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Crankshaft – Fits Yamaha 115-130 HP V4 2-Stroke Outboards (Replaces 6N7-11411-00-00, 6N7-11411-01-00)

Sale price $490.00 Regular price $784.00
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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 Crankshaft fits Yamaha 115-130 HP V4 2-Stroke Outboards manufactured between 1990 and 2010. It is engineered with a large taper design for a precise fit in compatible outboard motors, ensuring reliable performance as a core component of your engine's rotating assembly.

It serves as a direct replacement for Yamaha OEM part numbers 6N7-11411-00-00 and 6N7-11411-01-00.

  • Installation: Designed for outboard engine blocks.
  • Material: Constructed from high-grade steel for durability.
  • Compatibility: Specifically for V4 2-stroke configurations.

Part Number Matrix

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

Brand Part Number
Yamaha 6N7-11411-00-00
Yamaha 6N7-11411-01-00

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha 115TLRA 115 2-Stroke 1990–2002 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 115TLRY 115 2-Stroke 1990–2002 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 115TLRU 115 2-Stroke 1990–2002 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 115TJRS 115 2-Stroke 1990–2002 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 115TJRT 115 2-Stroke 1990–2002 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 115TJRX 115 2-Stroke 1990–2002 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 115TXRA 115 2-Stroke 1990–2002 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 115TLRQ 115 2-Stroke 1990–2002 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 115ETLDA 115 2-Stroke 1990–2002 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha P115TLRT 115 2-Stroke 1990–2002 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha All 115HP Models 115 2-Stroke 1990–2010 6N7-11411-00-00/6N7-11411-01-00 90° V4, 3.544" Bore
Yamaha 130TXRZ 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 130TLRV 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 130TLRX 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha S130TLRX 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 130TLRY 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 130TLRR 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 130ETXD 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha L130TXRP 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha L130TXRT 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha 130TLRP 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha L130TXRR 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha L130ETXD 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha S130TXRW 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 V4 Configuration
Yamaha All 130HP Models 130 2-Stroke 1990–2004 6N7-11411-00-00/6N7-11411-01-00 90° V4, 3.544" Bore

Technical Specs

Product Type
Crankshaft
Installation
Outboard Engine
Fuel Type
Gasoline
Material
Grade Steel
Dimensions
48.0 cm L x 21.0 cm W x 18.0 cm H
Weight
12 kg (26.46 lb) approx.
Taper Size
Large
Warranty
Varies by retailer; aftermarket parts typically 1 year
Application
2-Stroke outboard motor models 115HP, 130HP (1990–2010)

What’s in the Box

  • 1 x Crankshaft (Replaces 6N7-11411-00-00, 6N7-11411-01-00)

Installation Notes

  1. Ensure the engine is off, cool, and disconnected from the battery and fuel supply.
  2. Remove the engine cowling, flywheel, and stator assembly to access the powerhead.
  3. Systematically detach the powerhead from the engine's midsection.
  4. Carefully split the crankcase halves to expose the internal crankshaft assembly.
  5. Remove the old crankshaft, taking note of bearing and seal positions.
  6. Clean all mating surfaces of old gasket material and debris.
  7. Lubricate and install the new crankshaft, ensuring all bearings and seals are correctly oriented and seated.
  8. Reassemble the engine components in reverse order, torquing all fasteners to the manufacturer’s specifications.
  9. After reassembly, perform a preliminary check before starting the engine in a controlled environment (e.g., a test tank).

Troubleshooting & FAQ

How do I know if this crankshaft fits my Yamaha outboard?

This crankshaft fits specific Yamaha 115HP and 130HP V4 2-stroke models from 1990–2010. Please verify your exact model and year against the compatibility table. It is designed for engines requiring a large taper crankshaft.

What are the signs of a failing crankshaft?

Common symptoms include excessive engine vibration, a deep knocking or rattling sound from the engine block, significant loss of power, or metal shavings found in the engine oil. A catastrophic failure can cause connecting rods to break.

Is this a direct replacement for the original part?

Yes, it is a direct aftermarket replacement for Yamaha OEM part numbers 6N7-11411-00-00 and 6N7-11411-01-00. No modifications are required for installation on compatible models.

What is the difference between a large taper and small taper crankshaft?

The "taper" refers to the conical end of the crankshaft where the flywheel mounts. This model has a large taper design. Using the wrong taper size will prevent the flywheel from seating correctly, leading to wobble and potential damage. It is critical to match the taper size to your engine's original specifications.

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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