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Trim Motor – Fits Yamaha F300-F350 (Replaces 6AW-43880 Series)

Sale price $99.99 Regular price $159.00
Shipping calculated at checkout.

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 Trim Motor – Fits Yamaha F300-F350 (Replaces 6AW-43880 Series) is a direct-fit replacement for Yamaha 4-Stroke outboards from 300 to 350 HP, covering model years 2008 through 2019. It is designed to work with both direct injected and fuel injected F300 and F350 models, restoring your power trim and tilt functionality.

It serves as an equivalent for Yamaha's 6AW-43880 series (including -00, -01, and -02 variations) and provides a cross-reference for several other aftermarket part numbers from brands like ARCO, DB Electrical, and API Marine.

  • Engineered for direct installation using original mounting points and electrical connections.
  • Includes a new O-ring seal to ensure a proper, leak-free fit.
  • Built with a corrosion-resistant housing to withstand harsh marine environments.

Part Number Matrix

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

Brand Part Number Superseded By Notes
Yamaha 6AW-43880-00-00 6AW-43880-01-00 OEM
Yamaha 6AW-43880-01-00 6AW-43880-02-00 OEM
Yamaha 6AW-43880-02-00 Current OEM Replacement
ARCO 6295 Aftermarket
DB Electrical 430-22130 Aftermarket
API Marine PT618NM Aftermarket
Arrowhead TRM0108 Aftermarket
REC6AW-43880-22 Aftermarket

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This trim motor is compatible with the following Yamaha 4-stroke outboard models:

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha F300TUR 300 4-Stroke 2008–2011 6AW-43880-00/01/02
Yamaha F300TXR 300 4-Stroke 2008–2011 6AW-43880-00/01/02
Yamaha LF300TUR 300 4-Stroke 2008–2010 6AW-43880-00/01/02 Left rotation variant
Yamaha LF300TXR 300 4-Stroke 2008–2010 6AW-43880-00/01/02 Left rotation variant
Yamaha F350TUR 350 4-Stroke 2008–2010 6AW-43880-00/01/02
Yamaha F350TXR 350 4-Stroke 2008–2010 6AW-43880-00/01/02
Yamaha LF350TUR 350 4-Stroke 2008–2010 6AW-43880-00/01/02 Left rotation variant
Yamaha LF350TXR 350 4-Stroke 2008–2010 6AW-43880-00/01/02 Left rotation variant
Yamaha F350UCA 350 4-Stroke 2011–2012 6AW-43880-00/01/02
Yamaha F350XCA 350 4-Stroke 2011–2012 6AW-43880-00/01/02
Yamaha LF350UCA 350 4-Stroke 2011–2012 6AW-43880-00/01/02 Left rotation variant
Yamaha LF350XCA 350 4-Stroke 2011–2012 6AW-43880-00/01/02 Left rotation variant
Yamaha F350UCB 350 4-Stroke 2013–2016 6AW-43880-00/01/02
Yamaha F350XCB 350 4-Stroke 2013–2016 6AW-43880-00/01/02
Yamaha LF350UCB 350 4-Stroke 2013–2016 6AW-43880-00/01/02 Left rotation variant
Yamaha LF350XCB 350 4-Stroke 2013–2016 6AW-43880-00/01/02 Left rotation variant
Yamaha F350UCC 350 4-Stroke 2017–2018 6AW-43880-00/01/02
Yamaha F350XCC 350 4-Stroke 2017–2018 6AW-43880-00/01/02
Yamaha LF350UCC 350 4-Stroke 2017–2018 6AW-43880-00/01/02 Left rotation variant
Yamaha LF350XCC 350 4-Stroke 2017–2018 6AW-43880-00/01/02 Left rotation variant
Yamaha F350NCB 350 4-Stroke 2015–2016 6AW-43880-00/01/02
Yamaha F350NCC 350 4-Stroke 2017–2018 6AW-43880-00/01/02

Technical Specs

Product Type
Power Trim and Tilt Motor
Installation
Direct replacement with original mounting points
Connection
12V DC electrical connections with ring terminals
Voltage
12V DC (reversing motor)
Housing Material
Varies by manufacturer (OEM uses corrosion-resistant alloy)
Housing Color
Silver/metallic
Product Dimensions
21.5 cm H x 10.1 cm W x 14.2 cm L
Weight
0.84 kg (1.84 lbs)
Fitting Type
Flange mount with (2) 7.5 mm mounting holes
Operating Temperature
-20°C to 80°C (-4°F to 176°F) [estimated]
Shaft OD
8 mm (0.315 in)
Registry OD
69.8 mm
Included Seals
O-ring seal

What’s in the Box

  • 1 x Trim Motor (Replaces 6AW-43880 Series)
  • 1 x O-Ring Seal

Installation Notes

  1. Safety First: Disconnect the battery cables at the battery before beginning work.
  2. Secure the Outboard: Raise the outboard motor to the fully tilted "up" position and engage the tilt lock lever or support it with a suitable transom saver block.
  3. Disconnect Electricals: Locate and disconnect the trim motor's electrical leads (typically green and blue wires) from the trim relay, noting their original positions.
  4. Remove Old Motor: Unbolt and carefully remove the old trim motor from the power trim and tilt unit. Be prepared for some residual hydraulic fluid to leak out.
  5. Clean Surface: Thoroughly clean the mounting surface on the PTT housing to ensure a clean, dry area for the new O-ring to seal.
  6. Install New Seal: Place the new O-ring onto the new trim motor.
  7. Mount New Motor: Mount the new motor, ensure it is seated correctly against the housing, and tighten the mounting bolts to the manufacturer's recommended torque specifications.
  8. Reconnect Electricals: Connect the new motor's electrical leads to the relay, matching the wire colors to their original positions.
  9. Reconnect Battery: Re-attach the battery cables securely.
  10. Test Operation: Test the trim and tilt function through its full range of motion. Check for smooth, quiet operation and inspect carefully for any hydraulic fluid leaks around the new motor.

Troubleshooting & FAQ

How do I know if my trim motor is failing?

Common signs of a failing trim motor include a slow or jerky trim operation, a grinding or whirring noise when operating, or the motor failing to run at all. You may also notice hydraulic fluid leaks around the motor seal. Check your battery and electrical connections first to rule out power supply issues.

Will this fit all Yamaha F300–F350 engines from 2008–2019?

This motor is designed for the specified HP range and years. However, it's crucial to verify your exact engine model against our compatibility table. Yamaha has many sub-models (e.g., F350XCA, LF350UCB), and confirming your model ensures a perfect fit. The range extends to 2019 based on aftermarket data, but always double-check your part number.

My trim operates in the reverse direction after installation. What did I do wrong?

This is a common and easily fixable issue. It means the electrical leads (usually one green, one blue) were connected in reverse to the trim relay. Simply swap these two wires at their connection points, and the motor will operate in the correct up/down direction.

What's the difference between this and the original Yamaha motor?

Our aftermarket motor is engineered to meet or exceed OEM specifications for fit and performance but at a more accessible price. The main difference may be the housing material, as some aftermarket versions use a durable hard plastic while the original is a metal alloy. Both are designed for marine use.

Can I install this myself or do I need a mechanic?

If you have basic mechanical skills and the right tools, you can typically perform the installation yourself in about an hour. However, it involves supporting a heavy outboard and working with electrical components. For safety and to ensure correct installation, we recommend professional installation by a qualified marine technician.

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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