Piston Ring Set (STD) – Fits Yamaha 60-70HP Outboards (Replaces 6K5-11601-02-00)
Piston Ring Set (STD) – Fits Yamaha 60-70HP Outboards (Replaces 6K5-11601-02-00) 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 Piston Ring Set (STD) is designed for standard bore Yamaha 2-Stroke 60-70 HP outboard engines, covering models from 1984 to 2013. The set is engineered for 3-cylinder engines with a 72mm (2.834") bore, ensuring a precise fit for engine rebuilds and maintenance.
It serves as a direct replacement for Yamaha part 6K5-11601-02-00 and interchanges with WSM 200-255 and Sierra 18-3963.
- Installation: Mounts as an internal engine component.
- Compatibility: Designed for OE style cast pistons. Note: not compatible with Wiseco pistons.
- Contents: Includes two steel compression rings per piston.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6K5-11601-02-00 |
| Yamaha | 6K5-11601-02 |
| WSM | 200-255 |
| Sierra | 18-3963 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This part fits a range of 3-cylinder Yamaha 2-stroke outboards. Please verify your specific model and year, particularly for engines manufactured before 1997, as records may vary.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | E60HE | 60 | 2-Stroke | 1997–2013 | 6K5-11601-02-00 | |
| Yamaha | E60HM | 60 | 2-Stroke | 1997–2013 | 6K5-11601-02-00 | |
| Yamaha | E60H | 60 | 2-Stroke | 1997–2013 | 6K5-11601-02-00 | |
| Yamaha | E60MHZ | 60 | 2-Stroke | 1997–2013 | 6K5-11601-02-00 | |
| Yamaha | E60MLHA | 60 | 2-Stroke | 1997–2013 | 6K5-11601-02-00 | |
| Yamaha | E60ELHB | 60 | 2-Stroke | 1997–2013 | 6K5-11601-02-00 | |
| Yamaha | E60HMHD | 60 | 2-Stroke | 1997–2013 | 6K5-11601-02-00 | |
| Yamaha | 3-Cyl 2.834" Bore | 60 | 2-Stroke | 1984–1996 | 6K5-11601-02-00 | Verify model compatibility |
| Yamaha | 3-Cyl 2.834" Bore | 70 | 2-Stroke | 1984–2008 | 6K5-11601-02-00 | Verify model compatibility |
Technical Specs
- Product Type
- Piston Ring Set (Standard Size)
- Installation
- Engine Internal Component
- Ring Type
- Compression Rings
- Ring Count
- 2 rings per piston
- Standard Bore Size
- 72mm (2.834")
- Material
- Steel
- Product Dimensions
- Height: 4.0; Width: 0.68; Length: 4.0;
- Application
- 3-cylinder engines
- Manufacturer
- Riken (for WSM/Sierra)
- Other Technical Attributes
- Fits OE style cast pistons; not compatible with Wiseco pistons
What’s in the Box
- 2 x Piston Rings (Replaces 6K5-11601-02-00)
Installation Notes
- Safely disconnect the battery and fuel supply before beginning work.
- Disassemble the engine block to access the cylinders and pistons according to the manufacturer's service manual.
- Carefully remove the pistons from the cylinders.
- Using a ring expansion tool, remove the old piston rings.
- Thoroughly clean the piston ring grooves to remove all carbon deposits and oil residue.
- Install the new rings onto the piston, ensuring they are in the correct groove and orientation.
- Lubricate the pistons, rings, and cylinder walls with fresh engine oil.
- Using a ring compressor, carefully reinstall the piston assemblies into the correct cylinders.
- Reassemble the engine, torquing all fasteners to the manufacturer's specifications.
- After reassembly, perform an initial break-in procedure as recommended for new rings.
Troubleshooting & FAQ
How do I know if these rings will fit my specific Yamaha model?
These rings are for standard bore (72mm) Yamaha 60-70 HP 2-stroke engines. The best way to confirm is by matching the OEM part number 6K5-11601-02-00 to your engine's service manual. For older models (pre-1997), it is critical to verify compatibility before ordering.
What are the symptoms of worn or failing piston rings?
Common signs include excessive blue or white smoke from the exhaust, a noticeable loss of engine power, increased oil consumption, and poor results from a cylinder compression test.
Is there a recommended break-in procedure after installing new rings?
Yes. A proper break-in period is crucial for seating the new rings against the cylinder walls. Generally, this involves running the engine under varying loads without sustained high RPMs for the first few hours of operation. Always refer to your engine's service manual for specific break-in guidelines.
Are these piston rings compatible with Wiseco pistons?
No, this set is specifically designed for OE style cast pistons and is not compatible with aftermarket forged pistons like those from Wiseco, which may require different ring specifications.
Do I need special tools for installation?
Yes, installing piston rings correctly requires special tools, including a piston ring expander to prevent bending or breaking the rings and a piston ring compressor to safely insert the piston back into the cylinder. We strongly recommend professional installation.
How often should piston rings be replaced?
Piston rings do not have a fixed replacement interval. They are typically replaced during a complete engine rebuild or when symptoms of wear, such as loss of compression or high oil consumption, become apparent.
Are these OEM parts or aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, it is batch-inspected for consistency.
How fast is shipping and what does it cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout where available.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If any issues arise, contact support with your order details. Returns are accepted within our standard window, provided the item is unused and in its original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against 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 quality control.
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