OEX Genuine Starter Motor 12V 11 Tooth CW Part No. 1K0K18400

The OEX Genuine Starter Motor is a 12V, clockwise-rotation unit with 11 teeth and Part No. 1K0K18400. It is listed as a new starter motor for passenger vehicle applications, supplied as an OE product, and built around a Denso unit make.

Key identifying dimensions include 121mm mount centres, a 95mm flange diameter, M12x1.25 mount hole diameter, and an overall length of 225mm. The pinion diameter is 40mm and the pinion at rest measures 9mm, so these details should be checked carefully against the original starter before ordering.

This starter motor carries a one-year warranty and weighs 3.8kg. With a 2-hole starter mount type and 11-tooth pinion, it is intended for applications that match the same electrical and mounting setup rather than being selected by appearance alone.

Key Features

• OE product
• 12V starter motor
• 11-tooth pinion
• Clockwise rotation
• 2-hole starter mount
• New unit

Specifications

• Brand: OEX
• Part No.: 1K0K18400
• Product type: Starter Motor Passenger
• Voltage: 12V
• Rotation: CW
• Number of teeth: 11
• Starter mount type: 2 hole
• Mount centres A: 121mm

Fitment notes

• Confirmed fitment references supplied: MAZDA BT-50
• Confirmed fitment references supplied: MAZDA BT-50 2020

Application and Buying Notes

Before ordering, match the part number 1K0K18400 and compare the starter layout against your original unit. The critical checks on this starter are 12V voltage, clockwise rotation, 11 teeth, and the 2-hole mounting pattern with 121mm mount centres.

Physical dimensions matter with starter motors. Confirm the 95mm flange diameter, M12x1.25 mount hole thread, 225mm overall length, 40mm pinion diameter, and 9mm pinion at rest so the replacement aligns correctly with the engine and bellhousing setup.

The listed fitment references include MAZDA BT-50 and MAZDA BT-50 2020, but those references should still be matched to the vehicle’s exact application and the existing starter details. Starter motors can vary by unit make, mounting pattern, and tooth count, so checking the original part is the safest approach.

Because this unit is listed as a Denso application and supplied as an OE product, the best comparison is against the original starter currently fitted to the vehicle. If the old unit is available, compare the mounting face, pinion position, rotation, and electrical configuration before finalising the order.

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 1K0K18400 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 PASSENGER, Unit of Measure EACH, Warranty One Year, Mount Centres A 121mm, Number of Teeth 11, Pinion at Rest 9mm, Rotation CW, Voltage 12, Starter Mount Type 2 Hole.

Additional published details for cross-checking include Product Group 2 STARTER MOTORS, Part No. 1K0K18400, Brand OEX, Description Genuine Starter Motor 12V 11Th CW, Flange Diameter 95mm, Mount Hole Diameter M12x1.25, Overall Length 225mm, Pinion Diameter 40mm, Suits Unit Make Denso, New / Reman. New.

Genuine Starter Motor 12V 11Th CW. Part number 1K0K18400 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 1K0K18400, 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 passenger 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 MAZDA BT-50, MAZDA BT-50 2020. 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: Please confirm fitment by matching Part No. 1K0K18400, the 12V CW specification, 11-tooth pinion, 2-hole mount, and the listed mounting dimensions against your original starter and vehicle application.

FAQ

What voltage is this starter motor?

It is a 12V starter motor. For this listing, part number 1K0K18400 is the main reference point. Listed voltage is 12. Published fitment references include MAZDA BT-50, MAZDA BT-50 2020. These details should still be checked against the original unit before ordering.

What is the rotation direction?

The starter is clockwise rotation, listed as CW. For this listing, part number 1K0K18400 is the main reference point. Listed voltage is 12. Published fitment references include MAZDA BT-50, MAZDA BT-50 2020. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

It has an 11-tooth pinion. For this listing, part number 1K0K18400 is the main reference point. Listed voltage is 12. Published fitment references include MAZDA BT-50, MAZDA BT-50 2020. These details should still be checked against the original unit before ordering.

What vehicle references are supplied for fitment?

The supplied fitment references are MAZDA BT-50 and MAZDA BT-50 2020. For this listing, part number 1K0K18400 is the main reference point. Listed voltage is 12. Published fitment references include MAZDA BT-50, MAZDA BT-50 2020. These details should still be checked against the original unit before ordering.

What are the main mounting dimensions?

The listed mounting details are 121mm mount centres, a 95mm flange diameter, M12x1.25 mount hole diameter, and a 2-hole starter mount type. For this listing, part number 1K0K18400 is the main reference point. Listed voltage is 12. Published fitment references include MAZDA BT-50, MAZDA BT-50 2020. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured part?

It is listed as a new starter motor. For this listing, part number 1K0K18400 is the main reference point. Listed voltage is 12. Published fitment references include MAZDA BT-50, MAZDA BT-50 2020. These details should still be checked against the original unit before ordering.