OEX Starter Motor 24V 12 Tooth CW Delco 37MT Style DXS9141

The OEX starter motor listed here is a 24V unit with 12 teeth, clockwise rotation, and Delco suitment in 37MT style. It is identified by part number DXS9141 and is supplied new, with a 4.5kW power rating and a 3-hole starter mount type.

Key physical dimensions include 127mm mount centres A, 90mm mount centres B and C, an 89mm flange diameter, 11mm mount hole diameter, and an overall length of 400mm. The pinion at rest is 48mm and the pinion diameter is 46mm, so matching the existing unit’s mounting and pinion geometry is important.

This starter motor is a rotating electrical part from OEX, weighing 22.997kg, and it is listed as suitable for wet or dry clutch applications. The note on the item states 37MT and that length may vary, which makes direct comparison against the removed starter a practical step before ordering.

Key Features

• 24V starter motor with 12 teeth
• Clockwise rotation
• Delco suitment, 37MT style
• 4.5kW power rating
• New unit, supplied each
• 3-hole starter mount type

Specifications

• Voltage: 24V
• Power rating: 4.5kW
• Number of teeth: 12
• Rotation: CW
• Series: 37MT
• Suits unit make: Delco
• Starter mount type: 3 hole
• Mount centres A: 127mm

Fitment guidance

• Fitment data supplied includes Atlas Copco ROC D7-RRC applications.
• Fitment data supplied includes Caterpillar applications such as 120H, 120K, 12M, 140H, 140K, 140M, 14H, 160K, 163H, 324, 324DL, 325, 325D, 325DL, 325DLN, 328DLCR, 329, 329D, 329DL, 330, 345BLII and 613CII.
• Additional Caterpillar coverage shown in the supplied fitment data includes 928G, 938G, 938GII, 950G, 950GII, 950K, 953C, 962G, 962GII, 962K, 963C, 966G, 966G Series 2, Agricultural 324D FM, Agricultural 325D FM, Agricultural 584HD, AP1000D, CP563D, CS563D, CS583D, D5M, D5N, D5N LGP, D5N XL, D6M, D6N, D7RDSII, D7RII, IT38GII, IT62GII, PM102 and R1700G.
• The supplied application preview also shows year-specific Atlas Copco ROC D7-RRC entries and Caterpillar 120H, 120K, 12M and 140H entries.
• Always compare the original starter’s mounting pattern, length, tooth count, rotation and unit make before ordering.

Application and Buying Notes

For a starter motor like this one, the important checks are the 24V system voltage, 12-tooth pinion, clockwise rotation, Delco unit make, and the 3-hole mount pattern. The listed mount centres of 127mm and 90mm, along with the 89mm flange diameter and 11mm mount hole diameter, give you a practical way to compare the replacement against the unit being removed.

The overall length is listed as 400mm, but the note also says length may vary. That makes the removed starter a useful reference, especially where the engine bay is tight or the nose and housing shape need to line up exactly with the existing installation.

The pinion details matter as much as the electrical rating. This unit is listed with 12 teeth, a 46mm pinion diameter, and 48mm pinion at rest, so matching the gear engagement characteristics of the original part is part of a proper fitment check.

Although the part is listed for Atlas Copco ROC D7-RRC and a range of Caterpillar applications, those applications should still be verified against the exact machine model, year where shown, and original part details. Matching by model name alone is not enough on heavy equipment starter motors.

If you are comparing options, use part number DXS9141 first, then confirm voltage, rotation, tooth count and mounting dimensions. Those are the details that normally decide whether a starter will bolt up and engage correctly without rework.

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 DXS9141 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 48mm, Power Rating 4.5kW, Series 37MT, Voltage 24.

Additional published details for cross-checking include Item Type Starter Motor, Starter Mount Type 3 Hole, Weight 22.997kg, Product Group 1 ROTATING ELECTRICAL, Part No. DXS9141, Brand OEX, Description OEX Starter Motor 24V 12Th CW Delco 37MT Style, Flange Diameter 89mm, Mount Centres B 90mm, Mount Hole Diameter 11.

OEX Starter Motor 24V 12Th CW Delco 37MT Style. Part number DXS9141 should be checked first. Listed voltage is 24. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number DXS9141, 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 24 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include ATLAS COPCO ROC D7-RRC, ATLAS COPCO ROC D7-RRC 2006, ATLAS COPCO ROC D7-RRC 2007, ATLAS COPCO ROC D7-RRC 2008, CATERPILLAR 120H, CATERPILLAR 120H 2006. 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 compatibility by matching part number DXS9141 and checking the application details, 24V voltage, 12-tooth CW rotation, 3-hole mounting pattern, and the listed dimensions against the removed starter and machine requirements before purchase.

FAQ

What is the part number for this starter motor?

The part number listed is DXS9141.

What voltage is this starter motor?

It is a 24V starter motor.

How many teeth does the pinion have?

The pinion has 12 teeth.

What rotation does it use?

It is clockwise rotation, listed as CW.

What unit make does it suit?

It is listed to suit Delco units.

Is this a new or remanufactured starter motor?

It is listed as new.