedures. The warranty listed for this alternator is 3 years for passenger use and 1 year for commercial use, which gives a clear reference point for the intended ownership profile.

Key Features

• 12V alternator
• 20A power rating
• Kokusan Denki style
• Permanent magnet design
• Internal regulator
• Single leg mount

Specifications

• Part number: KXA9906
• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Current output: 20A
• Mount leg thickness: 15mm
• Adjusting hole diameter: 8mm
• Pivot hole diameter: 11mm

Verified fitment references

• ISUZU 4LE1
• ISUZU 4LE1 1995
• SAKAI SW500
• SAKAI SW500 2002
• SAKAI TW500-1E
• SAKAI TW500-1E 2001
• SAKAI TW500-1E 2002
• SAKAI TW500-1E 2003

Application and Buying Notes

Before purchasing, confirm the old alternator matches part number KXA9906 or compare the physical details closely. The important checkpoints here are 12V, 20A, Kokusan Denki style, single leg mounting, 15mm mount leg thickness, 8mm adjusting hole diameter and 11mm pivot hole diameter. If any of those measurements differ, the unit may not interchange correctly even if the vehicle is similar.

The terminal arrangement is I-R-L and B+, and the note specifically says to check pulley dimension. That is a practical step, because pulley fit and terminal layout affect installation and operation just as much as the alternator body itself. The unit also uses an internal regulator and permanent magnet construction, so the replacement needs to suit that specification rather than a different regulator or charging setup.

Fitment references are provided for ISUZU 4LE1, including 1995, and for SAKAI SW500 and SAKAI TW500-1E across 2001 to 2003. Even with those references, the safest approach is to confirm the application details against the existing alternator, mounting style and pulley dimension before ordering. That is especially important on machinery and engine-specific applications where small differences can change the correct replacement.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number KXA9906 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type ALTERNATOR, Unit of Measure EACH, Warranty 3yr Passenger 1yr Commercial, Mount Leg Thickness 15mm, Power Rating (Amp) 20, Suits Unit Make Kokusan Denki, Note Permanent magnet. Terminals, I-R-L and B+. Check pulley dimension, Item Type Alternator, Product Group 2 ALTERNATORS.

Additional published details for cross-checking include Part No. KXA9906, Brand OEX, Description OEX Alternator 12V 20A Kokusan Denki Style, Adjusting Hole Diameter 8, Pivot Hole Diameter 11, Regulator Type Internal, Voltage 12, Alternator Mount Single Leg, New / Reman. New, Product Group 1 ROTATING ELECTRICAL.

OEX Alternator 12V 20A Kokusan Denki Style. Part number KXA9906 should be checked first. Listed voltage is 12. Listed output rating is 20. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single Leg. Regulator type is Internal. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number KXA9906, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

For a alternator in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 and output 20 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include ISUZU 4LE1, ISUZU 4LE1 1995, SAKAI SW500, SAKAI SW500 2002, SAKAI TW500-1E, SAKAI TW500-1E 2001. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

Compatibility note: Please confirm fitment by matching part number KXA9906, Kokusan Denki style application details, mounting measurements, terminal arrangement I-R-L and B+, and pulley dimension before purchase.

FAQ

What is the part number for this alternator?

The part number is KXA9906. For this listing, part number KXA9906 is the main reference point. Listed voltage is 12. Listed output rating is 20. Published fitment references include ISUZU 4LE1, ISUZU 4LE1 1995, SAKAI SW500. These details should still be checked against the original unit before ordering.

What voltage and output does this alternator have?

It is a 12V alternator with a 20A power rating. For this listing, part number KXA9906 is the main reference point. Listed voltage is 12. Listed output rating is 20. Published fitment references include ISUZU 4LE1, ISUZU 4LE1 1995, SAKAI SW500. These details should still be checked against the original unit before ordering.

What style or unit make does it suit?

It is listed as Kokusan Denki style and suits unit make Kokusan Denki. For this listing, part number KXA9906 is the main reference point. Listed voltage is 12. Listed output rating is 20. Published fitment references include ISUZU 4LE1, ISUZU 4LE1 1995, SAKAI SW500. These details should still be checked against the original unit before ordering.

What mounting details are provided?

It is a single leg alternator with a 15mm mount leg thickness, 8mm adjusting hole diameter and 11mm pivot hole diameter. For this listing, part number KXA9906 is the main reference point. Listed voltage is 12. Listed output rating is 20. Published fitment references include ISUZU 4LE1, ISUZU 4LE1 1995, SAKAI SW500. These details should still be checked against the original unit before ordering.

What terminal arrangement does it use?

The note lists terminals I-R-L and B+. For this listing, part number KXA9906 is the main reference point. Listed voltage is 12. Listed output rating is 20. Published fitment references include ISUZU 4LE1, ISUZU 4LE1 1995, SAKAI SW500. These details should still be checked against the original unit before ordering.

Which vehicles or applications are referenced?

Verified fitment references include ISUZU 4LE1, ISUZU 4LE1 1995, SAKAI SW500, SAKAI SW500 2002, and SAKAI TW500-1E from 2001, 2002 and 2003. For this listing, part number KXA9906 is the main reference point. Listed voltage is 12. Listed output rating is 20. Published fitment references include ISUZU 4LE1, ISUZU 4LE1 1995, SAKAI SW500. These details should still be checked against the original unit before ordering.