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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. Which Genie Industries machines does the WAI 19104N fit?

A. This starter motor fits 7 Genie Industries applications, including the T120C, T180C, T180J, T230J, T240C, T70C, and T90C (all variants). To confirm your specific machine and engine variant, use the selection widget or search the cross-referenced catalogue by model. Every fitment is backed by our Fit Guarantee.

Q 2. Does this starter motor replace Cummins 3971615?

A. Yes. The WAI 19104N is a direct replacement for Cummins 3971615, along with Cummins 3971610, 3971613, and 3971614 — 4 Cummins references in total. It also cross-references 11 Denso OE numbers including 428000-2870, 428000-2900, and 428000-2910, plus references from AD Kuhner and Sando, giving 19 OE cross-references in total.

Q 3. Which Denso part numbers does the WAI 19104N replace?

A. It replaces 11 Denso OE references including 428000-2870, 428000-2900, 428000-2910, 428000-2911, 428000-2920, 4280002910, 4280002911, 4280002920, 428080-2910, 428080-2920, and Denso Aftermarket DSN2049. Quote your existing Denso number when ordering to confirm the match, or search the catalogue by OEM number.

Q 4. What are the key specifications of this starter motor?

A. The WAI 19104N is a 12V, 2.7kW starter motor of Denso OSGR (Off-Set Gear Reduction) design. It has a 10-tooth pinion and clockwise rotation, matching the original Denso specification. It is supplied brand new.

Q 5. What does OSGR mean, and why does it matter when fitting this starter?

A. OSGR stands for Off-Set Gear Reduction. In this design, the drive gear is offset from the motor armature via a reduction gear train, which allows a compact, high-torque output suited to the engine sizes found in Genie Industries boom lifts running Cummins power units. When replacing, confirm your existing unit is also OSGR design — the 10-tooth count and clockwise rotation must match your ring gear.

Q 6. Is this a brand-new unit or a remanufactured one?

A. The WAI 19104N is supplied brand new — it is not remanufactured or reconditioned. It carries no prior service history.

Q 7. Are there any other OE cross-references for this part beyond Denso and Cummins?

A. Yes. In addition to 11 Denso and 4 Cummins references, the 19-reference cross-reference set also includes AD Kuhner 254396 and 254396M, and Sando 60403320 and 60403321. Cross-reference data is not published beyond the 19 references confirmed for this part.

Q 8. Can I ask questions about this product before ordering?

A. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.

Q 9. 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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