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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. Does this starter motor replace Kubota part numbers 1J730-63010 and 1J730-63011?

A. Yes. The WAI 30579N is a direct replacement for Kubota OE references 1J730-63010, 1J730-63011, 1J73063010 and 1J73063011. It also cross-references to Denso 428000-6940. Cross-reference data is not available beyond these five listed references. To confirm fitment to your specific machine, use the selection widget or search our cross-referenced catalogue by OEM number or machine model — every fitment shown is backed by our Fit Guarantee.

Q 2. Which Denso reference does this WAI starter motor cross to?

A. The WAI 30579N carries one Denso cross-reference: 428000-6940. This is the only Denso reference on file for this part. If you are identifying your existing unit by its Denso number, search our catalogue by that reference or ask Simon to confirm suitability.

Q 3. What are the key electrical and mechanical specifications of the WAI 30579N?

A. The 30579N operates at 12V with a 2.0kW power output. It uses the Denso OSGR (Over-running Sprag-type Gear Reduction) design, has an 8-tooth pinion, and rotates clockwise (CW) as viewed from the pinion end. It is supplied brand new.

Q 4. Is this a new starter motor or a remanufactured unit?

A. The WAI 30579N is brand new — it has not been remanufactured or reconditioned. It is built to meet the original Denso OSGR specification for the Kubota applications it serves.

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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