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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: 12259N
The WAI 12259N is a brand-new 24V 34A alternator. It is built to the Nikko IR/EF specification, replacing Denso OEM number 0350000550 and a range of original Komatsu and Nikko units across four Komatsu machine families. It is designed for heavy plant applications where a reliable, direct-fit charging unit is essential.
Constructed to the internal-regulator/external-fan (IR/EF) design standard, this alternator runs a clockwise rotation and is fitted with a groove pulley as standard — matching the drive arrangement found on the Komatsu machines in its fitment list. Being brand new, it carries no wear history and is ready to install straight from the box without reconditioning or unknown service life to contend with.
The unit covers four Komatsu applications including the D65E dozer (1994), PC130 and PC400 excavators, and WA320 wheel loader (see fitment detail below). Thirty-two OE and aftermarket cross-references are catalogued for this part, spanning Denso, Komatsu, Nikko, AD Kuhner, and Farcom numbering — making it straightforward to confirm against an existing part number or workshop catalogue.
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| Type | Alternator |
|---|---|
| Manufacturer | Nikko |
| Design | IR/EF |
| Voltage | 24V |
| Output | 34A |
| 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 | 14482N | 20539N | 21610N | 23853N | 21173N | 22155N | 23791N | 8440N | A4033 | A4058 | A4072 | A4084 | A4085 | A4103 | A9012 |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Output Current | 120 | 124 | 90 | 90 | 110 | 90 | 100 | 105 | 70 | 80 | 70 | 85 | 110 | ||
| Design | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | |||||||||
| Manufacturer | Marelli | Marelli | Electroprecizia | VISTEON | Marelli | Ford | Mando | Ford | |||||||
| Pulley | COUPLER | S6 | S6 | SC7 | S6 | AP | AP | AP | AP | AP | AP | ||||
| Rotation | CW | CW | CW | CW | |||||||||||
A. The WAI 12259N fits four Komatsu applications: the D65E dozer (1994), PC130 excavator (1998-on), PC400 excavator (1995–1997), and WA320 wheel loader (1998-on). Use the selection widget to match your exact make, 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 12259N is cross-referenced directly against Denso OEM 0350000550. It also covers a wide range of Komatsu original numbers including 600-825-3120, 600-825-3150, 600-825-3151, 600-825-3160, and 600-825-3161, plus Nikko and AD Kuhner references — 32 OE cross-references in total. Search our catalogue by OEM number to confirm against your specific reference.
A. Yes, this is a 24V alternator with a 34A output, built to the IR/EF (internal-regulator/external-fan) design. Rotation is clockwise and it is fitted with a groove pulley. It is supplied brand new.
A. Yes — eleven Komatsu OE references are listed for this part, including KOMATSU 600-825-3120, 600-825-3150, 600-825-3151, 600-825-3160, 600-825-3161, and Komatsu R6008253150, among others. If your machine's workshop manual or existing unit carries one of these numbers, the WAI 12259N is the confirmed replacement. Ask Simon if you need help cross-referencing.
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.
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.
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