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Technical Specification
PRODUCT NUMBER 21832N23801NA2022A2120S12113N12118N12129N14231N12114N12278N12288N14105NA2022(P)A2022(P-INA)A2038
Voltage 121212121212121224121212
Output Current 100100100802540353520503535
Design IR/IFIR/IFIRIR/EFIR/EFMitsubishi IR/EFIR/EFIR/EFIR/EFER/EF
Manufacturer HitachiHitachiHitachiHitachiHitachiHitachiHitachiHitachiHitachiHitachiHitachiHitachiHitachi
Pulley SC6S6APGroove PulleyGroove PulleyGroove PulleyGroove PulleyGroove PulleyGroove PulleyGroove PulleyGroove Pulley
Rotation CWCWCWCWCWCWCWCWCW

Q 1. What machines does the WAI 12275N fit?

A. This alternator fits two Mustang compact machine applications: the Mustang 552 (1985–1989) and the Mustang 960 (1988–1996). To confirm your exact variant is covered, use the selection widget to match by model and year, or search our cross-referenced catalogue by OEM number. Every fitment shown is backed by our Fit Guarantee.

Q 2. Does this alternator replace Hitachi LR155-29 or LR15529?

A. Yes. The WAI 12275N directly replaces Hitachi references LR155-29 and LR15529. It also crosses to Isuzu 8944179240 and Hella 8EL737061001 — four OE cross-references in total. If you are matching from an OE number on your existing unit, you can also search our catalogue by that number to confirm the fit.

Q 3. Does this replace an Isuzu alternator reference?

A. Yes — the 12275N crosses to Isuzu reference 8944179240. If your machine's alternator carries an Isuzu part number, you can verify the match by searching our cross-referenced catalogue or using the OEM number lookup.

Q 4. What are the key electrical and mechanical specifications?

A. The WAI 12275N is rated at 12V and 55A output, with clockwise rotation and a groove pulley. It is built to the Hitachi IR/EF design and is supplied brand new — not remanufactured. Full specifications are shown in the table on this listing.

Q 5. Is this a new unit or a remanufactured exchange?

A. It is supplied brand new. No core exchange or surcharge applies.

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.

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