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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: 12038N
The WAI 12038N is a brand-new 12V 34A Lucas-design alternator. It is built to the IR/EF (internal regulator, external fan) specification, supplied as a direct replacement for original-equipment units across 14 Massey Ferguson tractor applications. It crosses to original Lucas numbers including 23865, 23880 and 24019, as well as references from Delco Remy, Valeo, Iskra and Mahle Original — making it a well-cross-referenced choice for workshop and agricultural engineers sourcing a like-for-like replacement.
Engineered to the IR/EF design, the unit integrates the voltage regulator internally and uses an external fan for cooling, matching the layout of the original Lucas alternators fitted to this range of Massey Ferguson tractors. A clockwise rotation and groove pulley configuration mean the 12038N is a direct mechanical fit where the OE specification is met. The brand-new condition means there are no worn brushes, bearings or slip rings to contend with — a reassurance that matters when a tractor is needed in the field.
Confirmed fitment includes models such as the MF-240, MF-250, MF-253 and MF-263T, spanning production years from the early 1980s through to the late 1990s and beyond. With 46 OE and aftermarket cross-references on file, this alternator sits at the centre of a wide compatibility web — useful when cross-checking a worn unit's original part number.
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| Type | Alternator |
|---|---|
| Manufacturer | Lucas |
| Design | IR/EF |
| Voltage | 12V |
| 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 | A4011 | A4012 | A4014 | A4108 | A4113 | A4117 | 12398N-OE | 12428N | 8826N | 12090N | 12365N | 12429N |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 24 | 24 | 12 | 12 | 12 | 12 |
| Output Current | 55 | 70 | 70 | 55 | 70 | 36 | 55 | 30 | 36 | 55 | 72 | 70 |
| Design | A127MT IR/EF | IR/EF | IR/EF | IR/EF | IR/EF | A127 IR/EF | ||||||
| Manufacturer | Lucas | Lucas | Lucas | Lucas | Lucas | Lucas | ||||||
| Pulley | AP | AP | AP | AP | AP | AP | Groove Pulley | Groove Pulley | Groove Pulley | Groove Pulley | Groove Pulley | Groove Pulley |
| Rotation | Bi-directional | CW | CW | CW | CW | CW | ||||||
A. The 12038N fits 14 Massey Ferguson applications, including the MF-20B, MF-240, MF-250, MF-253, MF-254 and MF-263T, covering production years from the early 1980s through to the late 1990s and beyond. To confirm your exact model and engine variant, use the selection widget on this page or search our cross-referenced catalogue by machine model. Every fitment shown is backed by our Fit Guarantee.
A. Yes. The WAI 12038N directly replaces Lucas original-equipment numbers including 23865, 23865A, 23880, 23880A, 24019, 24019A, 24022, 24022A, 24087, 24087A/D and 24087B — 11 Lucas references in total. There are 46 OE and aftermarket cross-references on file across brands including Delco Remy, Valeo, Iskra and Mahle Original. Search by your existing part number to confirm a match.
A. Yes, where the original alternator carries a Delco Remy or Valeo reference that cross-maps to this unit. The 12038N crosses to Delco Remy DRA3458 and to Valeo references including 2925470, 2925480, 2925490, 432983, 436263, 510-038, 510-039 and 510-040, among others. Check your worn unit's part number against our catalogue or ask Simon to confirm the match.
A. IR/EF stands for Internal Regulator / External Fan. The voltage regulator is built into the alternator body rather than mounted separately, and cooling is provided by an external fan. If your original Lucas, Valeo, Iskra or Delco Remy alternator carried the same IR/EF designation and your part number appears in the 46-reference cross-reference list for this part, the 12038N is a like-for-like replacement.
A. The alternator produces 12V at 34 amps and rotates clockwise (CW). It is fitted with a groove pulley. These figures should be matched against your original unit's specification before ordering — if you are unsure, ask Simon or search our cross-referenced catalogue by your existing part number.
A. The WAI 12038N is supplied brand new — not remanufactured, reconditioned or exchange. There are no previously worn brushes, bearings or slip rings.
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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