Trim Relay Assembly – Fits Yamaha 30-90 HP Outboards (Replaces 6H1-81950-00, 6H1-81950-01)
Trim Relay Assembly – Fits Yamaha 30-90 HP Outboards (Replaces 6H1-81950-00, 6H1-81950-01) is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Trim Relay Assembly – Fits Yamaha 30-90 HP Outboards (Replaces 6H1-...
Trim Relay Assembly – Fits Yamaha 30-90 HP Outboards (Replaces 6H1-81950-00, 6H1-81950-01) is backordered and will ship as soon as it is back in stock.
Product Details
This Trim Relay Assembly – Fits Yamaha 30-90 HP Outboards (Replaces 6H1-81950-00, 6H1-81950-01) is an essential component for controlling your vessel's power trim and tilt system. It is designed for broad compatibility with Yamaha 2-stroke outboards (25–90 HP, 1992–2006 and later) and various 4-stroke models including the F30, F40, F50, and F60 series from 2001 onward.
This assembly is a direct interchange for Yamaha part numbers 6H1-81950-00-00 and 6H1-81950-01-00, as well as aftermarket references like Sierra 18-5843 and SouthMarine 6H1-81950-00.
- Installs easily as a panel-mounted unit.
- Features a reliable 3-wire configuration with screw terminals and quick connectors.
- Built with a durable plastic housing and silver alloy contacts for longevity.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Yamaha | 6H1-81950-00-00 | 6H1-81950-01-00 |
| Yamaha | 6H1-81950-01-00 | |
| SouthMarine | 6H1-81950-00 | |
| Sierra | 18-5843 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
Compatibility includes a wide range of Yamaha 2-stroke and 4-stroke models from the early 1990s through 2006 and later.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | 50TLHQ | 50 | 2-Stroke | 1992 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 70TLRQ | 70 | 2-Stroke | 1992 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 90TJRQ | 90 | 2-Stroke | 1992 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 90TLRQ | 90 | 2-Stroke | 1992 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | C85TLRQ | 85 | 2-Stroke | 1992 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | P60TLHQ | 60 | 2-Stroke | 1992 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 50TLHR | 50 | 2-Stroke | 1993 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | P50TLRR | 50 | 2-Stroke | 1993 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 40EJR(S/T/U/V/W/X) | 40 | 2-Stroke | 1994–1999 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 40ELR(S/T/U/V/W/X) | 40 | 2-Stroke | 1994–1999 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 40ESR(S/T/U/V/W/X) | 40 | 2-Stroke | 1994–1999 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 40MJH(S/T/U/V/W/X/Y) | 40 | 2-Stroke | 1994–2000 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 40MLH(S/T/U/V/W/X/Y) | 40 | 2-Stroke | 1994–2000 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 40MSH(S/T/U/V/W/X) | 40 | 2-Stroke | 1994–1999 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 40PLR(S) | 40 | 2-Stroke | 1994 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 40TLR(S/T/U/V/W/X/Y/Z/A/B/C/D) | 40 | 2-Stroke | 1994–2005 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 50EJR(T/U/V/W/X/Y/Z) | 50 | 2-Stroke | 1995–2001 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 50ELR(T/U/V) | 50 | 2-Stroke | 1995–1997 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 50TLH(S/T/U/V) | 50 | 2-Stroke | 1994–1997 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 50TLR(S/T/U/V/W/X/Y/Z/A/B/C/D) | 50 | 2-Stroke | 1994–2005 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F50TLH(T/U/V/W) | 50 | 4-Stroke | 1995–1998 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F50TLR(T/U/V/W/X/Y/Z/A/B/C) | 50 | 4-Stroke | 1995–2004 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | P50TLR(S/T/U/V/W) | 50 | 2-Stroke | 1994–1998 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | T50TLR(V/W/X/Y/Z/A/B/C) | 50 | 2-Stroke | 1997–2004 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | C40TLR(V/W/X/Y/Z/A/B) | 40 | 2-Stroke | 1997–2003 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | C50TLR(V/W/X/Y/Z/A/B) | 50 | 2-Stroke | 1997–2003 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F30TLR(Z/A/B/C/D) | 30 | 4-Stroke | 2001–2005 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F40ESR(Y/Z) | 40 | 4-Stroke | 2000–2001 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F40MLH(Y/Z) | 40 | 4-Stroke | 2000–2001 