Regulator / Rectifier for Suzuki Outboards

High-quality marine-grade aftermarket voltage regulator / rectifier for selected Suzuki DF40 and DF50 4-stroke outboard engines.

Suitable for the original DF40 / DF50 engine generation, approximately 1999–2010, depending on exact model and serial number.

Suitable for:

40 HP – DF40
50 HP – DF50
4 Stroke
1999–2010 selected models

Replaces Suzuki Part Numbers

32800-87J00
32800-87J10
32800-87J10-000

Also searchable as:

3280087J00
3280087J10
3280087J10000

Fits Selected Suzuki 4-Stroke Outboards

40 HP – DF40

Suitable for selected original-generation:

Suzuki DF40 – 4 Stroke – 1999–2010

Including selected model variations such as:

DF40QHL
DF40TL
DF40TS
DF40QHLK1
DF40QHLK2
DF40TLK1
DF40TLK2
DF40TLK3
DF40TLK4
DF40TLK5
DF40TLK6
DF40TLK7
DF40TLK8
DF40TLK9
DF40TLK10

Exact model designation varies according to year and market.

50 HP – DF50

Suitable for selected original-generation:

Suzuki DF50 – 4 Stroke – 1999–2010

Including selected model variations such as:

DF50QHL
DF50TL
DF50QHLK1
DF50QHLK2
DF50TLK1
DF50TLK2
DF50TLK3
DF50TLK4
DF50TLK5
DF50TLK6
DF50TLK7
DF50TLK8
DF50TLK9
DF50TLK10

Exact model designation varies according to year and market.

⚠️ IMPORTANT – NOT FOR DF40A / DF50A

This regulator is for selected original DF40 and DF50 models.

It is NOT suitable for the later:

DF40A
DF50A

The later A-series engines use a different regulator / rectifier system.

Please do not assume that a 40 HP or 50 HP Suzuki automatically uses this regulator.

Product Features

Marine-grade aftermarket regulator / rectifier
Suitable for selected Suzuki DF40 and DF50 outboards
4-stroke applications
Original DF40 / DF50 generation
Replacement for 32800-87J00
Replacement for 32800-87J10
Helps regulate charging-system voltage
Rectifies charging-system output
Direct replacement for compatible applications
New aftermarket replacement component

Additional Johnson / Evinrude Cross Reference

This Suzuki regulator family was also used on selected Johnson / Evinrude 40 HP and 50 HP 4-stroke outboards based on Suzuki engines.

Cross-reference numbers include:

5032615
5031465

If purchasing for a Johnson or Evinrude outboard, please check the original part number and complete engine model before ordering.

⚠️ Important – Check Before Ordering

Do NOT order this regulator by horsepower or appearance alone.

Suzuki used different regulator / rectifier assemblies depending on engine generation, model and serial number.

Before purchasing, please check:

Engine horsepower
Exact engine model
DF40 / DF50 – not DF40A / DF50A
Model year
Engine serial number
Original regulator part number
Electrical connectors
Number of wires / plugs
Mounting arrangement

Ideally, match your original regulator to:

32800-87J00

or

32800-87J10

If the regulator looks the same as the one fitted to your engine, this does not always mean it is the correct regulator for your outboard.

If you are unsure, contact SSI Marine with your complete engine model and serial number before purchasing.

Important When Replacing a Failed Regulator

If your original regulator / rectifier has failed, we recommend checking the charging system before fitting the replacement.

Check:

Battery condition
Battery terminals
Earth / ground connections
Stator output
Wiring condition
Electrical plugs and connectors
Burnt, melted or corroded terminals

Any charging-system faults or damaged connections should be repaired before installing the new regulator.

Aftermarket Replacement Part

This is a high-quality marine-grade aftermarket replacement part.

It is not a genuine Suzuki component.

OEM manufacturer names and part numbers are provided for identification and compatibility reference only.

The regulator / rectifier is designed as a replacement for the applicable Suzuki part numbers listed above.

Buyer Responsibility

It is the buyer's responsibility to confirm that this part is suitable for their particular outboard before installation.

Please check compatibility using your:

Engine model
Horsepower
Serial number
Original regulator part number

If you are unsure, contact SSI Marine before ordering. Our technical team will be happy to help identify the correct part.

Why Buy From SSI Marine?

Marine-grade aftermarket & OEM-spec parts
Workshop-tested products
More than 10 years supplying and working with outboard engines
Same-day dispatch before 1 PM Monday–Friday
Royal Mail Tracked 24
UK stock
Collection available from Leigh, Greater Manchester
Technical support from experienced outboard specialists
Workshop open Monday–Friday, 9 AM–5 PM

40 HP 50 HP Suzuki Outboard DF40 DF50 4 Stroke Regulator Rectifier 32800-87J10