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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: 12379N
The WAI 12379N is a brand-new 12V 90A alternator. It is built to Bosch IR/IF specification, replacing Bosch original-equipment references including 0 123 315 501 and 0123315501. Designed for agricultural machinery across John Deere and Fendt platforms — 56 John Deere and 9 Fendt applications in total — it is a direct-fit replacement for worn or failed charging units on a wide range of tractors and plant equipment.
Constructed to OE dimensions and output tolerances, the 12379N delivers a regulated 90-amp output at 12 volts with clockwise rotation. It is fitted with a groove decoupler pulley, which absorbs drivetrain vibration and reduces belt wear compared with a solid pulley — an important advantage on high-hours agricultural machines. The internal regulator and internal fan (IR/IF) design keeps the unit compact and self-contained, simplifying installation and reducing external wiring.
This alternator carries cross-references across a broad range of OE and aftermarket catalogues, including Delco Remy DRB6000, Valeo 440 047, Iskra/Letrika IA1052 and IA1056, Mahle MG 329, and Fendt F920901010010, among 31 verified references in total. That depth of cross-referencing makes it straightforward to confirm fitment against an existing part number.
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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 | Bosch |
| Design | IR/IF |
| Voltage | 12V |
| Output | 90A |
| Rotation | CW |
| Pulley | Groove Decoupler 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 | 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 12379N fits John Deere and Fendt machines — 56 John Deere applications and 9 Fendt applications in total, including the Fendt Favorit 916, Favorit 920, and Favorit 924 (1999–2003). Use the selection widget to match your exact make, model and engine, or search our cross-referenced catalogue by OEM number or machine model. Every fitment shown is backed by our Fit Guarantee.
A. Yes. The WAI 12379N directly replaces Bosch 0 123 315 501 and 0123315501, as well as Bosch Exchange 0986046000 and Bosch USA AL5049X. In total there are 31 verified OE and aftermarket cross-references for this part. Search our catalogue by your existing part number to confirm fitment, or ask Simon if you need further assistance.
A. Yes — the 12379N cross-references Delco Remy DRB6000, making it a confirmed replacement for that unit on applicable John Deere machines. Use the cross-reference search or the selection widget to verify your specific model, and every fitment shown is covered by our Fit Guarantee.
A. The 12379N is a 12V, 90A alternator with clockwise rotation. It uses an internal regulator and internal fan (IR/IF) design and is fitted with a groove decoupler pulley, which absorbs drivetrain vibration and helps extend belt life on high-hours machines.
A. Yes. Verified cross-references include Valeo 440 047, Valeo 440047, and Valeo 568634, as well as Iskra/Letrika commercial IA1052 and IA1056, Iskra/Letrika family AAK5391, Iskra AAK5382, and Letrika 11.203.186, among 31 references in total. Quote any of these numbers in the catalogue search to confirm this is the correct unit.
A. Yes — this alternator replaces Fendt F 920 901 010 010 (also listed as F920901010010) and is confirmed across 9 Fendt applications including the Favorit 916, 918NA, 920, 920NA, 924, 924NA, 926, and 926NA models (1999–2003).
A. The WAI 12379N is supplied brand new. No exchange or core return is required.
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 — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.
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