Skip to product information
Usually ships in 2–4 business days.
12V Alternator 187-1224 for Onan Genset HDCAC HDCAD HDCAA HDCAB
$214.79
Sale price
$214.79
Regular price
Available to Order
This 12V Alternator is a high-quality aftermarket replacement part compatible with Onan Genset HDCAC, HDCAD, HDCAA, and HDCAB and matches OEM Part# 187-1224.
Need help finding the right part? Talk with a parts expert today.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
This 12V alternator is engineered to provide consistent and reliable electrical power for specific Onan commercial mobile generator sets. It serves as a direct replacement to ensure your battery remains charged and your electrical systems function properly during operation.
Key Features & Performance
- Steady Voltage Output: Maintains a stable 12V charge to the generator system.
- Durable Internal Components: Built with premium materials to withstand heat and vibration.
- Exact Mounting points: Designed for a straightforward installation process in the engine compartment.
- High Efficiency: Minimizes mechanical drag while maximizing electrical output.
Fitment & Compatibility
- Compatible Models: Onan Genset HDCAA, HDCAB, HDCAC, HDCAD
- Part Number(s): 187-1224
Technical Specifications
- Voltage: 12V
- Equipment Type: Diesel Generator Sets
- Application: Onan Commercial Mobile Series
Frequently Asked Questions
Q: How do I confirm this fits my specific generator? A: Verify that your current alternator part number matches 187-1224 or that your model is listed in the HDCAA-HDCAD series. Q: Does this include installation hardware? A: This unit includes the alternator as pictured; reuse of existing mounting hardware or pulleys may be required depending on the specific engine configuration.
Compatibility may vary by serial number. Verify fitment before purchase.