This alternator is a direct OEM-fit replacement for Honda BF115 and BF130 outboard engines. It is a 12 volt, 55 amp unit with clockwise rotation, built on a 4-groove serpentine pulley with a 62mm outside diameter to match the original fitment.
The unit is internally regulated (IR) with an internal fan (IF), using the original square plug connector and terminal layout so it can be fitted with no wiring changes. Restoring correct alternator output on these outboards is important for reliable engine management, trim and accessory operation, particularly on boats that rely on the charging system to keep the battery topped up between trips.
Key Features
- 12V, 55 Amp output
- Clockwise rotation
- 4-groove pulley (S4 class), 62mm OD
- Internally regulated with internal fan
- Square plug connector matching original terminal layout
Technical Specs
| Specification |
Detail |
| Voltage |
12V |
| Amperage |
55A |
| Rotation |
Clockwise (CW) |
| Pulley |
4-groove (S4 class), 62mm OD |
| Regulator |
Internally regulated (IR), 026000-7180 / 126000-2700 |
| Fan Type |
Internal (IF) |
| Connector |
Square plug |
Vehicle Fitment Guide
Years shown are the overall coverage span for this part. Please confirm against the OEM part number on your original unit before ordering.
| Make & Model |
Years |
| Honda BF115 |
1999-2010 |
| Honda BF115 |
2019 |
| Honda BF130 |
1999-2004 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 31630-ZW5-003, CGH72 |
Honda |
| 101211-2710 |
Denso |
| AND0536 |
Arrowhead |
| 8M6007472 |
Quicksilver |
| 12755 |
Lester |
Frequently Asked Questions
Will this alternator fit my outboard without modification?
Yes, it is built to the original Honda BF115/BF130 specification and fits using the factory mounting points, pulley and plug.
What is included?
One complete alternator unit, ready to fit.
How do I know my old alternator has failed?
Signs include a charging warning light on the gauge, low battery voltage, or the battery failing to hold charge after a run.
Does this replace the regulator as well?
Yes, this is a complete unit including its regulator, so no separate regulator purchase is needed.
Can I fit this myself?
Most owners can fit this alternator with basic hand tools by following the same steps used to remove the original unit; if in doubt, have it fitted by a qualified marine mechanic.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
