Cylindrical Connecting Rod Bearing – Fits Yamaha 25HP, 30HP 2-Stroke Outboards (Replaces 93310-624U5-00)
Cylindrical Connecting Rod Bearing – Fits Yamaha 25HP, 30HP 2-Stroke Outboards (Replaces 93310-624U5-00) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
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
Cylindrical Connecting Rod Bearing – Fits Yamaha 25HP, 30HP 2-Strok...
Product Details
This is a precision Cylindrical Connecting Rod Bearing for Yamaha 25HP and 30HP 2-Stroke outboards, designed for engine models from the mid-1980s through the early 2000s. It serves as a critical internal component, ensuring smooth operation between the crankshaft and connecting rod.
It is a direct interchange for Yamaha part numbers 93310-624U5-00, 93310-624U5, and 933106240600.
- Installation: Mounts internally on the connecting rod.
- Connection: Secured via a precision press fit.
- Material: Constructed from durable steel for longevity.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number |
|---|---|
| Yamaha | 93310-624U5-00 |
| Yamaha | 93310-624U5 |
| Yamaha | 933106240600 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yamaha | 25B, 25C, 25D | 25 | 2-Stroke | 93310-624U5-00 | |
| Yamaha | 25N | 25 | 2-Stroke | 93310-624U5-00 | |
| Yamaha | 30D, 30H | 30 | 2-Stroke | 93310-624U5-00 | |
| Yamaha | E25 | 25 | 2-Stroke | 93310-624U5-00 | |
| Yamaha | C30, CV30 | 30 | 2-Stroke | 93310-624U5-00 |
Technical Specs
- Product Type
- Cylindrical Needle Bearing
- Installation Location
- Internal - Connecting Rod
- Connection
- Press Fit
- Housing Material
- Steel
- Housing Color
- Silver/Metallic
- Dimensions
- 24mm (inner) × 32mm (outer) × 20mm (height)
- Weight
- 400g (0.88 lb)
- Fitting Type
- Precision Press Fit
- Other Technical Attributes
- Crankshaft Connecting Rod Bearing (#10)
What’s in the Box
- 1 x Bearing, Cylindrical #10 (93310-624U5-00)
Installation Notes
- Disassemble the engine block to gain access to the crankshaft and connecting rods per the official service manual.
- Carefully press out the old bearing from the connecting rod using a hydraulic press and the correct size adapters.
- Thoroughly clean the connecting rod bore and inspect it for scoring, cracks, or warping.
- Generously lubricate the new bearing and the bore with fresh 2-stroke engine oil before installation.
- Align the new bearing and press it into the connecting rod until it is perfectly square and fully seated.
- Confirm bearing alignment and smooth rotation before reassembling the engine.
Troubleshooting & FAQ
How can I confirm this bearing fits my specific engine?
The most reliable way is to verify your engine's original part number. Check your service manual or the existing bearing for the number 93310-624U5-00 or one of its interchanges. Also, compare your engine's model and year against the compatibility chart.
What are common signs of a failed connecting rod bearing?
Symptoms of a worn or failing rod bearing include a distinct knocking or rattling sound from the engine (rod knock), increased vibration, loss of power, and potentially metal shavings found in the engine oil upon inspection.
Is any special tooling required for installation?
Yes, installation requires specialized tools, including a hydraulic press with appropriate arbors or bearing drivers to safely remove the old bearing and install the new one without causing damage to the connecting rod or the bearing itself.
What is the recommended replacement interval for this bearing?
Connecting rod bearings do not have a fixed replacement interval. They are typically replaced during a complete engine rebuild or when symptoms of failure, such as rod knock, become apparent. Their lifespan depends heavily on engine operating conditions, maintenance, and proper lubrication.
Is this an OEM or aftermarket part?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Our parts are manufactured in an ISO 9002 certified facility and are batch-inspected for quality and consistency.
How fast is shipping and what does it cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free to most locations, with expedited options available at checkout where applicable.
What is the warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team 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 component, not an OEM part.
- 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.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
