Bearing Rod Caged – Fits Johnson Evinrude 45–75 HP (Replaces 388344, 437088, Sierra 18-1378)
Bearing Rod Caged – Fits Johnson Evinrude 45–75 HP (Replaces 388344, 437088, Sierra 18-1378) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Bearing Rod Caged – Fits Johnson Evinrude 45–75 HP (Replaces 388344...
Product Details
This aftermarket Bearing Rod Caged – Fits Johnson Evinrude 45–75 HP is engineered for a broad range of Johnson, Evinrude, OMC, and BRP outboard engines, primarily covering models from 20 to 75 HP manufactured between 1960 and 1997. It serves as a reliable replacement for worn or damaged connecting rod bearings, built to meet or exceed original equipment specifications for dependable performance.
It directly replaces OEM part numbers 388344 and 437088, and it is an interchange for Sierra 18-1378. Confirm your specific part number and engine model before ordering to ensure correct fitment.
- Engineered as a direct OEM-spec aftermarket replacement.
- Constructed from durable metal alloy for longevity.
- Package includes one complete caged connecting rod bearing.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number | Notes |
|---|---|---|
| Johnson Evinrude (OEM) | 388344 | Direct OEM reference. |
| Johnson Evinrude (OEM) | 437088 | Superseded OEM reference. |
| Sierra | 18-1378 | Aftermarket equivalent. |
| ProPart | 388344 | Aftermarket equivalent. |
Engine & Model Compatibility
Confirm your engine model and year in the table below. This part is known to fit the following models.
For Johnson/Evinrude Owners: This table lists specific compatible models. While fitment extends from 20-75 HP for years 1960-1997, always verify your exact model and OEM part number.
| Brand | Model | Rated HP | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| EVINRUDE | E20CRCOS | 20 | 1985 | 388344 | Compatible |
| EVINRUDE | E20CRLCOS | 20 | 1985 | 388344 | Compatible |
| EVINRUDE | E20ECOS | 20 | 1985 | 388344 | Compatible |
| EVINRUDE | E20ELCOS | 20 | 1985 | 388344 | Compatible |
| EVINRUDE | E25ECOC | 25 | 1985 | 388344 | Compatible |
| EVINRUDE | E25ELCOC | 25 | 1985 | 388344 | Compatible |
| EVINRUDE | E25RCOS | 25 | 1985 | 388344 | Compatible |
| EVINRUDE | E25RLCOS | 25 | 1985 | 388344 | Compatible |
| EVINRUDE | E25RWCOS | 25 | 1985 | 388344 | Compatible |
| EVINRUDE | E25RWLCOS | 25 | 1985 | 388344 | Compatible |
| EVINRUDE | E25TECOS | 25 | 1985 | 388344 | Compatible |
| EVINRUDE | E25TELCOS | 25 | 1985 | 388344 | Compatible |
| EVINRUDE | E30ECOA | 30 | 1985 | 388344 | Compatible |
| EVINRUDE | E30ELCOA | 30 | 1985 | 388344 | Compatible |
| EVINRUDE | E30RCOA | 30 | 1985 | 388344 | Compatible |
| EVINRUDE | E30RLCOA | 30 | 1985 | 388344 | Compatible |
| EVINRUDE | E30TECOA | 30 | 1985 | 388344 | Compatible |
| EVINRUDE | E30TELCOA | 30 | 1985 | 388344 | Compatible |
| EVINRUDE | E40ECOB | 40 | 1985 | 388344 | Compatible |
| EVINRUDE | E40ECRM | 40 | 1984 | 388344 | Compatible |
| EVINRUDE | E40ELCOB | 40 | 1985 | 388344 | Compatible |
| EVINRUDE | E40ELCRM | 40 | 1984 | 388344 | Compatible |
| EVINRUDE | E40RCOB | 40 | 1985 | 388344 | Compatible |
| EVINRUDE | E40RCRM | 40 | 1984 | 388344 | Compatible |
| EVINRUDE | E40RLCOB | 40 | 1985 | 388344 | Compatible |
| EVINRUDE | E40RLCRM | 40 | 1984 | 388344 | Compatible |
| EVINRUDE | E40RWCOM | 40 | 1985 | 388344 | Compatible |
| EVINRUDE | E40RWLCOM | 40 | 1985 | 388344 | Compatible |
| EVINRUDE | E40TECRM | 40 | 1984 | 388344 | Compatible |
| EVINRUDE | E40TELCRM | 40 | 1984 | 388344 | Compatible |
