Crankshaft (Crank 2) - Fits Yamaha 9.9HP/15HP (Replaces 682-11422-00, 682-11422-09)
Crankshaft (Crank 2) - Fits Yamaha 9.9HP/15HP (Replaces 682-11422-00, 682-11422-09) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This aftermarket Crankshaft (Crank 2) is a replacement component designed for Yamaha 9.9HP and 15HP 2-stroke outboard engines, specifically confirmed for the 1985 9.9D MHS/L and 15D WHS/L models.
It serves as a direct interchange for Yamaha OEM part numbers 682-11422-00 and 682-11422-09-00.
- Installation: Installs within the engine block assembly.
- Material: Constructed from high-strength Nodular Cast Iron for durability.
- Engine Type: For use in 2-Stroke gasoline outboard motors.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 682-11422-00 |
| Yamaha | 682-11422-09-00 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha owners, please ensure your model and year match the records below, as compatibility for other years is not confirmed.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Yamaha | 9.9D MHS/L | 9.9 | 2-Stroke | 1985 | 682-11422-00, 682-11422-09 |
| Yamaha | 15D WHS/L | 15 | 2-Stroke | 1985 | 682-11422-00, 682-11422-09 |
Technical Specs
- Product Type
- Crankshaft (Crank 2)
- Installation
- Engine Block Assembly
- Fuel Type
- Gasoline
- Material
- Nodular Cast Iron
- Engine Position
- Outboard
- Engine Type
- 2-Stroke
- Dimensions
- Length: 7.5 in, Width: 8.5 in, Height: 6.0 in
- Weight
- 0.50 kg (1.10 lb)
- Other Technical Attributes
- Component of multi-piece crankshaft assembly
What’s in the Box
- 1 x Crankshaft (Crank 2) (682-11422-00)
Installation Notes
- Disconnect the battery and all fuel lines for safety.
- Remove the engine's powerhead from the midsection.
- Carefully disassemble the engine block to gain access to the crankshaft assembly.
- Remove the old crankshaft component, taking note of the position of all bearings, seals, and related parts.
- Thoroughly clean all mating surfaces and inspect adjacent components for wear.
- Install the new crankshaft component, applying appropriate lubrication to bearings and journals.
- Reassemble the engine block, ensuring all bolts are tightened to the manufacturer's specified torque sequence.
- Reinstall the powerhead, reconnect electrical and fuel systems, and confirm proper timing.
Troubleshooting & FAQ
Will this fit my Yamaha 15HP engine?
This crankshaft is confirmed to fit the 1985 Yamaha 15D WHS/L 2-stroke model. Compatibility with other years or sub-models is not guaranteed. Always verify your OEM part number is an exact match to 682-11422-00 or 682-11422-09 before ordering.
Is this a complete crankshaft assembly?
No, this is the 'Crank 2' component of a multi-piece crankshaft assembly. A complete rebuild may require additional parts which are sold separately.
What are common signs of a failing crankshaft?
Symptoms of crankshaft failure can include a loud, rhythmic knocking or rumbling sound from the engine, excessive vibration, a noticeable loss of power, or a completely seized engine that will not turn over.
Why is nodular cast iron used for this part?
Nodular cast iron offers superior strength, ductility, and fatigue resistance compared to standard gray iron. These properties make it an ideal material for high-stress, rotating components like an engine crankshaft.
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
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