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Yamaha Power Tilt Trim Motor – Fits Yamaha 40-90HP Outboards (Replaces 6H1-43880-00-00)

Sale price $123.45 Regular price $197.00
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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 aftermarket Yamaha Power Tilt Trim Motor – Fits Yamaha 40-90HP Outboards (Replaces 6H1-43880-00-00) is designed to restore smooth and effortless power trim functionality for a wide range of 2-stroke and 4-stroke Yamaha outboard models manufactured between 1987 and 2009.

It serves as a direct cross-reference for multiple OEM and aftermarket part numbers, including Yamaha 6H1-43880-00-00, Arco Marine 6267, and Sierra Marine 18-6781.

  • Installation: Features a standard 3-bolt mount for secure fitting.
  • Connection: Modern 2-wire system replaces the original 3-wire OEM motor, with an included harness for easy conversion.
  • Included Essentials: Comes with the necessary O-ring seal and a complete wiring harness with fuse and relays.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Yamaha 6H1-43880-00-00
Arrowhead TRM0037
Arco Marine 6267
Sierra Marine 18-6781
API PT609NM
J&N 430-22146
DB Electrical 430-22146
EMP 4-6259
WAI 10832N
Quicksilver 8M6007571

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This part is designed for various Yamaha outboard engines.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha 70ETL 70 2-Stroke 1987–1990 6H1-43880-00-00
Yamaha 70TLR 70 2-Stroke 1991 6H1-43880-00-00
Yamaha 90ETL 90 2-Stroke 1987–1990 6H1-43880-00-00
Yamaha 90ETLJD 90 2-Stroke 1987–1990 6H1-43880-00-00
Yamaha 90TJR 90 2-Stroke 1991 6H1-43880-00-00
Yamaha 90TLR 90 2-Stroke 1991 6H1-43880-00-00
Yamaha C85TLR 85 2-Stroke 1991 6H1-43880-00-00
Yamaha CV85EL 85 2-Stroke 1990 6H1-43880-00-00
Yamaha CV85ETL 85 2-Stroke 1990 6H1-43880-00-00
Yamaha P60TLH 60 2-Stroke 1991 6H1-43880-00-00
Yamaha 70TLRC 70 2-Stroke 2004 6H1-43880-02-00 Later model uses updated part number
Yamaha 70TLRNC 70 2-Stroke 2004 6H1-43880-02-00 Later model uses updated part number
Yamaha 90TLR 90 2-Stroke 2006–2009 6H1-43880-02-00 Later model uses updated part number
Yamaha 90TLRW 90 2-Stroke 1998 6H1-43880-02-00 Later model uses updated part number
Yamaha C70TLRY 70 2-Stroke 2000 6H1-43880-02-00 Later model uses updated part number
Yamaha 60TLRC 60 2-Stroke 2004 6H1-43880-02-00 Later model uses updated part number
Yamaha 70TLR 70 2-Stroke 2005–2009 6H1-43880-02-00 Later model uses updated part number
Yamaha 90TLRC 90 2-Stroke 2004 6H1-43880-02-00 Later model uses updated part number
Yamaha C60TLRY 60 2-Stroke 2000 6H1-43880-02-00 Later model uses updated part number
Yamaha 50TLRQ 50 2-Stroke 1992 6H1-43880-02-00 Later model uses updated part number

*Note: This is a partial list. This motor fits a wide range of Yamaha models from 40-90HP manufactured between 1987-2009. The original part (6H1-43880-00-00) was updated to 6H1-43880-02-00 for later model years.

Technical Specs

Product Type
Outboard Power Tilt Trim Motor
Installation
3-Bolt Mount
Fuel Type
Electric (12V DC)
Connection
2-Wire (Replaces Original 3-Wire System)
Housing Material
Metal
Housing Color
Silver/Metallic
Dimensions
Height: 33.0cm; Width: 11.5cm; Length: 33.0cm;
Fitting Type
3-Bolt Mount with O-Ring Seal
Warranty
1 Year
Other Technical Attributes
Shaft: 4mm W x 5.5mm H Tang, 70.7mm Registration OD, Includes O-Ring, Rotation: RE, 2-Wire Motor with Harness that includes 32V/30A Fuse & (2) 12V 20A/30A Relays

What’s in the Box

  • 1 x Power Tilt Trim Motor (Replaces 6H1-43880-00-00)
  • 1 x O-Ring Seal
  • 1 x Wiring Harness w/32V/30A Fuse & (2) 12V 20A/30A Relays

Installation Notes

  1. Disconnect the boat's battery before beginning work.
  2. Gain access to the power tilt and trim unit on the outboard and electrically disconnect the old motor.
  3. Carefully unbolt and remove the old motor, being mindful of any residual hydraulic fluid.
  4. Compare the new motor to the old one, verifying the shaft tang, registration OD (70.7mm), and mounting pattern.
  5. Install the new O-ring seal and securely mount the new motor.
  6. Connect the new 2-wire motor using the provided harness with relays, following the diagram for your boat's 3-wire system.
  7. Reconnect the battery and test the tilt and trim function through its full range of motion. Check for leaks.

Troubleshooting & FAQ

How does this 2-wire motor replace the original 3-wire system?

This motor includes a specially designed wiring harness that incorporates two relays. This harness correctly adapts the modern 2-wire motor to your boat's existing 3-wire helm controls, ensuring proper up/down functionality without needing to modify your boat's wiring.

What are common signs that my tilt trim motor is failing?

Symptoms include slow or labored operation, a whining or grinding noise during use, the motor running but the outboard not moving, or the motor failing to operate at all. Blown fuses or tripped relays can also indicate a motor issue.

Will this fit my specific Yamaha outboard model?

This part is designed for a broad range of Yamaha 40-90HP outboards from 1987–2009. The best way to ensure compatibility is to match your original part number to one of the equivalents listed in our Part Number Matrix and visually verify the motor's design against your old unit.

Is any special maintenance required for this motor?

To maximize lifespan, regularly inspect and clean the electrical connections to prevent corrosion. Periodically check for any hydraulic fluid leaks around the motor seals and ensure the mounting bolts remain tight.

Why is it important to verify the registration OD and shaft dimensions?

The registration outer diameter (70.7mm) and shaft tang ensure the motor seats correctly into the trim unit housing, creating a proper seal and engaging the pump drive. An incorrect fit can lead to leaks, poor performance, or mechanical damage.

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.

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