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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: 18985N
The WAI 18985N is a brand-new 12V 0.8kW starter motor. It is built to the Denso DD design, supplied as a direct replacement for original-equipment units carrying Denso references 228000-7850, 228000-7851 and related numbers, as well as Honda OE references including 31200-ZJ1-8410M, 31200-ZJ1-842 and 31200ZJ1841. With 13 OE cross-references in total — spanning Denso, Honda, Remy and Cub Cadet — this unit covers a focused but well-defined range of compact plant and construction equipment.
Designed to the counter-clockwise rotation characteristic of the Denso DD pinion-engagement system, the 18985N carries a 12-tooth drive gear and delivers 0.8kW of cranking power. These figures are engineered to match the original specification, so the unit installs without modification where the OE part was fitted. Every unit leaves the factory brand new — no remanufactured or reconditioned components.
Verified fitment includes MQ generators (9700 and JWN Series), the Stone WP3100, and the Wacker Roller RD-11A — four confirmed applications across three makes. If your machine is not listed here, search the cross-referenced catalogue by OEM number or machine model, or ask Simon to confirm suitability before ordering.
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| Type | Starter Motor |
|---|---|
| Manufacturer | Denso |
| Design | DD |
| Voltage | 12V |
| Power | 0.8kW |
| Rotation | CCW |
| Teeth | 12 |
| 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 18985N has four confirmed applications across three makes: MQ 9700 (All), MQ JWN Series (All), Stone WP3100 (All), and Wacker Roller RD-11A (All). If your machine is not listed, search the cross-referenced catalogue by OEM number or machine model, or ask Simon to confirm compatibility. Every fitment shown is backed by our Fit Guarantee.
A. Yes. The WAI 18985N carries 13 OE cross-references in total. The Denso references on this part include 228000-7850, 228000-7851, 2280007850, 2280007851 and 9722809785. If your unit carries one of these numbers, this is the confirmed replacement. Search the cross-referenced catalogue by OEM number to verify your specific reference.
A. Honda references on this part include 31200-ZJ1-8410M, 31200-ZJ1-842, 31200ZJ1841, 31200ZJ18410M, 31200ZJ1842 and DDWD8 — six Honda references in total. Use these numbers to confirm you have the correct unit before ordering, or ask Simon if you are unsure.
A. Yes. The Remy reference on this part is RS41299, and the Cub Cadet reference is 31200-ZJ1-841. These are verbatim cross-references confirmed for the 18985N. Search the catalogue by either number to verify fitment.
A. The 18985N is a 12V, 0.8kW unit built to the Denso DD design with counter-clockwise (CCW) rotation and a 12-tooth drive gear. It is supplied brand new — not remanufactured. These figures match the original-equipment specification for the applications listed.
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.
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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