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Technical Specification
PRODUCT NUMBER 19016N32568N32734NMS291MS8430584NMS399S4030S4042S9002PRS9020S9033S9406SS9440P17184N
Voltage 1212121212121212121212121212
Design PMOSGROSGRPLGRPLGRPLGRDD
Manufacturer MitsubaPoongsungMitsubaMahleMahleMahleElectroprecizia
Power 1.62.04.24.23.23.02.02.11.42.21.22.23.0
Rotation CCWCWCWCWCWCWCWCWCWCWCWCWCW
Teeth 9910111010111912119119

Q 1. Which original-equipment starter motors does the WAI 19578N replace?

A. The WAI 19578N cross-references five OE part numbers: Eagle 11608A906, Eagle Power 11608-A90-6, BMS 30552-C7-12, Pasco S1090078, and Powerite Automotive 19578. If your machine is currently fitted with any of these units, the 19578N is the direct replacement. To verify fitment for your specific machine model, search our cross-referenced catalogue by OEM number or ask Simon — every OE cross-reference shown is backed by our Fit Guarantee.

Q 2. What are the key specifications I need to check before fitting this starter?

A. The WAI 19578N operates at 12 volts, uses a nine-tooth pinion, and rotates clockwise (CW). The design is PMDD — Permanent Magnet Direct Drive. Before ordering, confirm that your machine's ring gear tooth count, rotation direction, and system voltage match these figures. If you are unsure, search our catalogue by OEM number or ask Simon with your engine details.

Q 3. Is this starter motor new or reconditioned?

A. The WAI 19578N is supplied brand new — not reconditioned or remanufactured. It is a fresh unit straight from WAI's rotating-electrics manufacturing operation.

Q 4. What does PMDD mean, and does it matter for my application?

A. PMDD stands for Permanent Magnet Direct Drive. Unlike wound-field starter motors, a PMDD unit uses permanent magnets in the field housing rather than energised coils, resulting in a compact, lightweight assembly. It is important to match this design type to your original unit — if your machine was fitted with a PMDD starter (such as the Eagle, BMS, Pasco, or Powerite units this replaces), the WAI 19578N is a compatible like-for-like swap.

Q 5. How do I confirm this part fits my vehicle or machine?

A. Use the selection widget to match your make, model and engine, or search our cross-referenced catalogue by OEM number, machine model or equivalent part across brands. If your vehicle is not listed, ask Simon. Every fitment shown is backed by our Fit Guarantee.

Q 6. Is this part covered by your Fit Guarantee?

A. Yes. Every vehicle and OE cross-reference shown for this part is checked against manufacturer data and backed by our Fit Guarantee. If it is not right, our Fit Guarantee or hassle-free returns have you covered.

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