Connecting Rod Stud – Fits Parsun/Yamaha 4-Stroke 115HP Outboards (Replaces 115-08020403)
Connecting Rod Stud – Fits Parsun/Yamaha 4-Stroke 115HP Outboards (Replaces 115-08020403) 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
Product Details
This Connecting Rod Stud is a critical internal engine component designed for Parsun F115 and various compatible Yamaha 115HP 4-stroke outboard engines. It ensures the connecting rod is securely fastened, which is essential for engine reliability and performance.
This part is a direct replacement for Yamaha part number 115-08020403 and Parsun part number PAF115-08020403.
- Installation as an engine internal component.
- Engineered to original equipment manufacturer (OEM) specifications.
- Package includes one connecting rod stud.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Parsun | PAF115-08020403 |
| Yamaha | 115-08020403 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Parsun outboards, this part fits the 4-Stroke 115HP F115 series.
For Yamaha outboards, this component is compatible with various 4-Stroke 115HP F115 models.
| Brand | Model | Rated HP | Stroke | OEM Part No. |
|---|---|---|---|---|
| Parsun | F115 | 115 | 4-Stroke | PAF115-08020403 |
| Yamaha | F115 | 115 | 4-Stroke | 115-08020403 |
Technical Specs
- Product Type
- Connecting Rod Stud
- Installation
- Engine Internal Component
- Fuel Type
- Gasoline/Petrol
- Housing Material
- High-grade Steel
- Dimensions
- 2.0cm L x 5.0cm W x 22.0cm H
- Weight
- 0.17 kg (0.37 lb)
- Warranty
- 12 months (Parsun parts warranty)
- Other Technical Attributes
- Original Equipment Manufacturer (OEM) specification
What’s in the Box
- 1 x Connecting Rod Stud (PAF115-08020403/115-08020403)
Installation Notes
- Ensure the engine is turned off, cooled down, and disconnected from the power source before beginning work.
- Disassemble the engine block according to the manufacturer's service manual to access the connecting rods.
- Carefully remove the old or damaged connecting rod stud, taking note of its orientation.
- Clean the threads and surrounding surfaces of any oil, debris, or old sealant.
- Install the new stud, ensuring it is seated correctly and straight.
- Apply the correct lubricant or thread locker as specified in your service manual.
- Use a calibrated torque wrench to tighten the stud to the manufacturer-specified torque value. Do not over-tighten.
- Reassemble the engine, replacing gaskets and seals as necessary.
Troubleshooting & FAQ
How do I confirm this stud fits my exact engine model?
The best way is to cross-reference the part number. Check your engine's service manual or existing part for the number 115-08020403 (Yamaha) or PAF115-08020403 (Parsun). While it fits many F115 models, confirming the part number is essential.
What are the signs of a failing connecting rod stud?
Symptoms of a failing or stretched connecting rod stud or bolt include engine knocking sounds (rod knock), excessive vibration, loss of power, and potentially catastrophic engine failure if not addressed.
Can I reuse my old connecting rod studs or bolts?
No. Connecting rod studs and bolts are torque-to-yield components, meaning they permanently stretch when tightened. They are designed for single use and must be replaced whenever they are removed to ensure proper clamping force and prevent engine failure.
Do I need a special tool for installation?
Yes, a calibrated torque wrench is mandatory. Tightening connecting rod hardware to the precise specification in your engine's service manual is critical for safety and engine longevity. Incorrect torque can lead to immediate or premature failure.
Is this an OEM part or an 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 facility and are batch-inspected for consistency.
What are your shipping speed and cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout where available for your location.
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, please contact our support team with your order details. Returns are accepted within our standard window for unused items 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
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
