Rectifier Regulator – Fits Suzuki DF90/100/115/140HP Outboards (Replaces 32800-90J00)

$45.00 $72.00

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Product Details

This aftermarket Rectifier Regulator – Fits Suzuki DF90/100/115/140HP Outboards (Replaces 32800-90J00) is designed for reliable performance on Suzuki 4-Stroke outboards from 90 to 140 HP, specifically covering models from 2001–2011. It serves as a crucial component for converting AC current from the stator into DC current to charge the battery and power the engine's electrical system.

Engineered as a direct replacement, this unit provides an interchange for Suzuki OEM part numbers 32800-90J00 and 32800-90J30, ensuring a precise fit and function.

Features a simple plug-and-play installation with an OEM-compatible multi-pin connector.
Constructed with a robust die-cast aluminum housing and an improved heat sink design for superior heat dissipation.
Offers enhanced charging capabilities compared to original factory units for better electrical system stability.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand	Part Number	Notes
Suzuki	32800-90J00	Original Part Number
Suzuki	32800-90J30	Superseded Part Number

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Suzuki outboard motors, verify your model, year, and serial number range to ensure a correct match. Compatibility is critical for proper electrical function.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.	Notes
Suzuki	DF90	90	4-Stroke	2001–2011	32800-90J00/32800-90J30	Serial #09001F-151001 through 10001F-980001
Suzuki	DF100	100	4-Stroke	2009–2011	32800-90J00/32800-90J30	Serial #10001F-980001 through 10002F-110001
Suzuki	DF115	115	4-Stroke	2001–2011	32800-90J00/32800-90J30	Serial #11501F-151001 through 11502F-110001
Suzuki	DF140	140	4-Stroke	2002–2011	32800-90J00/32800-90J30	Serial #14001F-251001 through 14002F-110001
Suzuki	DF115Z	115	4-Stroke	2008–2011	32800-90J00/32800-90J30	Serial #11501Z-880001 through 11502Z-110001
Suzuki	DF140Z	140	4-Stroke	2002–2011	32800-90J00/32800-90J30	Serial #14001Z-251001 through 14002Z-110001

Technical Specs

Product Type: Rectifier Regulator
Installation: Direct replacement plug-and-play
Connection: Multi-pin connector (OEM-compatible)
Housing Material: Die-cast aluminum with heat sink design
Housing Color: Black
Product Dimensions: 39.5 × 11.5 × 7.0 in (1003 × 292 × 178 mm)
Weight: 3 lbs (1.36 kg)
Fitting Type: Direct bolt-on
Warranty: 1 Year (Aftermarket); 60-Day Return (Some vendors)
Other Technical Attributes: Improved heat sink and charging capabilities compared to OEM

What’s in the Box

1 x Rectifier Regulator (32800-90J00)

Installation Notes

Disconnect the battery terminals, starting with the negative (-) cable.
Locate and identify the old rectifier regulator on the engine block.
Carefully unplug all electrical connectors attached to the unit.
Unscrew the mounting bolts and remove the old rectifier regulator from the engine.
Clean the mounting surface to ensure a solid connection and effective heat transfer.
Position the new rectifier regulator and secure it with the original mounting bolts.
Firmly reconnect the electrical connectors to the new unit.
Reconnect the battery terminals, starting with the positive (+) cable.
Start the engine and use a multimeter to verify the charging system voltage at the battery (typically 13.5–14.5V).

Troubleshooting & FAQ

How do I know if my rectifier regulator has failed?

Common signs of failure include an undercharged or dead battery, dimming lights at idle, an erratic tachometer, or frequent stalling. You can test the charging system output at the battery terminals with a multimeter; a healthy system should read between 13.5 and 14.5 volts while the engine is running above idle.

Is this a direct plug-and-play replacement?

Yes, this rectifier regulator is designed as a direct-fit replacement. It uses the factory mounting locations and features an OEM-compatible electrical connector, requiring no modifications for installation.

What is the difference between part 32800-90J00 and 32800-90J30?

The part number 32800-90J30 is an official supersession for 32800-90J00. They are functionally identical, but this aftermarket version often includes an improved heat sink design for better long-term reliability compared to the original part.

Why is my engine's serial number important for fitment?

Manufacturers often make design changes during a production run. The serial number is the most accurate way to identify your specific engine build and ensure the part you order is correct, even if the model and year appear to match. Always cross-reference the serial number ranges in the compatibility table.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
This is an aftermarket replacement, not an OEM component.
Professional installation is recommended for safety and performance.

About Sea Sierra

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Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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