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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: 20621N
The WAI 20621N is a brand-new 24V 100A alternator. It is engineered to replace Iskra and Letrika original-equipment units, including Iskra references 11204255, 11204409, IA0795 and IA1028, as well as Letrika reference 11.203.102 — with 42 cross-referenced OE numbers covered in total. Built to the IR/IF (internal regulator, internal fan) design standard established by Letrika (Iskra), it is a direct-replacement unit for plant, agricultural and commercial vehicle applications that originally specified this architecture.
The alternator produces a regulated 24V output at 100A, making it suited to the higher electrical demands of diesel-powered machinery and commercial vehicles running on 24V systems. Clockwise rotation (viewed from the drive end) matches the original specification, and the unit is supplied without a pulley so that the vehicle's existing pulley can be refitted — avoiding the need to source a matched replacement separately.
Condition is brand new throughout; this is not a remanufactured or exchange unit. The IR/IF configuration means the voltage regulator and fan are self-contained within the alternator body, keeping the installation clean and straightforward.
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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 | Alternator |
|---|---|
| Manufacturer | Letrika |
| Design | (Iskra) IR/IF |
| Voltage | 24V |
| Output | 100A |
| Rotation | CW |
| Pulley | w/o Pulley |
| 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 20621N cross-references 42 Iskra and Letrika OE numbers in total. The sample includes Iskra / Letrika tech 11204255, Iskra / Letrika tech 11204409, Iskra / Letrika commercial IA0795, IA1028, IA1031, IA1133, IA1251, IA1322 and IA1329, Iskra family references AAN5836 and AAN8167, Iskra standalone numbers including 11203102, 11203502, 11203694, 11203702, 11204244, 11204258, 11204337, AAN5124, AAN5546, AAN5595, AAN5806, AAN8156 and AAN8170, and Letrika 11.203.102. To check whether your specific OE number is covered, search our cross-referenced catalogue by OEM number or ask Simon.
A. Yes — both Iskra / Letrika commercial IA0795 and IA1028 are among the 42 OE cross-references covered by the WAI 20621N. To verify any specific reference in the full list, search our cross-referenced catalogue by OEM number or ask Simon.
A. It is a 24V alternator with a 100A output, designed for 24V electrical systems as fitted to plant, agricultural and commercial vehicle applications that originally used Letrika (Iskra) IR/IF units.
A. The WAI 20621N is supplied without a pulley — your existing pulley should be refitted onto the new unit. Rotation is clockwise (CW) when viewed from the drive end, matching the original Letrika (Iskra) specification.
A. It is brand new throughout — not remanufactured, reconditioned, or supplied on an exchange basis.
A. IR/IF stands for internal regulator and internal fan. The voltage regulator is built into the alternator body rather than mounted externally, and the cooling fan is enclosed within the unit. This makes the installation self-contained and keeps the wiring arrangement clean.
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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