OEX Starter Motor 12V 10 Tooth CW Denso Style DXS603

The OEX DXS603 is a new 12V starter motor in a Denso style layout, built with 10 teeth, clockwise rotation and a 3-hole starter mount type. Key measurements include 127mm mount centres A, 90mm mount centres B and 90mm mount centres C, with an overall length of 318mm and an 89mm flange diameter.

This unit is rated at 3kW and uses a 40mm pinion diameter with 48mm pinion at rest. The mounting hole diameter is 12mm, and the unit weight is listed at 10kg. It is supplied as a new starter motor, not a remanufactured unit.

The listed application notes include wet clutch, with the unit described as suitable for wet or dry clutch use. The part is identified as OEX part number DXS603 and is supplied under the OEX brand for rotating electrical applications.

OEX states its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, and from ISO certified factories. The product is also backed by a comprehensive nationwide warranty, with the listed warranty being 3 years for passenger use and 1 year for commercial use.

Key Features

• 12V starter motor
• 10 tooth pinion
• Clockwise rotation
• 3kW power rating
• Denso style unit
• 3-hole starter mount type

Specifications

• Voltage: 12V
• Power rating: 3kW
• Rotation: CW
• Number of teeth: 10
• Suits unit make: Denso
• Starter mount type: 3 hole
• Mount centres A: 127mm
• Mount centres B: 90mm

Known fitment applications

• BOBCAT 863C/F/G
• BOBCAT 863H-C/F/G
• BOBCAT 873C/F/G
• BOBCAT 873H/HG
• BOBCAT 883G
• BOBCAT A220
• BOBCAT S250H
• CASE A220

Application and Buying Notes

Before ordering, check the starter against the removed unit using the part number DXS603, the Denso style configuration, and the mounting measurements. The key checks here are the 127mm mount centres A, 90mm mount centres B and C, the 89mm flange diameter, the 12mm mount hole diameter and the 3-hole mount type.

The tooth count and rotation matter just as much as the physical dimensions. This starter is a 10 tooth, clockwise rotating 12V unit with a 3kW rating, so the pinion count, rotation and electrical system must line up with the machine before fitment is assumed.

If the machine uses a wet clutch or a wet or dry clutch arrangement, the listed note is relevant, but it should still be matched against the original starter and application details. The overall length of 318mm and the pinion at rest measurement of 48mm are useful cross-checks when comparing against the old unit.

This is a new starter motor, which is important if you are comparing it with an exchange or remanufactured alternative. For working machines, it is still worth checking cable reach, mounting clearance and the available space around the 40mm pinion diameter before final installation.

The fitment list includes several BOBCAT, CASE and CATERPILLAR applications, including BOBCAT 863C/F/G, CASE A220, CATERPILLAR 3114 and CATERPILLAR D6M. Even with those applications listed, the safest approach is to confirm the starter dimensions and part number against the exact machine build before purchase.

If you are replacing a starter on a machine that has been modified, repaired previously or fitted with a non-original unit, compare the old starter closely with this one. Matching the tooth count, rotation, mount centres and flange diameter is the most reliable way to avoid ordering the wrong part.

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 DXS603 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 48mm, Power Rating 3kW, Suits Unit Make Denso, Note Wet Clutch.

Additional published details for cross-checking include New / Reman. New, Wet / Dry Clutch Wet or Dry, Product Group 2 STARTER MOTORS, Part No. DXS603, Brand OEX, Description OEX Starter Motor 12V 10Th CW Denso Style, Flange Diameter 89mm, Mount Centres B 90mm, Mount Hole Diameter 12.

OEX Starter Motor 12V 10Th CW Denso Style. Part number DXS603 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 DXS603, 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.

Compatibility note: Please confirm fitment using part number DXS603, the Denso style configuration, and the listed mounting and electrical specifications before ordering. Fitment should always be checked against the original starter and the exact machine application.

FAQ

What is the part number for this starter motor?

The listed part number is DXS603.

Is this a new or remanufactured starter motor?

This unit is listed as new.

What voltage and rotation does it use?

It is a 12V starter motor with clockwise rotation.

How many teeth does the pinion have?

The pinion has 10 teeth.

What are the main mounting measurements?

The listed measurements are 127mm mount centres A, 90mm mount centres B, 90mm mount centres C, an 89mm flange diameter and a 12mm mount hole diameter.

Which machines are listed in the fitment information?

Listed applications include BOBCAT 863C/F/G, BOBCAT 873C/F/G, BOBCAT A220, CASE A220, CATERPILLAR 3114, CATERPILLAR 3116T, CATERPILLAR 446D, CATERPILLAR D5M, CATERPILLAR D6M and CATERPILLAR IT28, among others.