Skip to product information
12_9217c6e5-6faf-4fae-b308-e67aff5d317a - Northline Parts

12V Alternator 187-1224 for Onan Genset HDCAC HDCAD HDCAA HDCAB

SKU: NLT2T00728
$214.79 In Stock
$214.79
Sale price  $214.79 Regular price 
Ships for free in 2–4 business days.
This is a replacement alternator for Onan Genset HDCAA, HDCAB, HDCAC, HDCAD; replaces 187-1224.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
Onan Genset HDCAA, HDCAB, HDCAC, HDCAD

Product Overview

A charging warning, low battery voltage with the engine running, repeated dead batteries or noisy alternator bearings can point to charging-system trouble after the battery, belt and wiring are checked.

This replacement alternator restores charging output for compatible Onan genset applications. Match voltage, mounting, pulley and electrical terminals before installation.

Key Features & Performance

  • Replacement alternator for the listed application
  • Designed for repair when diagnosis or inspection confirms the original component is worn, damaged or failed
  • Match the original part number, mounting and connections before installation
  • Replaces or cross-references 187-1224

Replaces / Cross-References

  • 187-1224

What Is Included

1 replacement component for this SKU unless the product title or images state a multi-piece quantity.

Fitment Notes

Match the original part number, equipment model, mounting points, connector or hose/fitting style, and any serial-number restrictions before ordering. Use the original component and machine serial number as the final fitment check when multiple revisions were used.

Frequently Asked Questions

Is this a genuine OEM part?
No, unless the product page specifically states otherwise. This listing is for a replacement, accessory, upgrade or repair component as described above. OE and interchange numbers are provided for identification and fitment reference.

How should I verify fitment before ordering?
Compare the original part number, machine or engine model, mounting arrangement and electrical, fuel, hydraulic or cooling-system connections with the information above.

Part Summary

Keywords: alternator, Onan Genset HDCAA, HDCAB, HDCAC, HDCAD, 187-1224.

Customers also purchased