Ignition Key Switch – Fits Suzuki 2 & 4-Stroke 8-225 HP Outboard Motors (Replaces 37110-99E02)
This ignition key switch assembly is a direct-fit replacement for a wide range of Suzuki outboard motors. It is designed for use with remote control box installations and ensures reliable Off-Run-Start operation with an integrated push-to-choke function.
This component directly replaces Suzuki part numbers 37110-99E02, 37110-99E01, 37110-99E00, 37110-92E02, 37110-92E01, and 37110-92E00, as well as Sierra MP51010 and MP51012.
- Compatible with gasoline-fueled Suzuki 2-stroke (8–225 HP) and 4-stroke (9.9–140 HP) engines.
- Features a sealed, waterproof construction with a simple push-in terminal connection.
- The package includes one ignition switch assembly and two keys.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| 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 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Suzuki owners, You can review exploded diagrams here to verify part numbers: Suzuki Parts Diagrams & Catalog.
Suzuki 2-Stroke Outboard Engines
| Brand |
Model |
Rated HP |
Stroke |
Years |
OEM Part No. |
| Suzuki |
DT8C |
8 |
2-Stroke |
1988-1997 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT9.9C |
9.9 |
2-Stroke |
1988-1997 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT15C |
15 |
2-Stroke |
1989-1997 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT20 |
20 |
2-Stroke |
1986-1988 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT25, DT25C |
25 |
2-Stroke |
1983-2000 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT30, DT30C |
30 |
2-Stroke |
1983-1997 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT35 |
35 |
2-Stroke |
1987-1989 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT40, DT40C, PU40 |
40 |
2-Stroke |
1984-1998 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT50 |
50 |
2-Stroke |
1984-1998 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT55, PU55 |
55 |
2-Stroke |
1985-1997 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT60, DT65 |
60-65 |
2-Stroke |
1985-1997 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT75 |
75 |
2-Stroke |
1983-1997 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT85, PU85 |
85 |
2-Stroke |
1983-2000 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT90 |
90 |
2-Stroke |
1989-1997 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT100 |
100 |
2-Stroke |
1989-2000 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT115 |
115 |
2-Stroke |
1983-2001 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT140, PU140 |
140 |
2-Stroke |
1983-2001 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT150, DT150S, DT150G, DT150EFI, DT150STC |
150 |
2-Stroke |
1986-2003 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT175 |
175 |
2-Stroke |
1987-1992 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT200, DT200S, DT200G, DT200EFI |
200 |
2-Stroke |
1986-2000 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DT225, DT225G |
225 |
2-Stroke |
1990-2003 |
37110-92E00/92E01/99E00/99E01/99E02 |
Suzuki 4-Stroke Outboard Engines
| Brand |
Model |
Rated HP |
Stroke |
Years |
OEM Part No. |
| Suzuki |
DF9.9 |
9.9 |
4-Stroke |
1996-2011 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DF15 |
15 |
4-Stroke |
1996-2011 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DF25 |
25 |
4-Stroke |
2000-2007 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DF30 |
30 |
4-Stroke |
2000-2007 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DF40 |
40 |
4-Stroke |
1999-2010 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DF50 |
50 |
4-Stroke |
1999-2010 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DF60 |
60 |
4-Stroke |
1998-2009 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DF70 |
70 |
4-Stroke |
1998-2009 |
37110-92E00/92E01/99E00/99E01/99E02 |
| Suzuki |
DF140Z, DF140T |
140 |
4-Stroke |
2002-2011 |
37110-92E00/92E01/99E00/99E01/99E02 |
Technical Specifications
| Specification |
Value |
| Product Type |
Ignition Key Switch Assembly |
| Installation |
Remote Control Box |
| Fuel Type |
Gasoline |
| Connection |
Push-in terminal connection |
| Housing Material |
High-strength plastic and metal |
| Dimensions |
90 × 30 × 30 mm (3.54 × 1.18 × 1.18 inches) |
| Operating Positions |
3-position: Off-Run-Start |
| Current Rating |
24 Amps |
| Operating Voltage |
12 Volts |
| Special Features |
Push-to-choke functionality, Sealed waterproof construction |
| Warranty |
1 year (manufacturer dependent) |
Package Contents
- 1 x Ignition Key Switch Assembly (Replaces 37110-92E01/37110-99E01)
- 2 x Ignition Keys
Installation Guide
-
Safety First: Disconnect the boat's battery by removing the negative terminal to prevent electrical shorts.
-
Access the Switch: Open the remote control box or access the panel where the current ignition switch is mounted.
-
Document Wiring: Before disconnecting, take a clear photo of the wiring connections on the back of the old switch.
-
Disconnect Old Switch: Carefully unplug the main wiring harness connector from the switch.
-
Remove Old Switch: Unscrew the retaining nut on the front of the switch and remove it from its mounting hole.
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Install New Switch: Insert the new ignition switch into the mounting hole and secure it with its retaining nut.
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Connect Wiring: Plug the wiring harness securely into the new switch, referencing the photo from step 3 to ensure connections are correct.
-
Reconnect Battery: Re-attach the negative terminal to the battery.
-
Test Operation: Test all key positions (Off, Run, Start) and the push-to-choke function to ensure everything works correctly before heading out on the water.
Troubleshooting & FAQ
Q: How do I confirm this fits my engine?
A: The best way to ensure fitment is to cross-reference your engine's model and year with the compatibility tables provided on this page. Additionally, verify that your old part number matches one of the direct replacement numbers listed, such as 37110-99E02 or 37110-92E01.
Q: What are the common signs of a failing ignition switch?
A: Key indicators include difficulty starting the engine, intermittent power loss to the console or gauges, the key feeling loose or getting stuck in a position, or the engine stalling unexpectedly while running. A faulty switch can prevent the engine from starting at all.
Q: Does this ignition switch include the push-to-choke feature?
A: Yes, this model comes with the push-to-choke functionality built-in, which is required for many compatible Suzuki outboard models.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.