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Ignition Key Switch Assembly – Fits Suzuki 8-225 HP (Replaces 37110-99E02, 37110-92E01)

Regular price $25.99
Shipping calculated at checkout.

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.


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

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

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

  1. Ensure the engine is off and disconnect the boat's battery to prevent electrical shorts.
  2. Access the rear of the remote control box or ignition panel where the switch is mounted.
  3. Carefully note or photograph the existing wire connections before disconnecting the old switch.
  4. Remove the retaining nut or clip and pull the old ignition switch out from the panel.
  5. Insert the new ignition switch assembly, securing it firmly in place with its mounting hardware.
  6. Reconnect the wires to the appropriate terminals on the new switch, matching the original configuration.
  7. 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.

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