Valeo Starter Motor 12V 9 Tooth CW 1.3KW Part No. 438079

This Valeo starter motor is a new 12V unit with a 1.3kW power rating, 9 teeth, clockwise rotation, and part number 438079. It is listed as a dry-clutch starter motor with a 2-hole mount type, so the physical layout matters as much as the electrical rating when checking replacement suitability.

The key dimensions are specific: 99mm mount centres, 70mm flange diameter, 48mm nose cone length, 200mm overall length, 25mm pinion diameter, and 8mm mount hole diameter. The pinion at rest is 14mm, and the unit weighs 2.91kg, which can help confirm you are comparing against the correct starter before ordering.

This is a Valeo-branded starter motor sold as one each, with a one-year warranty. The note advises that 9 and 10 tooth units will interchange, but that still does not replace a proper part-number and application check against the vehicle already fitted.

Key Features

• New starter motor
• 12V electrical system
• 9 tooth pinion
• Clockwise rotation
• 1.3kW power rating
• 2-hole starter mount

Specifications

• Brand: Valeo
• Part No.: 438079
• Product type: Starter motor
• Voltage: 12V
• Power rating: 1.3kW
• Rotation: CW
• Number of teeth: 9
• Mount centres A: 99mm

Fitment guidance

• MERCEDES-BENZ A-CLASS
• MERCEDES-BENZ A-CLASS 1999
• MERCEDES-BENZ A-CLASS 2000
• MERCEDES-BENZ A-CLASS 2001
• MERCEDES-BENZ A-CLASS 2002
• MERCEDES-BENZ A-CLASS 2003
• MERCEDES-BENZ A-CLASS 2004
• MERCEDES-BENZ A-CLASS 2005

Application and Buying Notes

For this starter motor, the most important checks are the part number 438079, the 12V rating, the 9 tooth pinion, and the clockwise rotation. The mounting arrangement also needs to match, including the 2-hole mount type, 99mm mount centres, 70mm flange diameter, and 8mm mount holes.

The listed note says 9 and 10 tooth units will interchange, which can be useful when comparing a removed starter against replacement options. Even so, tooth count alone is not enough to confirm fitment; the nose cone length of 48mm, overall length of 200mm, and pinion at rest of 14mm should also line up with the original unit.

The supplied fitment information includes Mercedes-Benz A-Class and B-Class applications, with A-Class references spanning 1999 through 2009. Use that as a starting point only, then verify the vehicle details, the original starter number, and the dimensions on the unit already fitted to the car.

The unit is new and carries a one-year warranty, but warranty cover does not remove the need to confirm the correct application before installation. Checking the starter side by side with the old unit remains the safest way to avoid a mismatch on rotation, mounting, or pinion engagement.

If you are comparing against another Valeo starter, the brand and product group alone are not enough. Match the physical specs, tooth count, voltage, and part number together, especially where a vehicle may have had more than one starter option across its production range.

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 438079 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 One Year, Mount Centres A 99mm, Nose Cone Length 48mm, Overall Length 200mm, Pinion Diameter 25mm, Rotation CW, Voltage 12, New / Reman. New.

Additional published details for cross-checking include Wet / Dry Clutch Dry, Clamp NO, Product Group 2 STARTER MOTORS, Part No. 438079, Brand VALEO, Description Valeo Starter Motor 12V 9Th CW, Flange Diameter 70mm, Mount Hole Diameter 8, Number of Teeth 9.

Valeo Starter Motor 12V 9Th CW. Part number 438079 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 438079, 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 compatibility using part number 438079, the 12V specification, 9 tooth CW configuration, and the mounting and dimensional details listed above before ordering. Vehicle fitment references are a guide only and should be checked against the starter already fitted to the vehicle.

FAQ

What is the part number for this starter motor?

The part number listed is 438079. For this listing, part number 438079 is the main reference point. Listed voltage is 12. Published fitment references include MERCEDES-BENZ A-CLASS, MERCEDES-BENZ A-CLASS 1999, MERCEDES-BENZ A-CLASS 2000. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured starter motor?

This unit is listed as new. For this listing, part number 438079 is the main reference point. Listed voltage is 12. Published fitment references include MERCEDES-BENZ A-CLASS, MERCEDES-BENZ A-CLASS 1999, MERCEDES-BENZ A-CLASS 2000. These details should still be checked against the original unit before ordering.

What voltage is this starter motor?

It is a 12V starter motor. For this listing, part number 438079 is the main reference point. Listed voltage is 12. Published fitment references include MERCEDES-BENZ A-CLASS, MERCEDES-BENZ A-CLASS 1999, MERCEDES-BENZ A-CLASS 2000. These details should still be checked against the original unit before ordering.

What rotation does it have?

The starter motor is clockwise rotation, listed as CW. For this listing, part number 438079 is the main reference point. Listed voltage is 12. Published fitment references include MERCEDES-BENZ A-CLASS, MERCEDES-BENZ A-CLASS 1999, MERCEDES-BENZ A-CLASS 2000. These details should still be checked against the original unit before ordering.

What tooth count does this starter use?

It has 9 teeth, and the note states that 9 and 10 tooth units will interchange. For this listing, part number 438079 is the main reference point. Listed voltage is 12. Published fitment references include MERCEDES-BENZ A-CLASS, MERCEDES-BENZ A-CLASS 1999, MERCEDES-BENZ A-CLASS 2000. These details should still be checked against the original unit before ordering.

What vehicle fitment is supplied with this part?

The supplied fitment references include Mercedes-Benz A-Class and B-Class applications, with A-Class references shown across 1999 to 2009. Final fitment should still be confirmed against the vehicle and the original starter part number. For this listing, part number 438079 is the main reference point. Listed voltage is 12. Published fitment references include MERCEDES-BENZ A-CLASS, MERCEDES-BENZ A-CLASS 1999, MERCEDES-BENZ A-CLASS 2000. These details should still be checked against the original unit before ordering.