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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £4.99 | 1 to 2 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
Product Number: 16644N
The WAI 16644N is a brand-new 12V 4kW starter motor. It is built to Denso DD specification, designed to replace original-equipment Denso units across 36 John Deere applications. It is a direct OE-equivalent replacement for Denso references 028000-3970, 028000-3971, 0280003970, 0280003971 and 9702800397, as well as John Deere numbers AR63341, SE01421, SE501415, TY25961, TY6613, TY6712 and others across 17 cross-references in total — making it straightforward to match against your existing part number.
The motor delivers clockwise rotation with a 10-tooth drive pinion, matching the Denso DD design geometry of the original fitment. Supplied as a complete, ready-to-install unit, it covers a broad spread of John Deere construction and agricultural machinery from the mid-1970s through to the mid-1990s — including the 340D, 344E, 410B, 410C, 415B, 440C, 440D and 4276D/T among others.
Sourced from WAI, a specialist remanufacturing and new-parts supplier to the automotive and plant trade, this is a brand-new unit rather than a remanufactured exchange, so there is no surcharge core to return.
About PartsForMachines:
PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
| Type | Starter Motor |
|---|---|
| Manufacturer | Denso |
| Design | DD |
| Voltage | 12V |
| Power | 4kW |
| Rotation | CW |
| Teeth | 10 |
| Condition | Brand New |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Exploring the WAI Starter Motor and Alternator at Partsformachines.com Introduction: In the Plant and Agriculture sector, a starter motor and alternator are parts that ensure a machine runs smoothly. At Partsformachines.com we have partnered with WAI, a global manufacturer of auto and plant machinery parts to off...
Standard Delivery: £4.99
Delivery Estimate: 1 to 2 working days
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| Technical Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | 17793N | 30236N | 30403N | 32893N | 33217N | 17737N | S6004 | S6007 | S6039 | S6045 | S6046 | S6055 | S6055PR | S6061 | S6072 |
| Voltage | 12 | 12 | 12 | 24 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Design | OSGR | PMGR | PMGR | OSGR | OSGR | OSGR | |||||||||
| Manufacturer | Denso | Denso | Denso | Denso | Denso | Denso | |||||||||
| Power | 1.2 | 1.5 | 1.6 | 4.5 | 2.7 | 1.2 | 2.0 | 2.2 | 1.6 | 1.0 | 1.4 | 1.8 | 1.8 | 1.3 | 1.4 |
| Rotation | CW | CCW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW |
| Teeth | 9 | 13 | 9 | 12 | 11 | 9 | 9 | 9 | 9 | 9 | 9 | 12 | 12 | 9 | 9 |
A. The WAI 16644N replaces Denso 028000-3970, 028000-3971, 0280003970, 0280003971 and 9702800397 — five Denso references confirmed in the cross-reference data for this part. A total of 17 cross-references are listed, covering Denso, John Deere, AD Kuhner, BTS Turbo, Farcom and Sando numbers. Search our cross-referenced catalogue by any of these OEM numbers to confirm the match, or ask Simon if you need help.
A. The WAI 16644N fits 36 John Deere applications, including the 340D (1984–1988), 344E (1988–1995), 410B (1971–1986), 410C (1985–1992), 415B (1983–1986), 440C (1976–1984), 440D (1984–1992) and 4276D/T (1982–1986). Use the selection widget to match your specific model and engine variant, or search by OEM number. Every fitment shown is backed by our Fit Guarantee.
A. Yes — the WAI 16644N cross-references John Deere AR63341, SE01421, SE501415, TY25961, TY6613, TY6712 and TY6613 among others listed for this part. If you are matching from a John Deere parts manual, search our catalogue by that OE number to confirm the fitment directly.
A. It is a 12V, 4kW unit built to the Denso DD design, with clockwise rotation and a 10-tooth drive pinion. It is supplied brand new — not remanufactured — so there is no core surcharge or exchange return required.
A. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.
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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