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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 machines does the WAI 17612N starter motor fit?

A. The 17612N is confirmed for Case and Clark applications — specifically the Case 1835C (1987–1998) and Clark Various Lift Truck (1980–1999). Two fitments are currently listed across these two makes. To verify your exact model, engine variant or serial number, use the selection widget on this page or search our cross-referenced catalogue by machine model. Every fitment shown is backed by our Fit Guarantee.

Q 2. Does this starter motor replace the Denso 128000-5590?

A. Yes. The WAI 17612N directly replaces Denso original-equipment references 128000-5590 and 1280005590. It also cross-references Sando 60402180, Sando 60402181, AD Kuhner 254513, IHC 1959930C1, TELEDYNE TMD-13M503, and TELEDYNE TMD-27M503 — 8 OE references in total. If you have an OE number from your machine, search our cross-referenced catalogue to confirm the match.

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

A. The 17612N is a 12V, 1.4kW unit built to the Denso OSGR (Off-Set Gear Reduction) design. It runs clockwise rotation and carries a 10-tooth pinion. It is supplied brand new, not remanufactured. Full specification figures are shown in the table within this listing.

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

A. OSGR stands for Off-Set Gear Reduction. In this design, the reduction gear sits offset from the motor axis rather than in-line with it, resulting in a shorter overall unit length compared with a direct-drive starter of equivalent power. This makes the OSGR format common in compact plant machinery and lift trucks where under-bonnet space is constrained, and it is the original design specified by Denso for the applications this part serves.

Q 5. Will this fit a Clark forklift?

A. Yes — the 17612N is confirmed for the Clark Various Lift Truck series, covering the production range 1980 to 1999. To check whether your specific Clark model and engine variant fall within the listed applications, use the selection widget or search by OEM number. Our Fit Guarantee covers every cross-reference and fitment shown.

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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