Ignition Key Switch – Fits Suzuki 8–225 HP Outboard Engines (Replaces 37110-99E02, 37110-99E01, 37110-99E00)
Ignition Key Switch – Fits Suzuki 8–225 HP Outboard Engines (Replaces 37110-99E02, 37110-99E01, 37110-99E00) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Ignition Key Switch – Fits Suzuki 8–225 HP Outboard Engines (Replac...
Ignition Key Switch – Fits Suzuki 8–225 HP Outboard Engines (Replaces 37110-99E02, 37110-99E01, 37110-99E00) is backordered and will ship as soon as it is back in stock.
Product Details
This ignition key switch assembly is an aftermarket replacement for selected Suzuki outboard remote control systems. It is designed for the Suzuki DT 2-Stroke and DF 4-Stroke models listed below, with Off, Run, and Start positions plus push-to-choke functionality.
Reference numbers associated with this replacement include Suzuki 37110-99E02, 37110-99E01, 37110-99E00, 37110-92E02, 37110-92E01, and 37110-92E00, as well as Sierra MP51010 and MP51012. Confirm the part number, connector arrangement, engine model, and year before ordering.
- Designed for installation in a compatible Suzuki remote control box.
- Black plastic-and-metal ignition switch assembly for marine applications.
- Includes two keys for immediate use.
- Push-to-choke function for compatible control systems.
Part Number Matrix
Use these references to compare the replacement with your existing switch. Part-number references do not replace verification of the connector and control-box configuration.
| Brand | Part Number |
|---|---|
| Suzuki | 37110-99E02 |
| Suzuki | 37110-99E01 |
| Suzuki | 37110-99E00 |
| Suzuki | 37110-92E02 |
| Suzuki | 37110-92E01 |
| Suzuki | 37110-92E00 |
| Sierra | MP51010 |
| Sierra | MP51012 |
Engine & Model Compatibility
The following model and year applications are provided as compatibility references. Verify your exact engine model, production year, serial number, original switch, and connector configuration before installation.
Suzuki 2-Stroke Outboard Motors
| Brand | Model | Rated HP | Stroke | Years | Notes |
|---|---|---|---|---|---|
| Suzuki | DT8 | 8 | 2-Stroke | 1988–1997 | |
| Suzuki | DT9.9 | 9.9 | 2-Stroke | 1988–1997 | |
| Suzuki | DT15 | 15 | 2-Stroke | 1989–1997 | |
| Suzuki | DT20 | 20 | 2-Stroke | 1986–1988 | |
| Suzuki | DT25 | 25 | 2-Stroke | 1983–1988 | |
| Suzuki | DT25C | 25 | 2-Stroke | 1989–2000 | |
| Suzuki | DT30 | 30 | 2-Stroke | 1983–1987 | |
| Suzuki | DT30C | 30 | 2-Stroke | 1988–1997 | |
| Suzuki | DT35 | 35 | 2-Stroke | 1987–1989 | |
| Suzuki | DT40 | 40 | 2-Stroke | 1984–1985 | |
| Suzuki | DT40C | 40 | 2-Stroke | 1986–1998 | |
| Suzuki | DT55 | 55 | 2-Stroke | 1985–1997 | |
| Suzuki | DT65 | 65 | 2-Stroke | 1985–1997 | |
| Suzuki | DT75 | 75 | 2-Stroke | 1983–1997 | |
| Suzuki | DT85 | 85 | 2-Stroke | 1983–2000 | |
| Suzuki | DT90 | 90 | 2-Stroke | 1989–1997 | |
| Suzuki | DT100 | 100 | 2-Stroke | 1989–2000 | |
| Suzuki | DT115 | 115 | 2-Stroke | 1983–2001 | |
| Suzuki | DT140 | 140 | 2-Stroke | 1983–2001 | |
| Suzuki | DT150 | 150 | 2-Stroke | 1986–2003 | Includes DT150S, DT150G, DT150EFI, and DT150STC variants |
| Suzuki | DT175 | 175 | 2-Stroke | 1987–1992 | |
| Suzuki | DT200 | 200 | 2-Stroke | 1986–2000 | Includes DT200S, DT200G, and DT200EFI variants |
| Suzuki | DT225 | 225 | 2-Stroke | 1990–2003 | Includes DT225G variant |
Suzuki 4-Stroke Outboard Motors
| Brand | Model | Rated HP | Stroke | Years | Notes |
|---|---|---|---|---|---|
| Suzuki | DF9.9 | 9.9 | 4-Stroke | 1996–2011 | |
| Suzuki | DF15 | 15 | 4-Stroke | 1996–2011 | |
| Suzuki | DF25 | 25 | 4-Stroke | 2000–2007 | |
| Suzuki | DF30 | 30 | 4-Stroke | 2000–2007 | |
| Suzuki | DF40 | 40 | 4-Stroke | 1999–2010 | |
| Suzuki | DF50 | 50 | 4-Stroke | 1999–2010 | |
