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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: 18644N
The WAI 18644N is a brand-new 12V Mitsuba PMDD starter motor. It is replacing Remy RS41243 and cross-referenced against Eton and Polaris original-equipment numbers. PMDD (Permanent Magnet Direct Drive) design delivers reliable engagement with a compact, lightweight construction suited to the applications it serves.
Built to Mitsuba specification, this starter motor operates at 12V with counter-clockwise (CCW) rotation. The permanent magnet direct drive architecture eliminates the conventional field-wound assembly, reducing internal friction and providing consistent cranking performance. Being brand new, it carries no residual wear from previous service.
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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 | Mitsuba |
| Design | PMDD |
| Voltage | 12V |
| Rotation | CCW |
| 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 | 19016N | 32568N | 32734N | MS291 | MS84 | 30584N | MS399 | S4030 | S4042 | S9002PR | S9020 | S9033 | S9406S | S9440P | 17184N |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | |
| Design | PMOSGR | OSGR | PLGR | PLGR | PLGR | DD | |||||||||
| Manufacturer | Mitsuba | Poongsung | Mitsuba | Mahle | Mahle | Mahle | Electroprecizia | ||||||||
| Power | 1.6 | 2.0 | 4.2 | 4.2 | 3.2 | 3.0 | 2.0 | 2.1 | 1.4 | 2.2 | 1.2 | 2.2 | 3.0 | ||
| Rotation | CCW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW | ||
| Teeth | 9 | 9 | 10 | 11 | 10 | 10 | 11 | 19 | 12 | 11 | 9 | 11 | 9 | ||
A. The WAI 18644N cross-references 5 OE numbers in total. The highest-demand reference is Remy RS41243. It also replaces Eton 650511 and Polaris original-equipment references 0450533, 0451692 and 0453848. Match your original part number against these to confirm fitment, or search our cross-referenced catalogue by OEM number to verify compatibility.
A. Detailed vehicle and machine fitment data is not published for this part in our current catalogue. The most reliable route is to match by OE cross-reference number — this unit covers Remy RS41243, Eton 650511, and Polaris 0450533, 0451692 and 0453848. If your service documentation shows one of those numbers, this is the correct replacement. You can also search our cross-referenced catalogue by machine model, or ask Simon for further guidance. Every fitment confirmed is backed by our Fit Guarantee.
A. The WAI 18644N operates at 12V and turns counter-clockwise (CCW). It uses a Permanent Magnet Direct Drive (PMDD) design manufactured by Mitsuba, and is supplied brand new.
A. PMDD stands for Permanent Magnet Direct Drive. This design uses permanent magnets in place of conventional field windings, producing a lighter, more compact unit. The direct drive arrangement engages the ring gear without an intermediate reduction gear stage. The WAI 18644N uses this Mitsuba PMDD configuration.
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 — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.
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