300-03587 0585001 0584476 Rectifier Regulator for Johnson Evinrude | JLM Marine

Rectifier Regulator for Johnson Evinrude Outboard Engines – 40HP to 105HP (1992-2005)

This rectifier regulator is engineered to fit a wide range of Johnson and Evinrude outboard motors from 35HP to 105HP, covering model years 1992 through 2005. Designed as a direct replacement for OEM components, this unit ensures reliable voltage regulation and battery charging performance across multiple engine configurations.

This aftermarket regulator rectifier directly replaces OEM part numbers 0585001, 0584476, 0777676, and 300-03587, as well as aftermarket equivalents 18-5827, 9-17202, and 193-4476. It provides dependable electrical system protection for your outboard.

• Direct bolt-on replacement for original equipment
• Ensures stable charging voltage to protect batteries and electrical components
• Compatible with multiple horsepower ratings from 35HP to 105HP

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands:

Compatible Engine Models

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here's a guide to help you identify your engine's serial/model: Johnson Serial Number Guide.

Technical Specifications

Package Contents

Each package contains:

• 1 × Regulator Rectifier

Installation Guide

1. Disconnect the battery – Remove the negative terminal first to prevent electrical shorts during installation.
2. Locate the existing rectifier regulator – It is typically mounted on the engine block or transom bracket. Refer to your service manual if needed.
3. Disconnect the wiring harness – Carefully unplug all electrical connectors from the old regulator, noting their positions.
4. Remove mounting bolts – Unscrew the bolts securing the old rectifier regulator to the engine.
5. Clean the mounting surface – Ensure good thermal contact by removing any corrosion or debris from the mounting area.
6. Position the new rectifier regulator – Align it with the existing mounting holes and secure with the original bolts.
7. Reconnect all wiring harness connectors – Match each plug to its corresponding socket, ensuring a firm connection.
8. Reconnect the battery – Attach the negative terminal last and ensure all connections are tight.
9. Test the charging system – Start the engine and use a multimeter to verify proper voltage output (typically 13.5–14.5V at running RPM).
10. Inspect for overheating – After a short test run, check that the regulator is not excessively hot to the touch.

Troubleshooting & FAQ

Q: How do I confirm this rectifier regulator fits my Johnson or Evinrude engine?
A: Cross-reference your engine's horsepower and year with the compatibility table above. You can also check your current regulator's part number against the list of replaced OEM numbers (0585001, 0584476, 0777676, 300-03587) to ensure a match.

Q: What are the symptoms of a failing rectifier regulator?
A: Common signs include a dead or weak battery, inconsistent charging voltage, flickering gauges or lights, and difficulty starting the engine. If you measure less than 13V or more than 15V at the battery while running, the regulator may be faulty.

Q: How often should I replace my rectifier regulator?
A: Rectifier regulators typically last several years under normal use. Replace it when you experience charging system failures or during routine electrical system maintenance. Inspect connections and mounting regularly to prevent premature wear.

Q: Can I install this myself or do I need a mechanic?
A: If you are comfortable with basic electrical work and have the proper tools, installation is straightforward—disconnect the battery, swap the unit, and reconnect the wiring. However, if you're unfamiliar with marine electrical systems, professional installation is recommended.

Q: Is this an OEM part or aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.