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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: 12748N
The WAI 12748N is a brand-new 24V 50A alternator designed as a direct replacement for Mitsubishi IR/EF units. It replaces Mitsubishi original-equipment references including 34368-02300, 3436802300, A004TU3586 and A4TU3586, as well as Caterpillar references 10R2576, 2128561 and 5I8085, covering 11 OE cross-references in total. Supplied complete with a groove pulley and clockwise rotation, it is built to match the original specification precisely.
The IR/EF (internal regulator, external fan) design integrates the voltage regulator inside the alternator body, keeping the installation clean and reducing external wiring complexity. Clockwise rotation and the groove pulley configuration ensure a straightforward, like-for-like fitment against the original Mitsubishi unit.
In terms of application coverage, this alternator fits 74 Caterpillar Ag. & Ind. machines — including the 311, 311B, 311C, 311D, 312, 312B, 312BL and 312C — as well as one Kobelco application, giving 75 confirmed fitments in total.
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| Type | Alternator |
|---|---|
| Manufacturer | Mitsubishi |
| Design | IR/EF |
| Voltage | 24V |
| Output | 50A |
| Rotation | CW |
| Pulley | Groove Pulley |
| 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 | 11177N | 12626N | 13723N | A5171 | A5226 | A5320 | A5332 | A5397S | A5412S | A5432S | A5444S | 14687N | 20224N | 12132N | 12310N |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 24 | 12 | 24 | 12 | 24 |
| Output Current | 80 | 90 | 80 | 80 | 150 | 45 | 185 | 150 | 185 | 220 | 90 | 35 | 100 | 35 | 40 |
| Design | IR/IF | IR/IF | IR/IF | IR/EF | IR/IF | ER/EF | Mitsubishi IR/EF | ||||||||
| Manufacturer | Mitsubishi | Mitsubishi | Mitsubishi | Mitsubishi | Mitsubishi | Mitsubishi | |||||||||
| Pulley | S5 | V2 | S6 | AP | AFP | AP | AFP-INA | AFP | AFP | AFP | AP | Groove Pulley | Groove Pulley | ||
| Rotation | CW | CW | CW | CW | CW | CW | CW | ||||||||
A. Yes. The WAI 12748N is a direct replacement for Mitsubishi original-equipment references 34368-02300, 3436802300, A004TU3586 and A4TU3586 — 4 Mitsubishi references in total. There are 11 OE cross-references across all brands covered by this part. Search our cross-referenced catalogue by OEM number to confirm your exact reference, or ask Simon.
A. This alternator fits 74 Caterpillar Ag. & Ind. machines plus one Kobelco application — 75 confirmed fitments in total. Caterpillar models covered include the 311 (1993–2004), 311B (1998–2002), 311C (2002–2008), 311D (2005–2008), 312 (1993–2012), 312B (1997–1999), 312BL (1997–2000) and 312C (2001–2008), among others. Use the selection widget to match your exact make, model and engine variant, or ask Simon. Every fitment is backed by our Fit Guarantee.
A. Yes. The WAI 12748N cross-references to Caterpillar 10R2576, Caterpillar 2128561, Caterpillar 5I8085 and CAT 10R-2576, among others. The full set of 11 OE references also includes Sando 20356110 and Sando 20356111. Search our catalogue by any of these numbers to verify fitment for your machine.
A. The WAI 12748N is a brand-new 24V, 50A alternator with an IR/EF (internal regulator, external fan) design, clockwise rotation and a groove pulley. It is built to the Mitsubishi original specification.
A. IR/EF stands for Internal Regulator / External Fan. The voltage regulator is housed inside the alternator body rather than mounted separately, which simplifies the installation and reduces external wiring. The external fan provides cooling airflow during operation.
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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