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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: 17387N
The WAI 17387N is a brand-new 12V 2.0kW starter motor. It is built to Denso OSGR specification, replacing original-equipment numbers including Denso 128000-2070 and John Deere AT110818. It is designed for compact diesel applications across John Deere and Yanmar machinery, covering three confirmed fitments including the John Deere 25 Compact, John Deere 30, and Yanmar 3TN78L.
The OSGR (Over-running Sprag Clutch Reduction) drive design delivers a controlled, high-torque crank without the gear wear associated with direct-drive units. With 15 drive teeth and clockwise rotation, the pinion meshes cleanly with the ring gear before engagement load is applied — a design that protects both the starter and the flywheel over repeated start cycles. At 2.0kW output on a 12V system, it provides confident cranking authority for the small-displacement diesel engines found in these compact machines.
Supplied brand new — not remanufactured — the 17387N crosses directly to six OE and cross-reference numbers across the Denso, John Deere, and Yanmar catalogues.
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| Type | Starter Motor |
|---|---|
| Manufacturer | Denso |
| Design | OSGR |
| Voltage | 12V |
| Power | 2.0kW |
| Rotation | CW |
| Teeth | 15 |
| 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...
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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. Yes. The WAI 17387N directly replaces Denso OE numbers 128000-2070, 1280002070, and 9712809207, as well as John Deere AT110818 and Yanmar references 171353-77010 and 17135377010 — six cross-references in total. Use the selection widget or search our cross-referenced catalogue by OEM number to verify fitment for your machine, and every reference shown is backed by our Fit Guarantee.
A. The 17387N is confirmed to fit the John Deere 25 Compact (1986–1989), John Deere 30 (all years), and Yanmar 3TN78L (1984–1991) — three applications across two makes. Use the selection widget on this page to match by make, model, and engine, or ask Simon if your machine is not listed.
A. It is supplied brand new — not remanufactured or exchange. The WAI 17387N is a new-build unit to Denso OSGR specification.
A. OSGR stands for Over-running Sprag Clutch Reduction. The reduction gearing multiplies torque at the pinion before the overrunning clutch engages the ring gear, which reduces wear on both the starter and flywheel compared with direct-drive designs. This makes it well suited to the small-displacement diesel engines found in the compact John Deere and Yanmar machines this unit fits.
A. The 17387N operates on a 12V system and delivers 2.0kW of cranking power. It has a 15-tooth pinion drive with clockwise rotation, consistent with the Denso OSGR design it replaces.
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.
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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