Alternator Hardin Marine Motorola Universal Atomic 4 New Holland L445 12V 37A
Alternator Hardin Marine Motorola Universal Atomic 4 New Holland L445 12V 37A
SKU:400-16128
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Marine & Industrial Alternator
Fits Hardin Marine, Atomic 4 & New Holland (37 Amp)
Ensure reliable power on the water or the job site with this high-quality **Marine Grade Alternator**. Designed to replace the classic **Motorola-style** alternators, this unit is a perfect fit for **Hardin Marine**, **Jacuzzi Jet**, **Universal Atomic 4**, and **Westerbeke** marine engines, as well as **New Holland L445** skid steer loaders.
This **Ignition Protected** alternator is safe for use in gas engine compartments, preventing spark hazards. It features a **37 Amp** output and a **Bi-Directional fan**, allowing it to cool effectively regardless of engine rotation.
Key Features
- ✔ Marine Grade: Ignition protected design.
- ✔ Direct Replacement: Fits 1-foot and 2-foot mounts.
- ✔ Bi-Directional: Cools in CW or CCW rotation.
- ✔ Includes Pulley: Single V-Groove installed.
Technical Specs
| Voltage: | 12 Volts |
| Amperage: | 37 Amps |
| Rotation: | Bi-Directional |
| Regulator: | Internal (IR) |
| Mounting: | 1" or 2" Spool (Adjustable) |
| SKU Reference: | 400-16128 |
Vehicle Fitment Guide
| Make | Model / Application | Years |
|---|---|---|
| Hardin Marine | Jet Boat Engines | Various |
| Universal | Atomic 4 (Marine Engine) | Various |
| New Holland | L445 Skid Steer | 1975 - 1983 |
| Westerbeke | Marine Generators | Various |
| Motorola | Marine Alternator Replacements | MR Series |
OEM Part Number Cross Reference
| Motorola | 8MR2039K, 8MR2023F, 8MR2039, 8MR2024F |
| Prestolite | 110-255, 110-258, 110-555 |
| Arco Marine | 20102 |
| New Holland | 489807 |
Frequently Asked Questions
Is this alternator ignition protected?
Yes, this unit is SAE J1171 Ignition Protected, making it safe for use in marine engine compartments where gasoline fumes may be present.
Will it fit my Atomic 4 engine?
Yes, this Motorola-style alternator is a very common replacement for the Universal Atomic 4 marine engine. It typically mounts using a 1-inch or 2-inch spool foot (spacers are often included or adjustable).
Does it need an external regulator?
No, this alternator has a built-in **Internal Regulator**, simplifying the wiring. It usually requires just a battery wire and an ignition/excite wire.
Note: Please check your mounting bracket width (1 inch or 2 inch) before ordering.
Fast shipping available across the UK and Europe.
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