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Rectifier Regulator – Fits Suzuki DF70A/DF80A/DF90A/DF100B Outboards (Replaces 32800-87L00)

Sale price $75.00 Regular price $120.00
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Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This aftermarket Rectifier Regulator – Fits Suzuki DF70A/DF80A/DF90A/DF100B Outboards (Replaces 32800-87L00) is designed for reliable voltage regulation in Suzuki 4-stroke outboards from 70 to 100 HP, covering models DF70A, DF80A, DF90A, and DF100B for model years 2009–2023. It ensures your engine's electrical system receives stable power for optimal performance and battery charging.

This unit serves as a direct cross-reference for Suzuki OEM part numbers 32800-87L00 and 3280087L00, ensuring a precise fit and straightforward installation without modifications.

  • Engineered as a direct OEM-style replacement.
  • Features a durable aluminum housing with an integrated heat sink to effectively dissipate heat.
  • The package includes one complete rectifier and regulator assembly.

Part Number Matrix

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

Brand Part Number Notes
Suzuki 32800-87L00 Primary OEM Part Number
Suzuki 3280087L00 Alternative OEM Code

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Suzuki DF70A 70 4-Stroke 2009–2023 32800-87L00 Fits all transom lengths
Suzuki DF70ATH 70 4-Stroke 2009–2023 32800-87L00 Tiller handle version
Suzuki DF80A 80 4-Stroke 2009–2023 32800-87L00 Fits all transom lengths
Suzuki DF90A 90 4-Stroke 2009–2023 32800-87L00 Fits all transom lengths
Suzuki DF90ATH 90 4-Stroke 2009–2023 32800-87L00 Tiller handle version
Suzuki DF100B 100 4-Stroke 2018–2023 32800-87L00 Fits all transom lengths

Technical Specs

Product Type
Voltage Regulator/Rectifier
Installation
Direct OEM replacement
Housing Material
Aluminum with heat sink design
Package Dimensions
11.5 × 9.5 × 10.0 in (292 × 241 × 254 mm)
Weight
2 lbs (0.91 kg)

What’s in the Box

  • 1 x Rectifier & Regulator Assembly (32800-87L00)

Installation Notes

  1. Disconnect the battery terminals (negative first, then positive) to prevent electrical shorts.
  2. Locate the existing rectifier/regulator on the engine block. Note the placement and wire connections.
  3. Carefully unplug all electrical connectors from the old unit.
  4. Unbolt and remove the old rectifier/regulator from its mounting position.
  5. Clean the mounting surface to ensure a good ground connection and heat transfer.
  6. Bolt the new rectifier/regulator into place, ensuring it is secure.
  7. Reconnect the electrical connectors to the new unit, matching them to their original positions.
  8. Reconnect the battery terminals (positive first, then negative).
  9. Start the engine and test the charging system voltage with a multimeter to confirm proper operation (typically 13.5V–14.5V at idle).

Troubleshooting & FAQ

How do I know if my rectifier regulator is failing?

Common signs of a faulty rectifier regulator include a dead or weak battery, dimming or flickering lights, inconsistent engine performance, melting or burnt wiring near the unit, and a voltmeter reading that is too high (over 15V) or too low (under 13V) while the engine is running.

Is this a direct fit for my Suzuki DF90A?

Yes, this rectifier regulator is designed as a direct replacement for the Suzuki DF90A for model years 2009 through 2023. Always verify your OEM part number is 32800-87L00 and check the pictures against your original part before ordering.

What is the difference between this part and an original OEM part?

This is an aftermarket part designed to meet or exceed OEM specifications for fit, form, and function. It provides comparable performance and reliability to the original Suzuki part but at a more competitive price point.

How often should a rectifier regulator be replaced?

Rectifier regulators do not have a fixed replacement interval. They should be replaced only when they fail. Lifespan can be affected by factors like operating conditions, battery health, and exposure to moisture or extreme heat.

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

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • 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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