OEX Starter Motor 12V 12T CW Mitsubishi Style MXS309

The OEX Starter Motor MXS309 is a new 12V unit with 12 teeth and clockwise rotation, built in Mitsubishi style for rotating electrical applications. It is rated at 2.5kW and uses a 3-hole starter mount, with mount centres of 127mm and 90mm for the listed positions.

Key physical dimensions include an overall length of 287mm, a flange diameter of 89mm, a pinion diameter of 37mm, and a pinion at rest measurement of 33mm. The unit weighs 7.672kg and uses an 11mm mount hole diameter, so measuring the original starter and mounting points is important before ordering.

OEX states that its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with production from ISO certified factories and support from a comprehensive nationwide warranty. The listed warranty for this starter motor is 3 years for passenger use and 1 year for commercial use.

Key Features

• 12V starter motor
• 12-tooth pinion
• Clockwise rotation
• Mitsubishi style
• New unit
• 3-hole mount

Specifications

• Voltage: 12V
• Power rating: 2.5kW
• Number of teeth: 12
• Rotation: CW
• Starter mount type: 3 hole
• Mount centres A: 127mm
• Mount centres B: 90mm
• Mount centres C: 90mm

Fitment guidance

• Listed fitment support includes Ford F-250 applications.
• Listed fitment support includes International Navistar T444E applications.
• Ford F-250 appears in the supplied fitment data across multiple model years, including 1993 through 2003 in the preview provided.
• International Navistar T444E appears in the supplied fitment data across multiple model years, including 1988 through 1994 in the preview provided.

Application and Buying Notes

Before ordering, compare the part number MXS309, the 12V specification, the 12-tooth pinion, and the clockwise rotation against your existing starter. The mount layout is also important here, with a 3-hole starter mount, 127mm mount centres A, and 90mm mount centres B and C.

This starter is listed as Mitsubishi style, so the closest match is not just a visual one. Check the overall length of 287mm, flange diameter of 89mm, pinion diameter of 37mm, and pinion at rest of 33mm against the removed unit or the vehicle application details.

Fitment data supplied for this part references Ford F-250 and International Navistar T444E applications, including multiple years in each group. Because starter motors can vary by engine, transmission, and production changes, the safest approach is to confirm the vehicle details and compare the mounting pattern before purchase.

The unit is new and rated at 2.5kW, which gives you a clear specification to match if you are replacing an existing starter with the same output. The listed dry clutch arrangement and 11mm mount hole diameter are also useful checkpoints when you are verifying interchangeability on the bench or in the vehicle.

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 MXS309 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, Mount Centres C 90mm, Number of Teeth 12, Pinion at Rest 33mm, Power Rating 2.5kW, Suits Unit Make Mitsubishi, Item Type Starter Motor.

Additional published details for cross-checking include Starter Mount Type 3 Hole, Weight 7.672kg, Product Group 1 ROTATING ELECTRICAL, Part No. MXS309, Brand OEX, Description OEX Starter Motor 12V 12Th CW Mitsubishi Style, Flange Diameter 89mm, Mount Centres B 90mm, Mount Hole Diameter 11, Overall Length 287mm.

OEX Starter Motor 12V 12Th CW Mitsubishi Style. Part number MXS309 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 MXS309, 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 FORD F-250, FORD F-250 1993, FORD F-250 1994, FORD F-250 1995, INTERNATIONAL NAVISTAR T444E, INTERNATIONAL NAVISTAR T444E 1988. 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: Confirm fitment by matching part number MXS309, the 12V / 12-tooth / CW specification, and the listed mounting dimensions against the original starter and vehicle application details before ordering.

FAQ

What is the part number for this starter motor?

The listed part number is MXS309. For this listing, part number MXS309 is the main reference point. Listed voltage is 12. Published fitment references include FORD F-250, FORD F-250 1993, FORD F-250 1994. These details should still be checked against the original unit before ordering.

What voltage is this starter motor?

This starter motor is 12V. For this listing, part number MXS309 is the main reference point. Listed voltage is 12. Published fitment references include FORD F-250, FORD F-250 1993, FORD F-250 1994. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

The starter motor has 12 teeth. For this listing, part number MXS309 is the main reference point. Listed voltage is 12. Published fitment references include FORD F-250, FORD F-250 1993, FORD F-250 1994. These details should still be checked against the original unit before ordering.

What rotation does this starter motor use?

It is clockwise rotation, listed as CW. For this listing, part number MXS309 is the main reference point. Listed voltage is 12. Published fitment references include FORD F-250, FORD F-250 1993, FORD F-250 1994. These details should still be checked against the original unit before ordering.

What are the main mounting measurements?

The listed mount centres are 127mm for A and 90mm for B and C. It also has a 3-hole starter mount and an 11mm mount hole diameter. For this listing, part number MXS309 is the main reference point. Listed voltage is 12. Published fitment references include FORD F-250, FORD F-250 1993, FORD F-250 1994. These details should still be checked against the original unit before ordering.

What vehicles are shown in the fitment data?

The supplied fitment data references Ford F-250 and International Navistar T444E applications, with multiple years shown in the preview provided. For this listing, part number MXS309 is the main reference point. Listed voltage is 12. Published fitment references include FORD F-250, FORD F-250 1993, FORD F-250 1994. These details should still be checked against the original unit before ordering.