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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: MG52
The WAI MG52 is a brand-new 12V 150A alternator. It is manufactured by MAHLE to replace Bosch and Letrika (Iskra) original-equipment units across a wide range of agricultural and plant machinery. With 21 cross-referenced OE numbers spanning Bosch and Letrika (Iskra), it is a directly sourced replacement for applications where the original unit carries references such as Bosch 0 123 515 500 or Letrika (Iskra) 11.201.794.
The MG52 is built to an internally regulated, internally fanned (IR/IF) design with clockwise rotation — the same specification as the OE units it replaces — delivering 150 amperes of output at 12 volts. The IR/IF arrangement keeps the regulator and cooling integrated within the alternator body, simplifying installation and maintaining the compact footprint demanded by tight engine bays on modern agricultural equipment.
Fitment covers 419 verified applications across twelve makes including John Deere (228 applications), Fendt, Hamm, Deutz-Fahr, Massey Ferguson, Claas, Valtra Valmet, and others. Representative models include the Claas 6030, 7030, 7035, 7044, 7055 and 9055, and the Deutz-Fahr 5090 C — confirming broad coverage of mid-to-large agricultural machinery from 2007 onwards.
Supplied brand new. Manufactured by MAHLE (Lester reference 12381).
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| Type | Alternator |
|---|---|
| Voltage | 12V |
| Output | 150A |
| Rotation | CW |
| Design | IR/IF |
| Manufacturer | MAHLE |
| Lester | 12381 |
| 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 | 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 MG52 covers 419 verified applications across twelve makes including John Deere (228 applications), Fendt, Hamm, Deutz-Fahr, Massey Ferguson, Claas, Valtra Valmet, Kramer, Zetor, Lamborghini-Agricultural, Manitou, and Zoomlion. Example models include the Claas 6030, 7030, 7035, 7044, 7055 and 9055 (2007–2017) and the Deutz-Fahr 5090 C (2012–2022). Use the selection widget to match your make, model and engine, or search our cross-referenced catalogue by OEM number or machine model. Fitment is backed by our Fit Guarantee.
A. Yes. The MG52 cross-references four Bosch OE numbers: 0 123 515 500, 0 123 515 501, 0 123 515 503, and 0 124 615 057. In total the part carries 21 OE references across Bosch and Letrika (Iskra). Search our catalogue by any of these numbers for a confirmed fitment match.
A. The MG52 cross-references 17 Letrika (Iskra) OE numbers including 11.201.794, 11.203.051, 11.203.065, 11.203.424, 11.203.590, 11.203.803, 11.204.065, 11.204.107, 11.204.242, 11.204.247, 11.204.249, 11.204.254, 11.204.271, 11.204.276, 11.204.445, 11.204.526, and 11.209.722. Search our catalogue by any of these references to confirm fitment for your machine.
A. The MG52 is a 12V, 150A alternator with clockwise rotation and an internally regulated, internally fanned (IR/IF) design. It is manufactured by MAHLE and carries Lester reference 12381. It is supplied brand new.
A. IR/IF stands for internally regulated and internally fanned. This means the voltage regulator is built inside the alternator body rather than mounted externally, and the cooling fan is integrated within the unit. The design matches the original-equipment specification of the Bosch and Letrika (Iskra) units this part replaces, making it a direct fit without additional wiring or bracket modifications.
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. 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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