M-Y Wedge Outboard Motor Support for 3-RAM Trim/Tilt Systems – Mercury, Yamaha, Evinrude/Johnson, Honda, Suzuki & Tohatsu
M-Y Wedge Outboard Motor Support for 3-RAM Trim/Tilt Systems – Mercury, Yamaha, Evinrude/Johnson, Honda, Suzuki & Tohatsu is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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M-Y Wedge Outboard Motor Support for 3-RAM Trim/Tilt Systems – Merc...
M-Y Wedge Outboard Motor Support for 3-RAM Trim/Tilt Systems – Mercury, Yamaha, Evinrude/Johnson, Honda, Suzuki & Tohatsu is backordered and will ship as soon as it is back in stock.
Product Details
This M-Y Wedge Outboard Motor Support forms a cushioned, stable platform for safe and dependable boat trailering. Constructed from EPDM rubber and high-tech plastic, it is designed to fit over an outboard trim/tilt piston on compatible Mercury, Yamaha, Evinrude/Johnson, Honda, Suzuki, and Tohatsu outboard motors equipped with a 3-RAM trim/tilt system. The wedge helps prevent trailer shock and provides support during transport.
This is an aftermarket replacement for the Sea Sierra reference M-YM123 and HeuroFosh reference 23TS.
- Fits over a compatible outboard trim/tilt piston for straightforward installation.
- Made from UV-protected, saltwater-resistant materials for durable marine use.
- Designed for compatible 3-RAM trim/tilt systems across several major outboard brands.
Part Number Cross-Reference
Use these aftermarket reference numbers when comparing replacement options. Confirm your engine configuration before ordering.
| Brand or Supplier | Reference Number |
|---|---|
| Sea Sierra | M-YM123 |
| HeuroFosh | 23TS |
Engine & Model Compatibility
This support is intended for compatible outboard motors equipped with a 3-RAM trim/tilt system. Model, horsepower, stroke, and trim/tilt configuration can vary within each brand, so verify the physical arrangement of your engine before installation.
| Brand | Model or Configuration | Rated HP | Stroke | Reference | Notes |
|---|---|---|---|---|---|
| Mercury | Outboards with 3-RAM trim/tilt | 135–300 HP | 2- & 4-Stroke | M-YM123 | Includes listed Pro XS configurations with a compatible 3-RAM system. |
| Yamaha | Standard and SHO outboards with a compatible 3-RAM system | 115–350 HP | 2- & 4-Stroke | M-YM123 | Verify the trim/tilt arrangement before ordering. |
| Evinrude/Johnson | Outboards with 3-RAM trim/tilt | 150–300 HP | 2- & 4-Stroke | M-YM123 | Not intended for Generation 2 configurations listed as incompatible. |
| Honda | Outboards with 3-RAM trim/tilt | 90–300 HP | 4-Stroke | M-YM123 | Confirm the piston and bracket arrangement. |
| Suzuki | Compatible four-stroke outboards | DF140–DF350 | 4-Stroke | M-YM123 | Confirm the engine has the required 3-RAM trim/tilt configuration. |
| Tohatsu | Outboards with 3-RAM trim/tilt | 115–250 HP | 2- & 4-Stroke | M-YM123 | A trim limiter may require adjustment for proper wedge seating. |
Technical Specifications
- Product Type
- Outboard motor trailering support wedge
- Intended Installation
- Fits over a compatible trim/tilt piston
- Connection
- Supports the trim/tilt system during trailering; it is not a permanent mount
- Materials
- EPDM rubber and high-tech plastic
- Color
- Black
- Dimensions
- 3 in H × 5 in W × 11.25 in L (76.2 × 127 × 285.75 mm)
- Weight
- 1 lb (0.45 kg)
- Fitting Type
- Designed for compatible 3-RAM trim/tilt systems
- Material Attributes
- UV protected and saltwater resistant
What's in the Box
- 1 × M-Y Wedge Outboard Motor Support
Installation Notes
- Tilt the outboard motor to the full up position to access the trim/tilt rams.
- Clean the hydraulic trim/tilt pistons so they are free of dirt and debris.
- Slide the wedge over one compatible trim/tilt piston.
- Slowly lower the engine until it makes firm, cushioned contact with the wedge.
- Check that the motor is snug and stable on the support. Do not apply excessive hydraulic pressure.
- Always remove the support wedge before launching the boat or starting the engine.
Troubleshooting & FAQ
How do I know if this wedge fits my specific engine?
This support is designed for compatible outboard motors that use a 3-RAM trim/tilt system. Check the compatibility information and compare the wedge with your engine's trim/tilt arrangement before ordering. Do not use it on single-ram or 2-RAM systems unless the application is specifically confirmed.
Can this damage my engine's hydraulic system?
When correctly fitted and used only for trailering, the wedge supports the engine and helps limit movement caused by road shock. Do not force the engine against the wedge, apply excessive hydraulic pressure, or use the wedge on an incompatible trim/tilt system.
What is the difference between this and an OEM trailering bracket?
This is an aftermarket support wedge designed for compatible 3-RAM trim/tilt systems. It provides a cushioned support surface using an EPDM rubber and high-tech plastic construction, while an OEM trailering bracket may use a different design or be specific to a particular engine family.
Can I leave the wedge on while my boat is in the water?
No. The wedge is intended for trailering support only. Remove it before launching the boat and before operating the engine so the trim/tilt system can function normally.
My Tohatsu outboard has a trim limiter. Will this wedge still work?
It may be compatible when the outboard has the required 3-RAM arrangement. The factory trim limiter may need adjustment so the engine can tilt high enough for the wedge to seat correctly. Confirm the application before use.
How can I tell if the wedge needs to be replaced?
Inspect the wedge periodically for cracks, deep compression, excessive deformation, or material deterioration. Replace it if significant damage or deformation is present.
Is this an OEM part?
No. This listing is for an aftermarket replacement support wedge. The listed numbers are reference numbers used for product comparison and should not be interpreted as a claim that this product is manufactured by an engine OEM.
What are the shipping and return terms?
Shipping options, delivery estimates, warranty coverage, and return eligibility are determined by the applicable order and store policies. Review the current policy information at checkout or contact support before ordering if you need confirmation.
Safety & Important Information
- Verify the engine brand, model, horsepower, stroke, and 3-RAM trim/tilt configuration before purchase.
- Compare the product dimensions and physical fit with your original support arrangement.
- Use this product for trailering support only; remove it before launching or operating the engine.
- This is an aftermarket replacement component, not an OEM part.
- Professional installation is recommended when the correct application or installation procedure is uncertain.
About Sea Sierra
- Marine Replacement Parts — Practical replacement components for boating and outboard applications.
- Application-Focused Design — Products are described with fitment and installation information to help support correct selection.
- Customer Support — Contact support if you need help comparing an application before ordering.
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