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Technical Specification
PRODUCT NUMBER 14482N20539N21610N23853N21173N22155N23791N8440NA4033A4058A4072A4084A4085A4103A9012
Voltage 121212121212121212121212121212
Output Current 12012490901109010010570807085110
Design IR/IFIR/IFIR/IFIR/IFIR/IFIR/IF
Manufacturer MarelliMarelliElectropreciziaVISTEONMarelliFordMandoFord
Pulley COUPLERS6S6SC7S6APAPAPAPAPAP
Rotation CWCWCWCW

Q 1. What does the WAI 8417N replace, and which OE numbers does it cross-reference?

A. The 8417N replaces original-equipment alternators from Prestolite and Motorola, and also cross-references John Deere OE parts. Verified references include Prestolite 110-402, Prestolite 110-602, Prestolite Electric 110402, Prestolite Electric 110602, Motorola 10-402, Motorola 10402, Motorola 8MR2069T, Motorola 8MR2069TA, John Deere RE50411 and John Deere RE50811 — 10 OE references in total. To confirm fit by OE number or machine model, search our cross-referenced catalogue or ask Simon.

Q 2. Which John Deere machines does this alternator fit?

A. The WAI 8417N has confirmed fitment on John Deere 4039 (1990–1997) and John Deere 4045 (1987–2007) engine applications — 2 John Deere applications in total. Use the selection widget to match your exact engine variant, or ask Simon if your machine is not listed. Every fitment shown is backed by our Fit Guarantee.

Q 3. Does this alternator come with a pulley fitted?

A. No — the 8417N is supplied without a pulley. It is designed for installations where the original pulley is in good condition and will be reused. Transfer the existing pulley across during fitting.

Q 4. What is the output and design type of this alternator?

A. The WAI 8417N delivers 12V at 90A and follows an IR/EF (internal regulator, external fan) design to Motorola specification. It is supplied brand new.

Q 5. Can I ask questions about this product before ordering?

A. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.

Q 6. 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.

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