Ignition Key Switch Assembly – Fits Suzuki 8-225 HP (Replaces 37110-99E02, 37110-92E01)
Ignition Key Switch Assembly – Fits Suzuki 8-225 HP (Replaces 37110-99E02, 37110-92E01) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This Ignition Key Switch Assembly is a direct-fit replacement for Suzuki outboard engines, including 2-Stroke DT series (8–225 HP) from 1983–2003 and 4-Stroke DF series (9.9–140 HP) from 1996–2011. The assembly features a 3-position switch (Off-Run-Start) and an integrated push-to-choke function.
It provides a reliable interchange for numerous Suzuki and Sierra part numbers, including OEM references 37110-99E02 and 37110-92E01.
- Installs directly into the remote control box using a simple push-in terminal connection.
- Features a robust, sealed waterproof construction suitable for marine environments.
- Comes complete with a set of two matching keys.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Suzuki | 37110-99E02 |
| Suzuki | 37110-99E01 |
| Suzuki | 37110-99E00 |
| Suzuki | 37110-92E02 |
| Suzuki | 37110-92E01 |
| Suzuki | 37110-92E00 |
| Suzuki | 37110-94600 |
| Suzuki | 37110-94601 |
| Suzuki | 37110-94610 |
| Suzuki | 37110-94611 |
| Suzuki | 37110-94620 |
| Suzuki | 37110-95500 |
| Sierra | MP51010 |
| Sierra | MP51012 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This assembly fits the following Suzuki 2-Stroke outboard models:
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| 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 | 25 | 2-Stroke | 1983–1988 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT25C | 25 | 2-Stroke | 1989–2000 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT30 | 30 | 2-Stroke | 1983–1987 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT30C | 30 | 2-Stroke | 1988–1997 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT35 | 35 | 2-Stroke | 1987–1989 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT40 | 40 | 2-Stroke | 1984–1985 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT40C | 40 | 2-Stroke | 1986–1998 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | PU40 | 40 | 2-Stroke | 1989–1994 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT55 | 55 | 2-Stroke | 1985–1997 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | PU55 | 55 | 2-Stroke | 1989–1994 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT65 | 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 | 85 | 2-Stroke | 1983–2000 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | PU85 | 85 | 2-Stroke | 1989–1997 | 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 | 140 | 2-Stroke | 1983–2001 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | PU140 | 140 | 2-Stroke | 1989–1997 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT150 | 150 | 2-Stroke | 1986–2003 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT150SS | 150 | 2-Stroke | 1986 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT150S | 150 | 2-Stroke | 1987–1997 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT150G | 150 | 2-Stroke | 1987–2003 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT150EFI | 150 | 2-Stroke | 1987–1997 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT150STC | 150 | 2-Stroke | 1998–2003 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT175 | 175 | 2-Stroke | 1987–1992 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT200 | 200 | 2-Stroke | 1986–2000 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT200S | 200 | 2-Stroke | 1987–1997 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT200G | 200 | 2-Stroke | 1987–2000 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT200EFI | 200 | 2-Stroke | 1987–1997 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT225 | 225 | 2-Stroke | 1990–2003 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DT225G | 225 | 2-Stroke | 1998–2003 | 37110-92E00/92E01/99E00/99E01/99E02 |
It is also compatible with these Suzuki 4-Stroke outboard engines:
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| 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 | 140 | 4-Stroke | 2002–2011 | 37110-92E00/92E01/99E00/99E01/99E02 | |
| Suzuki | DF140T | 140 | 4-Stroke | 2002–2011 | 37110-92E00/92E01/99E00/99E01/99E02 |
Technical Specs
- 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
- Housing Color
- Black
- Operating Positions
- 3-position: Off-Run-Start
- Features
- Push to choke functionality, Sealed waterproof construction, comes with 2 keys
- Warranty
- 1 year (manufacturer dependent)
What’s in the Box
- 1 x Ignition Key Switch Assembly (Replaces 37110-99E02)
- 2 x Ignition Keys
Installation Notes
- Ensure the engine is off and disconnect the boat's battery to prevent electrical shorts.
- Access the rear of the remote control box or ignition panel where the switch is mounted.
- Carefully note or photograph the existing wire connections before disconnecting the old switch.
- Remove the retaining nut or clip and pull the old ignition switch out from the panel.
- Insert the new ignition switch assembly, securing it firmly in place with its mounting hardware.
- Reconnect the wires to the appropriate terminals on the new switch, matching the original configuration.
- Reconnect the battery and test all key positions (Off, Run, Start) and the push-to-choke function before starting the engine.
Troubleshooting & FAQ
How do I use the push-to-choke feature?
While the key is in the 'Run' position, simply push the key inward. This activates the choke circuit, which aids in starting a cold engine. Release the key once the engine starts to run smoothly.
Is this a plug-and-play installation?
Yes, for the models listed in the compatibility charts. This assembly uses a push-in terminal connection designed to match the Suzuki OEM wiring harness, making it a direct replacement without needing to cut or splice wires.
What are common signs of a failing ignition switch?
Symptoms of a bad switch include the engine failing to start, intermittent power loss to the console or engine while running, the key feeling loose or failing to turn smoothly between positions, or the starter not disengaging after the engine starts.
Will this fit my engine if my model isn't listed?
We only guarantee a fit for the specific engine models and years shown in the compatibility tables. If your model is not listed, do not purchase this part. Always compare the photos and specifications to your original part to ensure a perfect match.
What is the difference between an OEM and aftermarket part?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and designed to perform as a reliable equivalent. Our parts are manufactured in an ISO 9002 facility and batch-inspected for consistency.
What are your shipping speeds and costs?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free for most orders; any available expedited options and their costs will be shown at checkout.
What is the warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their 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.
Payment & Security
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