Mahle Starter Motor 12V 9 Tooth CW MS280

The Mahle MS280 is a new 12V starter motor with a 9 tooth pinion and clockwise rotation. It is listed as an Original Equipment part and carries a one year warranty, which makes the key identifiers easy to confirm before ordering: 12 volts, 3.0kW power rating, and part number MS280.

This starter is built with a 3 hole mount arrangement and 127mm mount centres A, with 90mm mount centres C and B. The overall length is 334mm, the flange diameter is 89mm, and the pinion diameter is 34mm, so it is important to compare the physical dimensions with the unit being replaced rather than relying on appearance alone.

The unit is identified as Mahle brand, new condition, and suits unit make Mahle. The OEM number listed is 11130751. For older Mercedes-Benz MB-Trac and Unimog applications, the safest approach is to match the part number, mounting pattern, tooth count, rotation, and voltage before purchase.

Key Features

• Original Equipment part
• New starter motor
• 12V unit
• 9 tooth pinion
• Clockwise rotation
• 3 hole starter mount

Specifications

• Part number: MS280
• OEM number: 11130751
• Brand: Mahle
• Product type: Starter Motor
• Voltage: 12V
• Power rating: 3.0kW
• Rotation: CW
• Number of teeth: 9

Confirmed application information

• Mercedes-Benz MB-Trac
• Mercedes-Benz MB-Trac 1976
• Mercedes-Benz MB-Trac 1977
• Mercedes-Benz MB-Trac 1978
• Mercedes-Benz MB-Trac 1979
• Mercedes-Benz MB-Trac 1980
• Mercedes-Benz MB-Trac 1981
• Mercedes-Benz MB-Trac 1982

Application and Buying Notes

When checking this starter against the old unit, focus first on the verified identifiers: MS280, OEM number 11130751, 12V, 9 tooth, and clockwise rotation. Those details need to match the vehicle’s starter requirements before the mount pattern and dimensions can be used as the final cross-check.

The mounting layout matters on this unit. It uses a 3 hole mount with 127mm mount centres A and 90mm mount centres B and C, plus an 11mm mount hole diameter. If the old starter has a different flange diameter, bore arrangement, or overall length, do not assume it will interchange.

Power rating is listed at 3.0kW, which is a useful check when comparing replacement starters for the same application. If the vehicle has been modified, or if the old starter carries a different output rating, compare all listed measurements and the tooth count carefully before ordering.

For MB-Trac and Unimog applications, verify the engine and starter details rather than relying on model name alone. The fitment information points to Mercedes-Benz MB-Trac across 1976 to 1986 and Mercedes-Benz Unimog applications, but the correct match still depends on the part number, rotation, voltage, and mounting arrangement on the vehicle fitted with the starter.

The pinion at rest is 47mm and the pinion diameter is 34mm, so physical clearance is another point worth checking where space around the bellhousing is tight. These measurements are especially useful if the replacement needs to match an existing starter that has limited installation room.

This is a new starter motor and is supplied as a single each item. If the vehicle has previously had a repair, remanufactured unit, or a non-standard replacement fitted, compare the old unit line by line with the measurements above before making a final decision.

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 MS280 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 127mm, Mount Centres C 90mm, Number of Teeth 9, Pinion at Rest 47mm, Power Rating 3.0kW, Suits Unit Make Mahle, Item Type Starter Motor.

Additional published details for cross-checking include Starter Mount Type 3 Hole, Bore O 1 10.9, Tooth Pitch 14.36, Mounting points diameter 127.0, Packaging width 21.50, Net Weight 14240, Product Group 1 ROTATING ELECTRICAL, Part No. MS280, Brand MAHLE, Description Mahle Starter Motor 12V 9Th CW.

Mahle Starter Motor 12V 9Th CW. Part number MS280 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 MS280, 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 MERCEDES-BENZ MB-TRAC, MERCEDES-BENZ MB-TRAC 1976, MERCEDES-BENZ MB-TRAC 1977, MERCEDES-BENZ MB-TRAC 1978. 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 fitment by matching the part number MS280, OEM number 11130751, 12V specification, 9 tooth clockwise rotation, and the 3 hole mounting dimensions against the unit already fitted to the vehicle.

FAQ

What is the key part number for this starter motor?

The listed part number is MS280. The OEM number provided is 11130751.

What voltage and rotation does this starter motor have?

It is a 12V starter motor with clockwise rotation.

How many teeth does the pinion have?

The pinion has 9 teeth.

What mounting setup does this starter use?

It uses a 3 hole starter mount with 127mm mount centres A and 90mm mount centres B and C. The mount hole diameter is 11mm.

What applications are listed for this starter motor?

The fitment information lists Mercedes-Benz MB-Trac, including model years 1976 through 1986, and Mercedes-Benz Unimog applications.

Is this a new or remanufactured starter motor?

It is listed as new.