OEX Starter Motor 12V 9 Tooth CW Mitsuba Style RXS803

The OEX starter motor RXS803 is a 12V unit with 9 teeth, clockwise rotation and a Mitsuba style fitment profile. It is listed as a remanufactured starter motor and uses a 2 hole starter mount, with a 75mm flange diameter and 114mm mount centres.

Key dimensions matter on starter replacement jobs, and this unit is specified with a 205mm overall length, 52mm nose cone length, 29mm pinion diameter and 33mm pinion at rest. The power rating is 1.4kW, which gives you a clear reference when matching against the original starter arrangement.

This OEX unit suits Mitsuba applications and is shown against Honda applications including Civic, Concerto and CRX variants in the supplied fitment data. As with any starter replacement, the safest check is to match the part number, rotation, tooth count and mounting measurements before ordering.

Key Features

• 12V starter motor
• 9 tooth pinion
• Clockwise rotation
• Mitsuba style
• 2 hole starter mount
• Remanufactured unit

Specifications

• Brand: OEX
• Type: Starter Motor
• Part No.: RXS803
• Voltage: 12V
• Rotation: CW
• Number of teeth: 9
• Power rating: 1.4kW
• Starter mount type: 2 hole

Known Fitment Applications

• Honda Civic
• Honda Concerto
• Honda CRX

Application and Buying Notes

When replacing a starter motor, the main checks are the part number RXS803, the Mitsuba style application, 12V system voltage and the 9 tooth clockwise configuration. The mounting pattern is also important here: this unit has a 2 hole starter mount, 114mm mount centres and 11.5mm mount hole diameter.

Physical dimensions should be compared carefully before fitment. The supplied measurements are 205mm overall length, 52mm nose cone length, 75mm flange diameter, 29mm pinion diameter and 33mm pinion at rest. Those figures help confirm that the starter will match the space and engagement points on the vehicle it is intended for.

The listed fitment data includes Honda Civic, Honda Concerto and Honda CRX applications, but it is still best practice to verify the exact vehicle build details against the original starter. Starter motors can vary by engine, transmission, production year and mounting arrangement, so a visual comparison with the old unit is strongly recommended.

Because this unit is remanufactured, it is sensible to inspect the existing starter and the vehicle’s terminal and mounting condition before installation. Clean earth points, sound battery condition and correct cable connections all matter, but the first purchase check remains the same: match the specifications, part number and application details before you 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 RXS803 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 114mm, Nose Cone Length 52mm, Overall Length 205mm, Pinion Diameter 29mm, Rotation CW, Voltage 12, Starter Mount Type 2 Hole.

Additional published details for cross-checking include Product Group 2 STARTER MOTORS, Part No. RXS803, Brand OEX, Description OEX Starter Motor 12V 9Th CW Mitsuba Style, Flange Diameter 75mm, Mount Hole Diameter 11.5, Number of Teeth 9, Pinion at Rest 33mm, Power Rating 1.4kW.

OEX Starter Motor 12V 9Th CW Mitsuba Style. Part number RXS803 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 RXS803, 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 HONDA CIVIC, HONDA CIVIC 1983, HONDA CIVIC 1984, HONDA CIVIC 1985. 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 RXS803, 12V clockwise 9 tooth specification, 2 hole mount pattern and the listed dimensions against the original starter motor and vehicle application.

FAQ

What is the part number for this starter motor?

The part number is RXS803. For this listing, part number RXS803 is the main reference point. Listed voltage is 12. Published fitment references include HONDA CIVIC, HONDA CIVIC 1983, HONDA CIVIC 1984. These details should still be checked against the original unit before ordering.

Is this a 12V starter motor?

Yes. The listed voltage is 12V. For this listing, part number RXS803 is the main reference point. Listed voltage is 12. Published fitment references include HONDA CIVIC, HONDA CIVIC 1983, HONDA CIVIC 1984. These details should still be checked against the original unit before ordering.

What rotation does this starter use?

It is listed as clockwise (CW) rotation. For this listing, part number RXS803 is the main reference point. Listed voltage is 12. Published fitment references include HONDA CIVIC, HONDA CIVIC 1983, HONDA CIVIC 1984. These details should still be checked against the original unit before ordering.

What type of mount does it use?

It uses a 2 hole starter mount, with 114mm mount centres and 11.5mm mount hole diameter. For this listing, part number RXS803 is the main reference point. Listed voltage is 12. Published fitment references include HONDA CIVIC, HONDA CIVIC 1983, HONDA CIVIC 1984. These details should still be checked against the original unit before ordering.

Which unit make does it suit?

It suits Mitsuba applications. For this listing, part number RXS803 is the main reference point. Listed voltage is 12. Published fitment references include HONDA CIVIC, HONDA CIVIC 1983, HONDA CIVIC 1984. These details should still be checked against the original unit before ordering.

What warranty is listed?

The warranty is 3 years for passenger use and 1 year for commercial use. For this listing, part number RXS803 is the main reference point. Listed voltage is 12. Published fitment references include HONDA CIVIC, HONDA CIVIC 1983, HONDA CIVIC 1984. These details should still be checked against the original unit before ordering.