| EVINRUDE | E50BECRM | 50 | 1984 | 388344 | Compatible |
| EVINRUDE | E50BELCRM | 50 | 1984 | 388344 | Compatible |
| EVINRUDE | E50TELCRM | 50 | 1984 | 388344 | Compatible |
| EVINRUDE | E50TLCRM | 50 | 1984 | 388344 | Compatible |
| EVINRUDE | E55RSLN | 55 | 1983 | 388344 | Compatible |
| EVINRUDE | E60ELCRE | 60 | 1984 | 388344 | Compatible |
| EVINRUDE | E60TLCRE | 60 | 1984 | 388344 | Compatible |
| JOHNSON EVINRUDE | Many Models | 20–75 | 1960–1997 | 0388344, 437088 | Aftermarket fit |
Technical Specs
- Product Type
- Connecting Rod Bearing (Caged)
- Housing Material
- Metal Alloy
- Dimensions
- 7.13 x 6.0 x 1.0 inches (181.1 x 152.4 x 25.4 mm)
- Weight
- 2.36 ounces (0.067 kg)
- Other Attributes
- OEM Spec Aftermarket Replacement
- Warranty
- Amazon.com Voluntary 30-Day Return Guarantee
What’s in the Box
- 1 x Connecting Rod Bearing (388344/437088/18-1378)
Installation Notes
- Disconnect the battery and ignition system to prevent accidental starting.
- Drain the engine oil and coolant completely.
- Disassemble the engine components as required by your service manual to access the connecting rods.
- Carefully remove the connecting rod cap and the old bearing halves.
- Thoroughly clean the connecting rod and crankshaft journal surfaces of any oil or debris.
- Apply a liberal coat of assembly lube to the new bearing halves and the crankshaft journal.
- Place the new bearing halves into the rod and cap.
- Reinstall the connecting rod cap and tighten the bolts to the manufacturer's specified torque.
- Reassemble the rest of the engine in reverse order of disassembly.
- Refill the engine with fresh oil and coolant before starting.
Note: This is a general guide. Always consult your engine's official service manual for detailed instructions and torque specifications. Professional installation is highly recommended.
Troubleshooting & FAQ
How do I confirm this bearing fits my exact engine model?
The best way is to cross-reference your existing part number with those listed in our Part Number Matrix (388344, 437088, 18-1378). Also, check your model and year against our Engine & Model Compatibility table. If you're unsure, consult your service manual or a professional mechanic.
What are the signs of a failing connecting rod bearing?
Common symptoms include a persistent knocking or tapping sound from the engine that increases with RPM, low oil pressure, and the presence of metallic shavings or glitter in the engine oil during an oil change. Immediate inspection is recommended if you notice these signs.
Is this bearing for 2-stroke or 4-stroke engines?
This bearing fits a wide range of Johnson and Evinrude models, most of which from the specified era (1960–1997) are 2-stroke. However, as stroke data was not provided for all compatible models, we advise you to verify the requirements for your specific engine.
Why is it called a "caged" bearing?
A "caged" or "retainer-type" bearing uses a metal cage to hold the needle rollers in place, keeping them evenly spaced. This design helps reduce friction and wear, providing stability and durability, especially in high-RPM engine applications.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, it is batch-inspected for consistency and quality.
Shipping speed & cost
We ship worldwide quickly—typical transit is 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 if the part is unused and in its original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against 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 quality control.
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