OEX Starter Motor 12V 13 Tooth CW Denso Style DXS4028

The OEX DXS4028 starter motor is a new 12V unit with clockwise rotation, 13 teeth, and a 2.5kW power rating. It is listed as a Denso style starter motor and suits Denso applications where the mounting and pinion dimensions match the vehicle's original unit.

Key physical dimensions include a 127mm mount centres A measurement, 89mm flange diameter, 298mm overall length, 40mm pinion diameter, 48mm pinion at rest, and 11.5mm mount hole diameter. These figures matter when confirming that the replacement starter will sit correctly in place and engage as intended.

This unit is a 2 hole starter motor and weighs 8.3kg. It is sold as an OEX rotating electrical component, with the brand stating its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, and from ISO certified factories.

Warranty coverage is listed as 3 years for passenger use and 1 year for commercial use. As with any starter motor, the safest approach is to match the part number DXS4028 and compare the electrical, mounting, and pinion details against the removed unit before ordering.

Key Features

• 12V starter motor
• 13 tooth pinion
• Clockwise rotation
• 2.5kW power rating
• Denso style unit
• 2 hole starter mount

Specifications

• Voltage: 12V
• Power rating: 2.5kW
• Rotation: CW
• Number of teeth: 13
• Starter mount type: 2 hole
• Mount centres A: 127mm
• Flange diameter: 89mm
• Overall length: 298mm

Verified fitment information

• CASE 1840 2002
• CASE 1845C
• CASE 40XT 2002 to 2007
• CASE 450 2008 to 2009
• CATERPILLAR AGRICULTURAL SP165
• CUMMINS ISB 6.7
• CUMMINS ISB 6.7 2010
• DYNAPAC CA250/D 2003 to 2008

Application and Buying Notes

When replacing a starter motor, the part number and physical match are the two most important checks. This unit is identified as DXS4028, and it has a 12V electrical setup, 13 teeth, clockwise rotation, and a 2 hole mounting pattern, so those details should line up with the original starter before you fit it.

The mounting measurements are just as important as the electrical details. With 127mm mount centres A, 89mm flange diameter, 11.5mm mount hole diameter, and 298mm overall length, the unit needs to suit the space and bolt pattern on the machine. If any of those dimensions differ from the original starter, it may not install correctly.

Pinion engagement is another point to check carefully. This starter has a 40mm pinion diameter and 48mm pinion at rest, which are practical figures for confirming alignment and clearance against the removed part. The 2.5kW rating is also a useful reference when comparing against the original application.

This is a new OEX starter motor and not a remanufactured unit, which may matter if you are replacing a worn starter after repeated starting issues. The listed warranty is 3 years for passenger use and 1 year for commercial use, so it is worth confirming how the vehicle or machine is used before purchase.

The fitment list includes CASE, CATERPILLAR AGRICULTURAL, CUMMINS, DYNAPAC, MASSEY FERGUSON, and NEW HOLLAND applications, but the best practice is still to confirm the exact application and the starter removed from the machine. A model name alone is not enough if the machine has been changed or fitted with a different starter previously.

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 DXS4028 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 STARTER MOTOR, Unit of Measure EACH, Warranty 3yr Passenger 1yr Commercial, Mount Centres A 127mm, Number of Teeth 13, Pinion at Rest 48mm, Power Rating 2.5kW, Suits Unit Make Denso, Item Type Starter Motor, Starter Mount Type 2 Hole.

Additional published details for cross-checking include Weight 8.3kg, Product Group 1 ROTATING ELECTRICAL, Part No. DXS4028, Brand OEX, Description OEX Starter Motor 12V 13Th CW Denso Style, Flange Diameter 89mm, Mount Hole Diameter 11.5, Overall Length 298mm, Pinion Diameter 40mm, Rotation CW.

OEX Starter Motor 12V 13Th CW Denso Style. Part number DXS4028 should be checked first. Listed voltage is 12. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number DXS4028, 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 starter motor in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include CASE 1840 2002, CASE 1845C, CASE 40XT, CASE 40XT 2002, CATERPILLAR AGRICULTURAL SP165, CUMMINS ISB 6.7. 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.

The listed warranty is 3yr Passenger 1yr Commercial. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Please confirm fitment by matching part number DXS4028 and checking voltage, rotation, tooth count, mount type, and the listed dimensions against the original starter motor before ordering.

FAQ

Is this starter motor new or remanufactured?

This OEX starter motor is listed as new, not remanufactured.

What voltage is the unit?

It is a 12V starter motor.

What rotation does it have?

The rotation is clockwise, listed as CW.

How many teeth does the pinion have?

It has 13 teeth.

What part number should I use to confirm compatibility?

The listed part number is DXS4028.

What warranty is listed?

The warranty is listed as 3 years for passenger use and 1 year for commercial use.