OEX Starter Motor 12V 9 Tooth CW Denso Style DXS4057

The OEX Starter Motor DXS4057 is a new 12V unit with 9 teeth, clockwise rotation and a Denso style design. It is listed with a 2 hole starter mount, 146mm mount centres, a 70mm flange diameter and M10x1.5 mount hole diameter, so it is the sort of part that should be matched carefully to the original starter before purchase.

This starter is supplied as a new rotating electrical component and weighs 4.66kg. The pinion measures 35mm in diameter and sits 26mm at rest, while the overall length is 245mm. Those dimensions are important when checking clearance, mounting alignment and gear engagement on the vehicle.

OEX states that its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, and that they are sourced from ISO certified factories. The part is backed by a three year warranty, which gives added buying confidence when the replacement needs to match the original 12V Denso style starter arrangement exactly.

Key Features

• 12V starter motor
• 9 tooth pinion
• Clockwise rotation
• Denso style unit
• 2 hole starter mount
• New part, not remanufactured

Specifications

• Part No.: DXS4057
• Brand: OEX
• Product type: Starter motor
• Voltage: 12V
• Number of teeth: 9
• Rotation: CW
• Starter mount type: 2 hole
• Mount centres A: 146mm

Fitment guidance

• LAND ROVER: DISCOVERY, DISCOVERY 2009, DISCOVERY 2010, DISCOVERY 2011, DISCOVERY 2012, plus other listed applications

Application and Buying Notes

Before ordering, compare the part number DXS4057 and the physical details against the original starter on the vehicle. The key checks here are 12V, 9 teeth, clockwise rotation, 2 hole mounting, 146mm mount centres and the Denso style application. If any of those details differ from the removed unit, the part may not be the correct match.

The listed 70mm flange diameter, M10x1.5 mount hole size and 245mm overall length are practical checks for fit and installation space. These measurements matter as much as the electrical rating, because a starter that is electrically similar can still be unsuitable if the mounting pattern, pinion position or body length does not line up with the vehicle.

This starter is a new part and is intended for use with Denso style applications. The 35mm pinion diameter and 26mm pinion at rest are useful reference points when comparing against the existing unit. If the original starter is unavailable, use the vehicle details, the removed part, and the mounting measurements together rather than relying on one detail alone.

The weight is listed at 4.66kg, which can help when comparing packaging and handling against the original unit. The three year warranty provides added assurance, but it does not replace the need to confirm fitment. A starter motor must match the vehicle application, rotation, and mounting arrangement closely for correct installation.

Fitment data supplied with this part references Land Rover Discovery applications, including model years from 2009 through 2016 in the grouped preview. Because the full application list is not expanded here, the safest approach is to confirm the original starter specifications and use the part number DXS4057 as the primary reference before ordering.

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 DXS4057 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 Three Years, Mount Centres A 146mm, Number of Teeth 9, Pinion at Rest 26mm, Rotation CW, Voltage 12, Starter Mount Type 2 Hole.

Additional published details for cross-checking include Product Group 2 STARTER MOTORS, Part No. DXS4057, Brand OEX, Description OEX Starter Motor 12V 9Th CW Denso Style, Flange Diameter 70mm, Mount Hole Diameter M10x1.5, Overall Length 245mm, Pinion Diameter 35mm, Suits Unit Make Denso, New / Reman. New.

OEX Starter Motor 12V 9Th CW Denso Style. Part number DXS4057 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 DXS4057, 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 LAND ROVER DISCOVERY, LAND ROVER DISCOVERY 2009, LAND ROVER DISCOVERY 2010, LAND ROVER DISCOVERY 2011. 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 Three Years. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm compatibility by matching the part number DXS4057, the 12V Denso style application, clockwise rotation, 9 tooth pinion, 2 hole mount, 146mm mount centres and the listed dimensions against the vehicle’s original starter motor before purchase.

FAQ

What type of part is DXS4057?

DXS4057 is an OEX starter motor. It is listed as a new 12V starter motor with 9 teeth, clockwise rotation and a Denso style application.

What voltage does this starter motor use?

This starter motor is specified as 12V.

How many teeth does the starter pinion have?

The starter is specified with 9 teeth.

What mounting details are listed for this part?

The listed mounting details are a 2 hole starter mount, 146mm mount centres, a 70mm flange diameter and M10x1.5 mount hole diameter.

Is this starter motor new or remanufactured?

It is listed as new, not remanufactured.

What warranty is listed for this starter motor?

The listed warranty is three years.