| Suzuki | DF60 | 60 | 4-Stroke | 1998–2009 | |
| Suzuki | DF70 | 70 | 4-Stroke | 1998–2009 | |
| Suzuki | DF90 | 90 | 4-Stroke | 2001–2004 | |
| Suzuki | DF115 | 115 | 4-Stroke | 2001–2004 | |
| Suzuki | DF140 | 140 | 4-Stroke | 2002–2011 | Includes DF140Z and DF140T variants |
Technical Specs
- Product Type
- Ignition key switch assembly
- Installation Location
- Compatible remote control box
- Fuel Type
- Gasoline
- Connection
- Push-in terminal connection
- Housing Material
- Plastic and metal
- Housing Color
- Black
- Operating Positions
- 3-position: Off, Run, Start
- Additional Function
- Push-to-choke on compatible systems
- Product Type
- Aftermarket replacement, not an OEM component
What’s in the Box
- 1 × Ignition key switch assembly
- 2 × Keys
Installation Notes
- Disconnect power: Turn off the battery master switch or disconnect the negative battery terminal before beginning work.
- Access the switch: Open the compatible remote control box housing and locate the back of the existing ignition switch.
- Document the wiring: Photograph or label each wire and terminal before disconnecting the old switch.
- Remove the old switch: Remove the retaining nut from the control-box panel and take out the old switch.
- Install the replacement: Position the new switch, secure the retaining nut, and reconnect the wires to the matching terminals.
- Test operation: Restore battery power and test Off, Run, Start, and push-to-choke operation where applicable before closing the control box.
Troubleshooting & FAQ
Does this switch fit all Suzuki models?
No. It is intended for the Suzuki DT 2-Stroke and DF 4-Stroke applications listed in the compatibility tables. Verify the exact model, year, serial number, original switch, and connector configuration before ordering.
What does push-to-choke mean?
Push-to-choke means that pressing the ignition key inward activates the choke or primer circuit on a compatible engine and control system. This function is not universal across all applications.
What are common signs of a failing ignition switch?
Possible symptoms include intermittent gauge or ignition power, unexpected engine stalling, difficulty turning the key, or a starter that does not engage in the Start position. Test the wiring and related circuits before replacing the switch.
Will my old key fit this replacement?
No. This assembly includes two replacement keys. The original keys normally will not operate the new switch.
Can I install this part myself?
Installation requires disconnecting the battery and correctly identifying the switch terminals. Professional installation is recommended if you are not experienced with marine electrical systems.
Is this an OEM switch?
No. This is an aftermarket replacement. The listed Suzuki and Sierra numbers are reference numbers for comparison and compatibility verification.
Safety & Important Information
- Disconnect battery power before removing or wiring the ignition switch.
- Compare the replacement with your original switch, terminals, connector, and mounting arrangement before purchase.
- Do not rely on horsepower alone to confirm compatibility; model, year, serial range, stroke, and control-box configuration must also match.
- Stop installation if the wiring, terminals, or switch layout differs from the original component.
About Sea Sierra
- Marine replacement parts — We supply aftermarket components for repair and maintenance applications.
- Application-focused listings — Check model, year, reference number, and component configuration before ordering.
- Support for fitment questions — Provide your engine model and original-part details when requesting assistance.
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