Main Bearing Kit – Fits Volvo Penta AD41/KAD42/TAMD41/TAMD42/KAD43 Series (Replaces 876515, 1544120, 1545231, 1542304)
Main Bearing Kit – Fits Volvo Penta AD41/KAD42/TAMD41/TAMD42/KAD43 Series (Replaces 876515, 1544120, 1545231, 1542304) 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
Main Bearing Kit – Fits Volvo Penta AD41/KAD42/TAMD41/TAMD42/KAD43 ...
Product Details
This is a complete Main Bearing Kit designed for a range of Volvo Penta diesel engines, specifically the 41, 42, and 43 series. It ensures proper crankshaft fitment and engine performance for models including AD41L-A, KAD42B, TAMD41H-A, and KAD43P-A.
This kit serves as a direct replacement for Volvo Penta part numbers 876515, 1544120, 1545231, and 1542304, providing a reliable interchange for maintenance and engine rebuilds.
- Installs directly onto the engine crankshaft.
- Designed for use in diesel engine applications.
- Contains a full set of bearings required for one engine.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Volvo Penta | 876515 | Primary Replacement |
| Volvo Penta | 1544120 | Interchange |
| Volvo Penta | 1545231 | Interchange |
| Volvo Penta | 1542304 | Interchange |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Volvo Penta | AD41L-A | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | AD41P-A | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | D41L-A | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | KAD42B | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | KAMD42B | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | TAMD42B | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | TAMD41H-A | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | TAMD41H-B | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | TAMD41P-A | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | TAMD41L-A | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | KAMD43P | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | KAMD43P-A | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | KAMD43P-B | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | KAD43P | 4-Stroke | 876515 | Diesel engine |
| Volvo Penta | KAD43P-A | 4-Stroke | 876515 | Diesel engine |
Technical Specs
- Product Type
- Main Bearing Kit
- Installation
- Engine Crankshaft
- Fuel Type
- Diesel
- Dimensions
- 9.0" L x 9.0" W x 4.0" H
- Fitting Type
- Engine Crankshaft Bearings
- Warranty
- Manufacturer Standard Warranty
What’s in the Box
- 1 x Main Bearing Kit (Replaces 876515)
Installation Notes
- Ensure the engine is off, cool, and disconnected from the battery.
- Drain the engine oil and remove the oil pan to access the crankshaft.
- Carefully remove the main bearing caps one at a time, noting their orientation and position.
- Remove the old bearing halves from the block and caps.
- Thoroughly clean crankshaft journals and bearing saddles with a lint-free cloth. Do not use abrasives.
- Apply a generous amount of high-quality assembly lube to the new bearing shells.
- Place the new bearing shells into the block and caps, ensuring they are seated correctly.
- Reinstall the bearing caps in their original positions and torque the bolts to the manufacturer's specified sequence and values.
- Check crankshaft for free rotation after torquing each cap.
- Reinstall the oil pan with a new gasket and refill the engine with fresh oil.
Troubleshooting & FAQ
How do I know this kit is correct for my engine?
This kit fits many Volvo Penta 41, 42, and 43 series engines. The most reliable method is to cross-reference your existing part number with the numbers listed: 876515, 1544120, 1545231, or 1542304. You can also confirm your engine model is in the compatibility table.
What are the symptoms of failing main bearings?
Common signs include a deep knocking or rumbling sound from the lower part of the engine, low oil pressure readings (especially when warm), and the presence of metallic shavings in the engine oil and filter.
Is assembly lubricant necessary for installation?
Absolutely. High-quality assembly lubricant must be applied to all bearing surfaces and crankshaft journals before installation. This prevents metal-to-metal contact and scoring during the initial engine startup.
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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