Connecting Rod Bearing Set – Fits Volvo Penta B230/B234 Engines (Replaces 270137)
Connecting Rod Bearing Set – Fits Volvo Penta B230/B234 Engines (Replaces 270137) 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).
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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 Set designed for an exact fit on Volvo Penta B230 and B234 series 4-cylinder engines. These are 0.010" (0.25mm) oversize bearings, intended for crankshafts that have been machined to the first repair size.
This set serves as a direct replacement for Volvo Penta part number 270137 and Glyco 270137-INT, ensuring reliable performance and engine rebuild quality.
- Designed for internal engine installation on connecting rods.
- Machined to a precise 0.010" (0.25mm) oversize specification.
- Restores required clearances on reground crankshafts.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 270137 |
| Glyco | 270137-INT |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This bearing set is specifically for the Volvo Penta B230 and B234 engine models listed below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | B230 | 4-Stroke | 270137 | |||
| Volvo Penta | B234 | 4-Stroke | 270137 |
Technical Specs
- Product Type
- Connecting Rod Bearing Set
- Installation
- Engine Internal
- Dimensions
- 0.010" (0.25mm) Oversize
- Box Dimensions
- 16.5cm (L) x 8.5cm (W) x 8.5cm (H)
- Fitting Type
- Engine Connecting Rod
- Other Technical Attributes
- 0.010" (0.25mm) Oversize bearings
What’s in the Box
- 1 x Connecting Rod Bearing Set (Replaces 270137)
Installation Notes
- Thoroughly clean the engine block, connecting rods, and crankshaft to remove all oil, debris, and residues.
- Before installation, use precision measuring tools (e.g., micrometers) to verify that the crankshaft connecting rod journals have been machined to the correct 0.010" (0.25mm) oversize dimension.
- Confirm connecting rod bores are clean, round, and within factory specifications.
- Apply a generous amount of high-quality engine assembly lubricant to the back of the bearing shells and the journal surfaces.
- Carefully place the bearing halves into the connecting rod and its corresponding cap, ensuring the locating tangs are seated correctly.
- Install the connecting rod and cap assembly onto the crankshaft journal, making sure of correct orientation.
- Tighten the connecting rod bolts/nuts in stages to the engine manufacturer’s recommended torque specification.
- After torquing, verify the rod has smooth rotation and proper side clearance on the journal.
- Due to the precision required, professional installation is strongly recommended.
Troubleshooting & FAQ
What does "0.010" (0.25mm) Oversize" mean?
This indicates the bearings are thicker to compensate for a crankshaft journal that has been ground down by 0.010 inches (or 0.25mm) during a rebuild. They will NOT fit a standard, un-machined crankshaft.
When are oversize bearings necessary?
Oversize bearings are used when a crankshaft's connecting rod journals are worn or scored beyond service limits. The journals are machined to a smooth, uniform undersize dimension, and oversize bearings are installed to restore the precise oil clearance required for proper engine function.
Is this a complete set for my engine?
Yes, this is a complete set of connecting rod bearings sufficient for all cylinders in the specified Volvo Penta B230 or B234 engine.
What are signs of connecting rod bearing failure?
Common symptoms include a persistent, metallic knocking or tapping sound from the engine that increases with RPM, low oil pressure, and the presence of metallic particles in the engine oil and filter.
Can I install these myself?
Installation requires specialized tools for measurement (micrometers), cleaning, and torquing, as well as a deep understanding of engine mechanics. For these reasons, we strongly recommend professional installation by a qualified marine mechanic.
How can I confirm these will fit my machined crankshaft?
Your machine shop must provide you with the final dimensions of the reground crankshaft journals. You must verify that they have been machined to exactly 0.010" (0.25mm) undersize to match these oversize bearings. Do not install if the measurements do not match.
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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