Connecting Rod Assembly – Fits Yamaha/Parsun 115HP Outboard Motors (Replaces 115-08020402, PAF115-08020402)
Connecting Rod Assembly – Fits Yamaha/Parsun 115HP Outboard Motors (Replaces 115-08020402, PAF115-08020402) 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 Connecting Rod Assembly is designed to fit Yamaha and Parsun 115HP 2-Stroke outboard motors. Engineered from high-strength forged steel, it serves as a crucial component for engine crankshaft operation, ensuring reliable performance and durability.
It directly replaces Yamaha part number 115-08020402 and Parsun part PAF115-08020402 (also known as STUD A Connecting Rod).
- Constructed from tough, forged steel for maximum durability.
- Designed as a direct-fit crankshaft component for straightforward installation.
- Meets OEM quality standards for precise engine specifications.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 115-08020402 | STUD A, Connecting Rod |
| Parsun | PAF115-08020402 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
Yamaha: This part fits 115HP 2-Stroke models.
Parsun: Compatible with 115HP 2-Stroke models based on Yamaha engine designs.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yamaha | 115HP | 115 | 2-Stroke | 115-08020402 | STUD A, Connecting Rod |
| Parsun | 115HP | 115 | 2-Stroke | PAF115-08020402 | Compatible with Yamaha-based engines |
Technical Specs
- Product Type
- Connecting Rod Assembly
- Installation
- Engine Crankshaft Component
- Fuel Type
- Gasoline
- Housing Material
- Forged Steel
- Housing Color
- Metal/Silver
- Dimensions
- 37.0 x 5.0 x 5.0
- Other Technical Attributes
- OEM quality connecting rod designed to meet exact engine specifications
What’s in the Box
- 1 x Connecting Rod Assembly (115-08020402/PAF115-08020402)
Installation Notes
- Disconnect the battery and safely drain all engine fluids (oil, coolant).
- Carefully disassemble the engine to access the crankshaft, removing the cylinder head and oil pan.
- Remove the piston and the old connecting rod assembly from the crankshaft journal.
- Thoroughly inspect the crankshaft journal for any signs of scoring or wear.
- Lubricate the new connecting rod, bearings, and wrist pin before installation.
- Install the new connecting rod assembly, ensuring correct orientation.
- Torque all bolts to the manufacturer's recommended specifications.
- Reassemble the engine using new gaskets and seals where required.
- Refill engine fluids to the proper levels before attempting to start.
Troubleshooting & FAQ
How do I know if this part fits my specific engine model?
This connecting rod assembly is designed for Yamaha and Parsun 115HP 2-Stroke outboard motors. Please consult the Engine & Model Compatibility table and cross-reference your engine's part number with the ones listed to ensure a correct match.
What are the signs of a failing connecting rod?
Common symptoms of a bad connecting rod include a persistent, rhythmic knocking or tapping sound from the engine (rod knock), low oil pressure, visible metal shavings in the engine oil, and potentially catastrophic engine failure if not addressed.
Does this assembly include bearings?
The package contains one connecting rod assembly as pictured. Bearings and other related components are typically sold separately unless specified in the "What's in the Box" section. Always verify if your project requires new bearings.
How does this aftermarket rod compare to the OEM version?
This part is manufactured to meet or exceed OEM specifications using high-quality forged steel for equivalent strength and durability. It provides a reliable, cost-effective alternative to the original manufacturer's part.
What is the recommended maintenance or replacement interval?
Connecting rods are not typically considered a routine maintenance item. They are replaced during an engine rebuild or when they fail. Lifespan depends on engine hours, load, lubrication, and operating conditions.
Can I install this myself?
Installation is a complex task that requires engine disassembly and specialized tools, including a torque wrench. Professional installation by a qualified marine mechanic is strongly recommended to ensure proper fitment, safety, and engine longevity.
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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