OEX Starter Motor 12V 10 Tooth CW Denso Style DXS4009

The OEX DXS4009 is a new 12V starter motor in a Denso style configuration, with 10 teeth, clockwise rotation and a 3kW power rating. It is listed as a 3-hole starter motor with mount centres of 127mm and 90mm, which makes those measurements important checks before ordering.

This unit suits Denso applications and has a flange diameter of 89mm, overall length of 300mm, pinion diameter of 40mm and pinion at rest of 30mm. It weighs 6.6kg and is supplied as each, so it is intended as a direct replacement-style component where the physical dimensions and mounting layout match the original unit.

OEX states its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, made in ISO certified factories, and backed by a comprehensive nationwide warranty. The listed warranty for this starter motor is 3 years for passenger use and 1 year for commercial use, so it is worth matching the application carefully before purchase.

Key Features

• 12V starter motor
• 10-tooth pinion
• Clockwise rotation
• 3kW power rating
• Denso style / suits Denso unit make
• New unit, not remanufactured

Specifications

• Part number: DXS4009
• Brand: OEX
• Product type: Starter motor
• Voltage: 12V
• Rotation: CW
• Number of teeth: 10
• Power rating: 3kW
• Starter mount type: 3 hole

Fitment guidance

• Verified fitment includes a broad range of CASE IH, CATERPILLAR, CHALLENGER, CHAMBERLAIN, CLAAS, FARMTRAC, GEHL, GENIE, HIDROMEK, JCB, JLG, JOHN DEERE, KIOTI, LANDINI, MAHINDRA AGRICULTURAL, MANITOU, MASSEY FERGUSON, MCCORMICK, MILLERS, NORMET, OKA, OTTAWA, PERKINS, SUNWARD, THWAITES, URSUS, VOLVO CONSTRUCTION and WACKER NEUSON applications.
• Supported application examples include CASE IH CX, MX80C, MX90C and MX100C; CATERPILLAR 216, 226, 236, 236B and 236B2; CHALLENGER MT; CHAMBERLAIN C456; CLAAS AXOS; FARMTRAC 675DTN, 690DT and 9120DTN; GEHL TX408; GENIE GTH-4013; HIDROMEK HMK102B/S; JCB 3CX, 3CX14 and 3CX15; JLG 4013PS; JOHN DEERE B1100 and B1120; KIOTI SERIES PX; LANDINI LEGEND, MULTIFARM, POWERFARM, REX, SERIES 4 and TREKKER; MANITOU MT1030S, MT1335, MT1440 and MT732; and several MASSEY FERGUSON, MCCORMICK, PERKINS and WACKER NEUSON listings.
• Perkins mount note: for drivers side mount use DXS569.
• The listed fitment data also includes models such as Volvo Construction MC80, MC90 and MC110, plus Thwaites 9 tonne power swivel, Sunward SWE125 and Ottawa 60/T.
• Because the application list is broad, the physical checks matter: 12V, 10 teeth, CW rotation, 3-hole mount, 127mm and 90mm mount centres, 89mm flange diameter and 300mm overall length.

Application and Buying Notes

Before ordering, compare the part number DXS4009, the 12V rating and the 10-tooth CW configuration against the original starter on the machine. The most common mismatch points on starters are tooth count, rotation, mount pattern and overall length, and this unit has a 3-hole mount with 127mm and 90mm mount centres.

The Denso style and suitment to Denso unit make are useful identifiers, but they do not replace a physical check. Confirm the flange diameter of 89mm, mount hole diameter of 11mm, pinion diameter of 40mm and pinion at rest of 30mm if you are matching an existing starter housing or bell housing clearance.

If the machine is one of the listed applications, use the exact model and any noted mount details to verify the correct version. A specific note is supplied for drivers side mount use on Perkins applications, where DXS569 is listed instead, so that side and mounting arrangement need attention.

This starter is listed as new, with a 3kW power rating and dry clutch reference. Those details are helpful for comparing like-for-like units, but the safest purchase is still the one where voltage, tooth count, rotation, mounting and physical dimensions all line up with the original part.

The 6.6kg weight and 300mm overall length can also help when comparing against the removed unit, especially where the machine has been fitted with a similar-looking starter from a different supplier. When in doubt, use the machine model, engine/application details and the part number together rather than relying on appearance alone.

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 DXS4009 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 10, Pinion at Rest 30mm, Power Rating 3kW, Suits Unit Make Denso, Note For drivers side mount use DXS569. "Perkins Mount".

Additional published details for cross-checking include New / Reman. New, Wet / Dry Clutch Dry, Product Group 2 STARTER MOTORS, Part No. DXS4009, Brand OEX, Description OEX Starter Motor 12V 10Th CW Denso Style, Flange Diameter 89mm, Mount Centres B 90mm, Mount Hole Diameter 11.

OEX Starter Motor 12V 10Th CW Denso Style. Part number DXS4009 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 DXS4009, 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.

Compatibility note: Confirm fitment by matching DXS4009 with the machine application, 12V electrical system, 10-tooth clockwise layout, 3-hole mounting pattern and the listed measurements before ordering.

FAQ

What is the part number for this starter motor?

The part number is DXS4009.

Is this starter motor 12V or 24V?

It is listed as 12V.

How many teeth does the pinion have?

The pinion has 10 teeth.

What direction does this starter rotate?

It is clockwise rotation, listed as CW.

Is this a new unit or a remanufactured unit?

It is listed as new, not remanufactured.

What warranty is listed for this starter motor?

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