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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: 23801N
The WAI 23801N is a brand-new 12V 100A alternator. It is built to replace HITACHI original-equipment units — including HITACHI LR1100-507, LR1100-507A, LR1100-507B, LR1100-507C, LR1100-507D and LR1100-507E — across Vauxhall and Opel applications. Designed as a direct OE replacement, it carries the Lester reference 23801 and is manufactured to a HITACHI IR/IF (internal regulator / internal fan) design specification.
Constructed as a clockwise-rotation unit fitted with an S6 pulley, the 23801N delivers the full 100-amp output demanded by modern vehicle electrical systems. The internal regulator eliminates any need for an external regulator in the charging circuit, and the internal fan design keeps the unit compact within the engine bay. Supplied brand new, it requires no core exchange or rebuilding on installation.
The alternator fits Vauxhall and Opel models including the Opel Astra H (2004–2005), Opel Combo (2004–2008), Vauxhall Astra Mk V (2004–2007) and Vauxhall Combo Mk II (2004–2008) — six applications in total across the two marques. Buyers should verify fitment against engine variant and build date before ordering.
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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 |
|---|---|
| Voltage | 12V |
| Output | 100A |
| Rotation | CW |
| Design | IR/IF |
| Manufacturer | HITACHI |
| Pulley | S6 |
| Lester | 23801 |
| 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 | 21832N | A2022 | A2120S | 12113N | 12118N | 12129N | 12275N | 14231N | 12114N | 12278N | 12288N | 14105N | A2022(P) | A2022(P-INA) | A2038 |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 24 | 12 | 12 | 12 | |||
| Output Current | 100 | 100 | 80 | 25 | 40 | 35 | 55 | 35 | 20 | 50 | 35 | 35 | |||
| Design | IR/IF | IR | IR/EF | IR/EF | IR/EF | Mitsubishi IR/EF | IR/EF | IR/EF | IR/EF | ER/EF | |||||
| Manufacturer | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | ||
| Pulley | SC6 | AP | Groove Pulley | Groove Pulley | Groove Pulley | Groove Pulley | Groove Pulley | Groove Pulley | Groove Pulley | Groove Pulley | Groove Pulley | ||||
| Rotation | CW | CW | CW | CW | CW | CW | CW | CW | CW | ||||||
A. The WAI 23801N replaces all six HITACHI original-equipment references for this unit: LR1100-507, LR1100-507A, LR1100-507B, LR1100-507C, LR1100-507D and LR1100-507E. These are the only cross-references published for this part. Use the Lester reference 23801 to cross-check against other catalogues.
A. The WAI 23801N fits Vauxhall and Opel models including the Opel Astra H (2004–2005), Opel Combo (2004–2008), Vauxhall Astra Mk V (2004–2007) and Vauxhall Combo Mk II (2004–2008) — six applications in total across the two marques. Use the selection widget to match your exact make, model and engine variant, or search our cross-referenced catalogue by OEM number. Every fitment shown is backed by our Fit Guarantee.
A. Yes — fitment can differ between engine variants and build dates even within the same model range. The source data covers six specific applications across Opel and Vauxhall, so verify your engine code and build date using the selection widget or by searching the catalogue by OEM number before ordering. If you are unsure, ask Simon.
A. The 23801N is a 12V, 100A alternator with clockwise rotation and an S6 pulley. It uses an IR/IF (internal regulator / internal fan) design, meaning no external regulator is required in the charging circuit. The Lester reference is 23801. It is supplied brand new — no core exchange required.
A. IR/IF stands for internal regulator / internal fan. The internal regulator means the voltage regulation is built into the alternator body itself, so no separate external regulator is needed in the charging circuit. The internal fan keeps the unit self-contained and compact within the engine bay.
A. The WAI 23801N is supplied brand new. It is not a remanufactured or reconditioned unit, so there is no core or exchange surcharge and no old unit to return.
A. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.
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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