10-Tooth vs. 12-Tooth Pinion Drive – NSM1521

Possible visual discrepancy between NAPA Starter Motor and OE.

NSM1521 has a 12-tooth pinion drive, while the unit on the vehicle may have a 10-tooth pinion drive. This discrepancy is within standard specifications and will not affect vehicle performance. These units are fully interchangeable.

NSM1521 Technical Data

• Voltage: 12V
• Starter Output: 1.4kW
• Rotation Direction: Clockwise
• # of Teeth: 12
• # of Threaded Holes: 2
• # of Mounting Bores: 3
• Height: 67mm

Affected Applications

• Ford B-Max (12-18)
• Ford EcoSport (13-24)
• Ford Fiesta (02-18)
• Ford Fusion (02-12)
• Ford Transit (14-24)
• Mazda 2 (03-15)

OE Numbers

• 1483817
• 1670812
• 1680223
• 1734633
• 1762873
• 1858879
• Y401-18-400

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Do you have further queries? For in-person support, book a TechMate visit today! Contact the team on 01174 288090 or email [email protected]. All other technical support is available via our expert NAPA Technical Team on 03333 136597 or email [email protected].

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