Connecting Rod Bearing Kit (0.30mm/.012") – Fits Volvo Penta MD22/TMD22/TAMD22 Series (Replaces 859949)
Connecting Rod Bearing Kit (0.30mm/.012") – Fits Volvo Penta MD22/TMD22/TAMD22 Series (Replaces 859949) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This is a Connecting Rod Bearing Kit (0.30mm/.012") designed for Volvo Penta MD22, TMD22, and TAMD22 series diesel engines, which were commonly produced from the 1990s through the early 2000s. This oversized bearing kit is essential for engine rebuilds where the crankshaft has been machined.
This kit serves as a direct replacement for Volvo Penta part number 859949.
- Designed for use in diesel engines.
- Installed as an internal engine component.
- Features 0.30mm/.012" oversize bearings for connecting rods.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 859949 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This component is designed for specific Volvo Penta diesel engines. Check your model carefully.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Volvo Penta | MD22A | 4-Stroke | 859949 | Diesel |
| Volvo Penta | MD22L-A | 4-Stroke | 859949 | Diesel |
| Volvo Penta | MD22L-B | 4-Stroke | 859949 | Diesel |
| Volvo Penta | MD22P-B | 4-Stroke | 859949 | Diesel |
| Volvo Penta | TMD22A | 4-Stroke | 859949 | Diesel |
| Volvo Penta | TMD22B | 4-Stroke | 859949 | Diesel |
| Volvo Penta | TMD22P-C | 4-Stroke | 859949 | Diesel |
| Volvo Penta | TAMD22P-B | 4-Stroke | 859949 | Diesel |
Technical Specs
- Product Type
- Connecting Rod Bearing Kit (Big End Bearing Kit), 0.30mm/.012" oversize
- Installation
- Engine internal component
- Fuel Type
- Diesel
- Dimensions
- 160 × 75 × 30 mm (16.0 × 7.5 × 3.0 cm)
- Weight
- 0.22 kg (0.49 lb)
- Other Technical Attributes
- 0.30mm/.012" oversize bearings for connecting rod
What’s in the Box
- 1 x Connecting Rod Bearing Set (0.30mm/.012" oversize)
Installation Notes
- Ensure the engine is off, cool, and disconnected from the power source. Drain the engine oil completely.
- Remove the oil pan to access the bottom end of the engine.
- Identify the connecting rod cap for the cylinder you are servicing.
- Carefully unbolt and remove the connecting rod cap, noting its orientation.
- Remove the old bearing shells from both the rod and the cap.
- Thoroughly clean the bearing saddles in the rod and cap, ensuring they are free of oil and debris.
- Apply a generous amount of assembly lube to the new oversized bearing shells.
- Install the new bearings into the rod and cap, ensuring the locating tangs are correctly seated.
- Use plastigauge to verify the oil clearance between the bearing and the crankshaft journal is within the engine manufacturer’s specifications.
- Reinstall the connecting rod cap in its original orientation and torque the bolts to the specified value in the correct sequence.
- After installation, manually rotate the crankshaft to ensure there is no binding.
- Reinstall the oil pan with a new gasket and refill the engine with the correct grade of oil.
Troubleshooting & FAQ
How do I know if I need oversized bearings?
Oversized bearings like this 0.30mm set are required when the crankshaft journal has been machined down during an engine rebuild. This is determined by a machinist measuring the journal diameter. Using oversized bearings on a standard-size crankshaft will cause the engine to seize.
What are the symptoms of a failing connecting rod bearing?
The most common sign is a distinct, rhythmic knocking or tapping sound from the engine that increases with RPM, often called "rod knock." Other symptoms include low oil pressure readings and finding metallic particles (bearing material) in the engine oil during an oil change.
Is this kit for a single cylinder or the full engine?
This product is sold as a kit, which typically services a single connecting rod. Please confirm the quantity you need for your specific engine, as multi-cylinder engines will require multiple kits for a complete overhaul.
Do I need special tools for this job?
Yes. Installing internal engine components is a precision task. You will need a calibrated torque wrench, plastigauge for measuring oil clearance, and feeler gauges at a minimum. Professional-grade tools and experience are highly recommended.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It has been built to OEM-level specifications with comparable materials. Our parts are manufactured in an ISO 9002 facility and are batch-inspected for consistency and quality.
Shipping speed & cost
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free to most locations; expedited options appear at checkout where available based on your address.
Warranty & returns
This product is covered by a 1-year warranty against manufacturing defects under normal use. If any issues arise, 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. Please see our full 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.
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