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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: 12782N
The WAI 12782N is a brand-new 12V 150A alternator. It is built to replace Bosch original-equipment units — including Bosch 0 124 615 043 and 0124615043 — as well as Delco Remy DRA0834 and cross-referenced equivalents from Iskra, Letrika, Mahle, and Sando. It is engineered to Bosch IR/IF (internal regulator, internal fan) specification and suits 65 John Deere applications, covering tractor and self-propelled machinery models from the 5430i through to the 6120SE series.
Constructed to match the performance envelope of the original Bosch unit, the 12782N delivers a rated 150-amp output at 12 volts with clockwise rotation. The internal regulator design eliminates the need for an external voltage regulator, simplifying installation and reducing the number of components in the charging circuit. The unit is supplied without a pulley — the original pulley is retained and transferred during fitment — keeping costs down and ensuring proper belt alignment with your existing drive system.
With 20 OE cross-references on record across Bosch, Delco Remy, Iskra / Letrika, Mahle, and Sando, this alternator covers a wide spread of John Deere agricultural machinery built between 2002 and 2015.
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| Type | Alternator |
|---|---|
| Manufacturer | Bosch |
| Design | IR/IF |
| Voltage | 12V |
| Output | 150A |
| Rotation | CW |
| Pulley | Without 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 | 12384N | 13381N-7G | 13625N | 13922N | 13998N | 20008N | 20803N | 21346N | 21480N | 21906N | 23344N | 23777N | 23914N | 11134N | 11234N |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Output Current | 150 | 90 | 120 | 140 | 180 | 180 | 90 | 140 | 200 | 120 | 150 | 140 | 125 | ||
| Design | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | ||
| Manufacturer | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch |
| Pulley | SC6 | S7 | S6 | SC6 | SC6 | SC6 | S6 | SC6 | S6 | S7 | SC6 | SC6 | S6 | ||
| Rotation | CW | CW | CW | CCW | CW | CW | CW | CW | CW | CW | CW | CW | |||
A. The WAI 12782N fits 65 John Deere applications, including the 5430i (2013–2015), 6090MC (2013–2015), 6090RC (2013–2015), 6100MC (2013–2015), 6100RC (2013–2015), 6110MC (2013–2015), 6120 (2002–2005), and 6120SE (2002–2005), among others. Use the selection widget to match your exact model and engine variant, or search our cross-referenced catalogue by machine model. Every fitment shown is backed by our Fit Guarantee.
A. Yes. The WAI 12782N is a direct replacement for Bosch 0 124 615 043 and 0124615043. It is also cross-referenced to Delco Remy DRA0834, with a further 20 OE references on record across Iskra / Letrika, Mahle, and Sando. Search our catalogue by any of these OE numbers to confirm suitability for your machine.
A. Yes — Delco Remy DRA0834 is one of the 20 OE cross-references listed for this part. The WAI 12782N is engineered to the same IR/IF specification and rated output as the original Delco Remy unit, making it a compatible replacement.
A. The WAI 12782N is a 12-volt, 150-amp alternator with an internal regulator and internal fan (IR/IF) design and clockwise rotation. It is supplied brand new and without a pulley — your original pulley is retained during installation.
A. The 12782N is specified without a pulley so that the original pulley from your existing unit is transferred across during fitment. This preserves correct belt alignment and pulley diameter for your specific drive system, and avoids the cost of a pulley you may not need.
A. IR/IF stands for Internal Regulator / Internal Fan. The voltage regulator is built into the alternator body rather than mounted separately on the vehicle, and the cooling fan is housed inside the unit. This design simplifies installation and reduces external wiring compared with older externally regulated alternators.
A. The WAI 12782N is cross-referenced to Iskra / Letricka tech 11204502, Iskra / Letrika commercial IA1545, Iskra / Letrika family AAN5869, Iskra 11204399, Iskra AAN5832, Letrika 11.204.399, Letrika 11.204.502, Mahle MG 467, Mahle Original 72735466, and Mahle Original MG467, among others. A full list of 20 OE references is available in the product listing.
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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