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Technical Specification
PRODUCT NUMBER 17793N30236N30403N32893N33217N17737NS6004S6007S6039S6045S6046S6055S6055PRS6061S6072
Voltage 121212241212121212121212121212
Design OSGRPMGRPMGROSGROSGROSGR
Manufacturer DensoDensoDensoDensoDensoDenso
Power 1.21.51.64.52.71.22.02.21.61.01.41.81.81.31.4
Rotation CWCCWCWCWCWCWCWCWCWCWCWCWCWCWCW
Teeth 91391211999999121299

Q 1. What does the WAI 19168N replace, and which engines does it fit?

A. The WAI 19168N is a direct replacement for Denso original-equipment starter motors, including references 228000-8850, 228000-8851 and 228000-8852. It also crosses to Cummins 3935200 and 3957595, Perkins 3935200 and 3957595, and further references across AD Kuhner, Farcom and Sando — 15 cross-references in total. On the vehicle side, the fitment record covers Cummins Misc. Engines (2007–2010). Use the selection widget or search our cross-referenced catalogue by OEM number or engine model to confirm suitability for your unit. Every fitment shown is backed by our Fit Guarantee.

Q 2. Does this starter motor replace Perkins part numbers 3935200 or 3957595?

A. Yes — Perkins 3935200 and Perkins 3957595 are both listed cross-references for the WAI 19168N. The full cross-reference set covers 15 references across Denso, Cummins, Perkins, AD Kuhner, Farcom and Sando. Search our catalogue by either Perkins number to verify fit, or ask Simon if you need further confirmation.

Q 3. What are the key specifications of the 19168N starter motor?

A. The WAI 19168N is a 24V, 4.5kW starter motor of Denso OSGR (Off-Set Gear Reduction) design. It features a 10-tooth drive pinion and clockwise rotation. It is supplied brand new — not remanufactured.

Q 4. What does OSGR mean, and why does it matter for this starter?

A. OSGR stands for Off-Set Gear Reduction. This design places a reduction gear set between the motor and the drive pinion, allowing the motor to spin faster and draw less current whilst still delivering sufficient torque to crank high-compression diesel engines. The WAI 19168N uses this Denso OSGR architecture as specified for the original fitment.

Q 5. Is this starter motor brand new or remanufactured?

A. The WAI 19168N is supplied brand new — it is not a remanufactured or reconditioned unit.

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.

Q 7. 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.

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