Phone Phone 01926754100 Cart Cart
Fit guarantee icon
FIT GUARANTEE or Hassle-Free Returns
Quick delivery icon
QUICK DELIVERY On All Products Across UK
Customer support icon
GREAT SUPPORT 24/7 Support For Any Query
rating icon
TOP RATED Trusted by Our Customers
  • Ratings Standard Delivery: £4.99
  • Delivery Delivery Estimate: 1 to 2 working days
  • Save Extra Save Extra With 1 Offer
  • Ratings Compare With Similar Items
  • Use promo code "RMPK1" to get Additional 1% OFF
Compare with Similar products
Technical Specification
PRODUCT NUMBER 13152NA9154SA9155A922112816NA9055A9055(LETRIKA)A9158A9158(LETRIKA)A9161(LETRIKA)A9190A9214A9214(LETRIKA)A9219A9246(LETRIKA)
Voltage 1212121212122424
Output Current 6595120659512050100
Design IR/EF(Iskra) IR
Manufacturer LetrikaLetrikaLetrikaLetrikaLetrikaLetrikaLetrikaLetrikaLetrikaLetrikaLetrika
Pulley V1APAPAPAPWithout Pulley
Rotation CWCW

Q 1. Which machines does this alternator fit?

A. The WAI 12785N covers 86 verified applications across New Holland Industrial (58), Case (22), McCormick (5), and Steyr (1). Case models include the Farmall 55C, 65C, 70, 75C, 105C, 105U, 115A, and 115U (2008–2015). To confirm fit for your specific machine, use the selection widget to match by make, model and engine, or search the cross-referenced catalogue by OEM number. Every fitment shown is backed by our Fit Guarantee.

Q 2. Does this replace the Case part number 87311822?

A. Yes — Case 87311822 is a direct OE cross-reference for the WAI 12785N. The full list of 29 references also includes Fiat 47383500, Iskra AAK4858, Iskra / Letrika commercial IA1205, Iskra / Letrika commercial IA1352, Mahle MG 223, Mahle Original MG223, Iveco 504271461, and Iveco 5801453378, among others. Search our catalogue by any of these numbers to verify your application.

Q 3. What Fiat or Iveco OE numbers does this alternator cross-reference to?

A. From the 29 OE references listed for this part, the Fiat reference is Fiat 47383500 and the Iveco references are Iveco 504271461 and Iveco 5801453378. If you are looking up by an OE number not listed here, search our cross-referenced catalogue or ask Simon to confirm the match.

Q 4. What are the key specifications — voltage, output and rotation?

A. The WAI 12785N is a 12-volt alternator with a 120-amp output, clockwise rotation, and a groove pulley. It follows the Letrika (Iskra) IR/EF design with an internal regulator and external fan, matching the architecture of the original-equipment unit it replaces.

Q 5. Is there a Mahle or Iskra equivalent for this alternator?

A. Yes. Mahle cross-references for this part are Mahle MG 223 and Mahle Original MG223. Iskra references include Iskra / Letricka tech 11204484, Iskra / Letrika commercial IA1205, Iskra / Letrika commercial IA1352, Iskra / Letrika family AAK4858, Iskra 11204327, Iskra AAK1832, Iskra AAK4314, Iskra AAK4810, and Iskra AAK4860. The full set of 29 cross-references is available in the catalogue.

Q 6. How do I confirm this part fits my vehicle or machine?

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.

Q 7. Is this part covered by your 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.

Get exclusive updates on offers & latest trends in construction industry

By sharing your email, you agree to our privacy policy & terms of service