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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: 12278N
The WAI 12278N is a brand-new 12V 50A alternator. It is built to the Hitachi IR/EF design, replacing original-equipment units from Mitsubishi, Hitachi, Isuzu, Mazda, and Hyster across 27 cross-referenced part numbers. It is a direct-fit replacement for applications that originally carried Mitsubishi references such as A002T23474, A003T20777, and A003T31071, as well as Hitachi units LR150-165 and LR150165, making it a practical choice for plant, agricultural, and industrial machinery running these original alternators.
Constructed to match the specification of the original Hitachi unit, the 12278N delivers a regulated 12V output at 50A — sufficient for the electrical demands of the equipment it serves. It runs clockwise rotation and is fitted with a groove pulley, ensuring compatibility with the correct drive belt arrangement on supported applications. The IR/EF (internal regulator, external fan) design means the voltage regulator is integrated within the alternator body, keeping the installation straightforward.
Being brand new rather than remanufactured, the unit carries no core charge considerations and arrives ready to fit without the uncertainty of reconditioned components.
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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 | Hitachi |
| Design | IR/EF |
| Voltage | 12V |
| 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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| Technical Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | 21832N | 23801N | A2022 | A2120S | 12113N | 12118N | 12129N | 12275N | 14231N | 12114N | 12288N | 14105N | A2022(P) | A2022(P-INA) | A2038 |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 24 | 12 | 12 | |||
| Output Current | 100 | 100 | 100 | 80 | 25 | 40 | 35 | 55 | 35 | 20 | 35 | 35 | |||
| Design | IR/IF | IR/IF | IR | IR/EF | IR/EF | IR/EF | Mitsubishi IR/EF | IR/EF | IR/EF | ER/EF | |||||
| Manufacturer | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | Hitachi | ||
| Pulley | SC6 | S6 | AP | 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 12278N crosses to 27 OE references in total, covering units from Mitsubishi, Hitachi, Isuzu, Mazda, and Hyster. Confirmed references include Mitsubishi A002T23474, A003T20777, A003T31071, A005T20377, A005T32174, A3T31071, A5T32174, and AH2063H; Hitachi GD207976-A, LR150-165, and LR150165; Isuzu 5812003470 and 817318300; Mazda 148018300, 409518300, 413018300, 817318300, 817318300B, 852718300, D42918300, HE4118300, and HE4518300; and Hyster 3068340, 1360815, and 3122810. Search our cross-referenced catalogue by OEM number or ask Simon to confirm your specific reference.
A. Yes. Hyster 3068340 is one of the confirmed OE cross-references for this part, alongside Hyster 1360815 and Hyster 3122810. If you are sourcing a replacement for the Hyster 3068340, the WAI 12278N is a direct cross-reference. Use the catalogue search by OEM number or ask Simon to verify fitment for your specific machine.
A. Yes — eight Mitsubishi OE references are confirmed for this part, including A002T23474, A003T20777, A003T31071, A005T20377, A005T32174, A3T31071, A5T32174, and AH2063H. Search by your Mitsubishi part number in our cross-referenced catalogue, or ask Simon for confirmation.
A. The 12278N is a 12V alternator with a 50A output, clockwise rotation, and a groove pulley. It follows the Hitachi IR/EF design — meaning an integrated internal voltage regulator and an external fan — and is supplied brand new.
A. It is brand new. There is no remanufactured or exchange element to this unit, so no core return is required.
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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