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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: 31644N
The WAI 31644N is a brand-new 12V starter motor. It is built as a direct replacement for HITACHI original-equipment units, including references HST-114878B and S114-870. Manufactured to HITACHI specification, it is supplied new — not remanufactured — and carries the Lester reference 31644 for straightforward cross-referencing against purchasing and workshop records.
As a WAI-manufactured unit, the 31644N is engineered to meet original design tolerances for voltage, engagement geometry and output, ensuring reliable cold-start performance in the applications for which HITACHI originally supplied these motors. The brand-new condition means no worn commutators, brushes or drive assemblies — common failure points in aged or reconditioned units.
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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 |
|---|---|
| Voltage | 12V |
| Manufacturer | HITACHI |
| Lester | 31644 |
| 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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Delivery Estimate: 1 to 2 working days
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| Technical Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | 18279N | 17927N | 18328N | S2001 | S2003 | S2005 | S2007 | S2008 | S2019 | S2027 | S2031 | S2041 | S2043 | S2044 | S2045 |
| Voltage | 12 | 12 | 12 | 12 | 24 | 12 | 12 | 24 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Design | PMGR | PMGR | PMGR | ||||||||||||
| Manufacturer | 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 | 2.0 |
| Rotation | CW | CW | CW | CW | CW | CW | CW | CCW | CW | CW | CCW | CW | CW | CW | CW |
| Teeth | 9 | 10 | 11 | 13 | 9 | 9 | 9 | 11 | 8 | 11 | 8 | 9 | 9 | 15 | 9 |
A. The WAI 31644N replaces HITACHI original-equipment starter motors, with cross-references including HITACHI HST-114878B and HITACHI S114-870 — 2 OE references in total. Search our cross-referenced catalogue by either of those OE numbers to confirm fitment for your machine, or ask Simon if you need further guidance. Fitment confirmed via our catalogue is backed by our Fit Guarantee.
A. The Lester reference for this unit is 31644. The Lester numbering system is an industry-standard cross-reference used by motor factors, agricultural dealers and workshops throughout the UK to identify starter motors across manufacturers. You can use Lester 31644 alongside the HITACHI OE numbers to cross-check fitment in your own parts catalogue or purchasing system.
A. It is brand new. The WAI 31644N is supplied in new condition — not remanufactured or reconditioned. This means all internal components including the commutator, brushes and drive assembly are new, with no wear history from a previous service life.
A. The WAI 31644N operates at 12V, consistent with the HITACHI original-equipment specification 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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