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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: 18218N
The WAI 18218N is a brand-new 12V 0.9kW PMDD starter motor. It is built to Hitachi specification, designed as a direct replacement for Hitachi original-equipment units including S114-656, S114-656A, and S114203. It also cross-references Yanmar OE numbers including 119865-77012 and 11986577012, making it a well-supported choice for Yanmar compact diesel applications. The WAI 18218N covers Yanmar models including the 3TN66 and 3TNA68, with fitment spanning 1995 to 2006 across three Yanmar applications in total.
The PMDD (Permanent Magnet Direct Drive) design eliminates the field winding found in conventional starters, delivering reliable cranking torque from a compact, lightweight unit. With clockwise rotation and a 9-tooth pinion, the unit is built to match original engagement geometry precisely — no modification required. At 0.9kW, output is sized correctly for the small-displacement Yanmar diesel engines in this fitment range.
The WAI 18218N carries 13 OE and aftermarket cross-references in total, including Hitachi, Yanmar, Remy RS41157, and Unipoint STR3803, giving workshop buyers and fleet operators multiple routes to confirm part identity against their own records or the machine's service documentation.
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| Type | Starter Motor |
|---|---|
| Manufacturer | Hitachi |
| Design | PMDD |
| Voltage | 12V |
| Power | 0.9kW |
| Rotation | CW |
| Teeth | 9 |
| 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 | 18279N | 17927N | 18328N | 31644N | S2001 | S2003 | S2005 | S2007 | S2008 | S2019 | S2027 | S2031 | S2041 | S2043 | S2044 |
| Voltage | 12 | 12 | 12 | 12 | 12 | 24 | 12 | 12 | 24 | 12 | 12 | 12 | 12 | 12 | 12 |
| Design | PMGR | PMGR | PMGR | ||||||||||||
| Manufacturer | Hitachi | Hitachi | Hitachi | Hitachi | |||||||||||
| Power | 1.4 | 1.7 | 1.4 | 1.4 | 3.5 | 2.5 | 2.0 | 4.0 | 0.9 | 1.4 | 0.8 | 2.3 | 2.3 | 2.5 | |
| Rotation | CW | CW | CW | CW | CW | CW | CW | CCW | CW | CW | CCW | CW | CW | CW | |
| Teeth | 9 | 10 | 11 | 13 | 9 | 9 | 9 | 11 | 8 | 11 | 8 | 9 | 9 | 15 | |
A. The WAI 18218N replaces Hitachi original-equipment starter motors including S114-656, S114-656A, S114203, S114230, S114656, and S114656A — six Hitachi references in total. If you are cross-referencing from a Hitachi number, these are listed in the catalogue. Use the selection widget or search our cross-referenced catalogue by OEM number to confirm your match, or ask Simon.
A. The WAI 18218N fits Yanmar models including the 3TN66 and 3TNA68, covering the 1995–2006 period — three Yanmar applications in total. It also cross-references Yanmar OE numbers including 119865-77012, 11986577012, 11986577013, 12407077010, and 52416077011. Use the selection widget to match your exact Yanmar model and engine variant, or search by Yanmar OE number. Fitment is backed by our Fit Guarantee.
A. Yes. Remy RS41157 is listed as a cross-reference for the WAI 18218N. If your records or machine documentation show RS41157, this WAI unit is the confirmed equivalent. Search our cross-referenced catalogue by that number or ask Simon to verify against your application.
A. The WAI 18218N uses a PMDD (Permanent Magnet Direct Drive) design. Unlike conventional starters with wound field coils, PMDD units use permanent magnets, which reduces weight and internal complexity. The unit produces 0.9kW at 12V with clockwise rotation and a 9-tooth pinion, matching the original Hitachi specification precisely.
A. The WAI 18218N carries 13 OE and aftermarket cross-references across Hitachi, Yanmar, Remy, and Unipoint. The full list is searchable in our cross-referenced catalogue. You can also search by any of the verbatim numbers shown in the specifications above, or ask Simon to look up your specific number.
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. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.
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