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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: 11921N
The WAI 11921N is a brand-new 12V 100A alternator. It is built to Mitsubishi IR/IF specification, cross-referenced against Kubota original-equipment numbers 1J431-64012 and 1J43164012, as well as Mitsubishi references A002TC1877, A002TC1877A, A2TC1877 and A2TC1877A. It is designed as a direct replacement for worn or failed alternators on the machines these OE numbers cover.
The IR/IF (internal regulator, internally fused) design integrates the voltage regulator within the alternator body, eliminating the need for an external regulator and simplifying installation. At 100 amperes output on a 12-volt circuit, it delivers the generating capacity specified for the original Mitsubishi-manufactured unit. Clockwise rotation matches the drive arrangement of the applications these references serve.
Being supplied as brand new — not remanufactured — means all internal components, including the rotor, stator, rectifier pack and brushgear, are at full service life from the point of installation.
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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 | Mitsubishi |
| Design | IR/IF |
| Voltage | 12V |
| Output | 100A |
| Rotation | CW |
| 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 | 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 11921N is cross-referenced against both Kubota OE numbers 1J431-64012 and 1J43164012, making it a confirmed direct replacement for those references. To verify it is the correct unit for your specific machine, search our catalogue by OEM number or ask Simon — every OE cross-reference shown is backed by our Fit Guarantee.
A. The WAI 11921N is cross-referenced against four Mitsubishi OE references: A002TC1877, A002TC1877A, A2TC1877 and A2TC1877A. If your existing alternator carries any of these numbers, this WAI unit is the confirmed replacement. Cross-reference our catalogue by OEM number to confirm fitment, or ask Simon if you are unsure.
A. The WAI 11921N is a 12-volt, 100-amp alternator of Mitsubishi IR/IF design, with clockwise rotation. It is supplied brand new — not remanufactured — so all internal components are at full service life from installation.
A. IR/IF stands for internal regulator, internally fused. The voltage regulator is built into the alternator body rather than mounted separately, which removes the need for an external regulator and simplifies the installation.
A. The WAI 11921N is supplied brand new. It is not remanufactured or reconditioned, so the rotor, stator, rectifier pack and all internal components are at full service life from the point of installation.
A. Yes. In addition to the Kubota and Mitsubishi references, the WAI 11921N is also cross-referenced against AD Kuhner 554752RI and Farcom 114538, giving 8 OE references in total. Search our cross-referenced catalogue by any of these numbers to confirm suitability for your machine.
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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