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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: 21658N
The WAI 21658N is a brand-new 12V 170A alternator. It is built to replace LETRIKA (ISKRA) original-equipment units, including references 11.203.444, 11.204.420, 11.204.969 and eight further LETRIKA (ISKRA) part numbers — 11 cross-references in total. Designed for demanding plant and agricultural applications, it delivers a substantial 170-amp output and suits machines where reliable, high-capacity charging is essential.
Constructed to an IR/IF (internal regulator, internally fan-cooled) design, the 21658N features clockwise rotation and an S8 pulley, matching the original LETRIKA (ISKRA) specification precisely. Being brand new rather than remanufactured means there is no core charge and no uncertainty over the condition of internal windings or the regulator. The Lester reference for this unit is 21658.
In terms of fitment, this alternator is confirmed for JCB machines including the Hydradig 110W (2017–2021) and TM420 (2017–2021) — two applications in total within the WAI-verified dataset.
About PartsForMachines:
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 | Alternator |
|---|---|
| Voltage | 12V |
| Output | 170A |
| Rotation | CW |
| Design | IR/IF |
| Manufacturer | LETRIKA (ISKRA) |
| Pulley | S8 |
| Lester | 21658 |
| Condition | Brand New |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
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| Technical Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | 13152N | A9154S | A9155 | A9221 | 12816N | A9055 | A9055(LETRIKA) | A9158 | A9158(LETRIKA) | A9161(LETRIKA) | A9190 | A9214 | A9214(LETRIKA) | A9219 | A9246(LETRIKA) |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 24 | 24 | |||||||
| Output Current | 65 | 95 | 120 | 65 | 95 | 120 | 50 | 100 | |||||||
| Design | IR/EF | (Iskra) IR | |||||||||||||
| Manufacturer | Letrika | Letrika | Letrika | Letrika | Letrika | Letrika | Letrika | Letrika | Letrika | Letrika | Letrika | ||||
| Pulley | V1 | AP | AP | AP | AP | Without Pulley | |||||||||
| Rotation | CW | CW | |||||||||||||
A. The WAI 21658N is cross-referenced against 11 LETRIKA (ISKRA) original-equipment part numbers, including 11.203.444, 11.204.420, 11.204.969, 11.205.249, 11.205.374, 11.205.556, AAN5467, AAN5525, AAN5839, AAN8211 and IA1601. To confirm the correct replacement for your machine, search our cross-referenced catalogue by OEM number or machine model, or ask Simon. Every OE cross-reference is backed by our Fit Guarantee.
A. This alternator is confirmed for two JCB applications: the Hydradig 110W (2017–2021) and the TM420 (2017–2021). Use the selection widget to match your specific make, model and engine variant, or search our catalogue by machine model or OEM number. If your JCB is not listed, ask Simon — every fitment shown is backed by our Fit Guarantee.
A. The WAI 21658N operates at 12V and delivers 170A output. It uses an IR/IF design (internal regulator, internally fan-cooled), rotates clockwise (CW) and is fitted with an S8 pulley. The Lester reference is 21658. It is supplied brand new.
A. The WAI 21658N is supplied brand new — it is not remanufactured. There is no core charge and no uncertainty regarding the condition of internal components.
A. This alternator uses an S8 pulley and rotates clockwise (CW), matching the original LETRIKA (ISKRA) specification it is designed to replace.
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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