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F40MSH(Y/Z) | 40 | 4-Stroke | 2000–2001 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F40TLR(X/Y/Z/A/B/C/D) | 40 | 4-Stroke | 1999–2005 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F40EJR(B) | 40 | 4-Stroke | 2003 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F40MJH(A/B/C/D) | 40 | 4-Stroke | 2002–2005 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F40MLH(A/B/C/D) | 40 | 4-Stroke | 2002–2005 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F40MSH(A/B/C/D) | 40 | 4-Stroke | 2002–2005 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F50TJR(A/B) | 50 | 4-Stroke | 2002–2003 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F50TLR(A/B/C/D) | 50 | 4-Stroke | 2002–2005 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F60TLR(A/B/C) | 60 | 4-Stroke | 2002–2004 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | F60TJR(B/C) | 60 | 4-Stroke | 2003–2004 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | FT50TLR(B/C) | 50 | 4-Stroke | 2003–2004 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | FT60TLR(B/C) | 60 | 4-Stroke | 2003–2004 | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
| Yamaha | 40TLR | 40 | 2-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | 50TLR | 50 | 2-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | F30TLR | 30 | 4-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | 40BEJR | 40 | 2-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | F40BMJH | 40 | 4-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | 40BMLH | 40 | 2-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | F40BTLR | 40 | 4-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | F40EJR | 40 | 4-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | F40MLH | 40 | 4-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | F40MSH | 40 | 4-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | F40TLR | 40 | 4-Stroke | 2006+ | 6H1-81950-01-00 | Current part |
| Yamaha | 25Q | 25 | 2-Stroke | 6H1-81950-00-00 | Superseded by 6H1-81950-01-00 |
Technical Specs
- Product Type
- Power Trim and Tilt Relay
- Installation
- Panel Mount
- Connection
- Screw Terminals / Quick Connect
- Housing Material
- Plastic with Metal Components
- Contact Material
- Silver Alloy
- Contact Type
- Normally Open
- Product Dimensions
- 11.0cm (H) x 9.5cm (W) x 7.0cm (L)
- Box Dimensions
- 11.0cm (H) x 9.5cm (W) x 7.0cm (L)
- Voltage
- 12V DC
- Other Technical Attributes
- 3-wire relay configuration
What’s in the Box
- 1 x Trim Relay Assembly (Replaces 6H1-81950-00-00/6H1-81950-01-00)
Installation Notes
- Disconnect the boat's battery to prevent electrical shorts.
- Locate the existing trim relay. It is typically found near the engine's electrical housing.
- Carefully label or photograph the wire connections on the old relay before disconnecting them.
- Unscrew the mounting bolts and remove the old relay.
- Mount the new relay in the same position, ensuring it is secure.
- Connect the wires to the new relay according to the labels or photos from step 3.
- Reconnect the battery, then test the trim and tilt functions to confirm proper operation.
Troubleshooting & FAQ
How do I know if this relay fits my outboard?
The best way to ensure fitment is to match your engine's model and year to our compatibility table. You can also verify by comparing your old part number to the references in the Part Number Matrix, such as 6H1-81950-00-00 or 6H1-81950-01-00.
What are the signs of a failing trim relay?
Common symptoms include the trim/tilt system being completely unresponsive, working only intermittently, or operating in only one direction (up or down). You may also hear a clicking sound from the relay without any motor action.
What is the difference between part 6H1-81950-00 and 6H1-81950-01?
The 6H1-81950-01-00 part number is the newer version that supersedes 6H1-81950-00-00. They are functionally identical and fully interchangeable. Our relay replaces both versions.
Can I install this myself?
Installation is possible for those with basic electrical knowledge and tools. However, due to the critical function of the trim system, professional installation is always recommended to ensure safety and correct operation.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in 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
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
