Big-End Bearing Kit – Fits Volvo Penta Marine Engines (Replaces 875491, 803353)
Big-End Bearing Kit – Fits Volvo Penta Marine Engines (Replaces 875491, 803353) 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.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This is a replacement Big-End Bearing Kit designed to fit Volvo Penta MD11C and other compatible diesel marine engines. It serves as a critical component for connecting rod installations during engine rebuilds or maintenance, ensuring smooth operation and longevity.
It is a direct replacement for Volvo Penta part numbers 875491 and 803353.
- Installation Location: Engine Internals - Connecting Rod
- Fuel Compatibility: Diesel
- Bearing Size: Std D (standard dimension)
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Volvo Penta | 875491 | Current part number |
| Volvo Penta | 803353 | Superseded by 875491 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | OEM Part No. | Notes |
|---|---|---|---|
| Volvo Penta | MD11C | 875491 | Supersedes 803353 |
Technical Specs
- Product Type
- Big-End Bearing Kit (Connecting Rod Bearing Kit)
- Installation
- Engine Internals - Connecting Rod
- Fuel Type
- Diesel
- Dimensions
- 4.0" L x 7.5" W x 3.4" H
- Other Technical Attributes
- Std D size (standard dimension)
What’s in the Box
- 1 x Big-End Bearing Kit (Replaces 875491)
Installation Notes
- Ensure the engine is turned off, cooled down, and disconnected from the power source.
- Drain the engine oil completely.
- Access the connecting rods as per your engine's service manual. This typically requires removing the oil pan and other components.
- Carefully remove the old connecting rod bearing caps and bearings, noting their orientation.
- Clean the connecting rod and cap surfaces thoroughly to remove any old oil or debris.
- Lubricate the new bearings with fresh engine assembly lube.
- Install the new bearings into the connecting rod and cap.
- Reinstall the bearing cap and torque the bolts to the manufacturer's specified value. Do not over-tighten.
- Verify the connecting rod moves freely on the crankshaft journal.
- Reassemble the remaining engine components, refill with new oil, and check for leaks before starting.
Troubleshooting & FAQ
How do I confirm this bearing kit will fit my engine?
This kit is confirmed to fit the Volvo Penta MD11C model. The most reliable way to ensure fitment is to match your existing part number to 875491 or its superseded number, 803353. Always compare the specifications and images to your old part before ordering.
What are the signs of a failing big-end bearing?
Common symptoms include a persistent, rhythmic knocking or ticking sound from the lower part of the engine that increases with RPM, low oil pressure, and the presence of metallic particles in the engine oil during a change.
What does "Std D size" mean?
"Std D" refers to the standard dimension sizing for the bearing. It is intended for a crankshaft that has not been machined or ground down. If your crankshaft has been serviced, you may require an oversized bearing, and you should consult your service manual or a professional mechanic.
What is the recommended replacement interval for connecting rod bearings?
There is no fixed interval; bearings are typically replaced during a major engine rebuild or overhaul, or when signs of wear or failure appear. Their lifespan depends heavily on regular oil changes, proper lubrication, and operating conditions.
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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