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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 machines does the WAI 19859N fit?

A. This starter motor fits John Deere equipment across 7 confirmed applications, including the John Deere 450C LC, 744E, 744H, 744J, 824J, 824K, and 844K. Use the selection widget to match your exact make, model, and engine variant, or search our cross-referenced catalogue by OEM number or machine model. Every fitment shown is backed by our Fit Guarantee.

Q 2. Does this replace Denso part numbers 428000-0130 or 428000-0131?

A. Yes. The WAI 19859N replaces Denso 428000-0130, Denso 428000-0131, Denso 4280000130, Denso 4280000131, and the Denso Aftermarket reference DSN2073 — five Denso references in total, all confirmed against the cross-reference data for this part. There are 11 OE cross-references in all; search our catalogue by OEM number to verify your specific reference.

Q 3. Will this starter motor replace Perkins 2873K414?

A. Yes — Perkins 2873K414 is a confirmed OE cross-reference for the WAI 19859N. If you have sourced this part under that Perkins number, the WAI 19859N is the correct replacement.

Q 4. Does this replace any Caterpillar starter motor references?

A. Yes. The WAI 19859N cross-references to Caterpillar 2674624 and Caterpillar 2771833, both confirmed in the OE data for this part. Search our cross-referenced catalogue by either CAT number to confirm fitment for your machine.

Q 5. What are the key electrical and mechanical specifications?

A. The WAI 19859N is a 24-volt, 8.0kW starter motor built to the Denso PLGR (Permanent Magnet Gear Reduction) design. It operates with clockwise rotation and a 13-tooth drive pinion. It is supplied brand new — not remanufactured.

Q 6. What does PLGR mean and why does it matter?

A. PLGR stands for Permanent Magnet Gear Reduction. This design uses a permanent magnet field and an internal gear reduction stage, which keeps the unit compact while delivering high cranking torque. It is well established in plant and loader applications for its reliable cold-start behaviour and comparatively low current draw.

Q 7. Are there John Deere OE part numbers this starter replaces?

A. Yes. The confirmed John Deere OE cross-references for the WAI 19859N are RE506826, RE515895, and RE522852. All three are included in the 11 total cross-references on file for this part.

Q 8. Is this a brand-new or remanufactured starter motor?

A. The WAI 19859N is supplied brand new. It is not a remanufactured or exchange unit, so no core return is required.

Q 9. 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 10. 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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