Oil Line – Fits OMC Marine/Sterndrive (Replaces 3853854)
Oil Line – Fits OMC Marine/Sterndrive (Replaces 3853854) 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
Oil Line – Fits OMC Marine/Sterndrive (Replaces 3853854)
Product Details
This is a direct replacement Oil Line – Fits OMC Marine/Sterndrive (Replaces 3853854), specifically designed for certain 1998 OMC 5.7L engine models. It functions as the starboard-down hydraulic line for the power trim system.
This part offers a direct interchange for OEM numbers EVINRUDE-JOHNSON 3853854 and VOLVO PENTA 3853854, as well as aftermarket references like Sierra 18-2132 and 9-71602.
- Installation Location: Power Trim (Starboard, Down)
- Product Type: Hose Fitting
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| EVINRUDE-JOHNSON | 3853854 |
| VOLVO PENTA | 3853854 |
| Sierra | 18-2132 |
| Aftermarket | 9-71602 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
Compatibility guide for OMC Marine/Sterndrive models:
| Brand | Model | Years | OEM Part No. | Notes |
|---|---|---|---|---|
| OMC | 5.7 (57FCPBYC) | 1998 | 3853854 | For Power Trim & Tilt -- 3868413 Model Transom Mount |
Technical Specs
- Product Type
- Oil Line Assembly
- Installation
- Power Trim (Starboard Down)
- Fitting Type
- Hose
- Dimensions
- 1" x 1" x 62.5"
- Other Technical Attributes
- Starboard, Down
What’s in the Box
- 1x Oil Line Assembly
Installation Notes
- Ensure the engine is off, cool, and trimmed to a position that provides access. Place an oil pan or absorbent pads under the work area to catch fluid.
- Identify and access the old starboard-down power trim oil line. Clean the area around the fittings to prevent contamination.
- Using a flare nut wrench to prevent rounding, carefully loosen and disconnect both ends of the old oil line. Be prepared for residual fluid to drain.
- Compare the new line with the old one to ensure an exact match.
- Route the new oil line following the same path as the original. Hand-tighten the fittings, then snug them securely with a wrench, but do not overtighten.
- Once installed, check the power trim fluid reservoir and top it off to the recommended level.
- Cycle the power trim up and down several times to bleed air from the system. Re-check the fluid level and inspect all connections for leaks.
Troubleshooting & FAQ
How do I know if this oil line fits my specific 5.7L engine?
This line is specifically for the 1998 OMC 5.7L (model 57FCPBYC), used in a 3868413 transom mount assembly. The most reliable way to confirm fitment is to verify your original part number is 3853854 or one of its direct interchanges.
What is the difference between the starboard-down and port-up lines?
This is the "down" hydraulic line for the starboard (right) side of the power trim unit. Hydraulic lines are specific to their position and function ("up" or "down") and are not interchangeable. You must use the correct line for the specific connection port to ensure proper operation.
What are signs my old oil line has failed?
Common signs of a failing oil line include visible hydraulic fluid leaks around the line or its fittings, a spongy or unresponsive power trim system, or a trim system that fails to hold its position and "bleeds down" over time.
Is any special tool required for installation?
While standard wrenches may work, a flare nut wrench is highly recommended to safely loosen and tighten the fittings without rounding them off. Always refer to your engine's official service manual for specific tool recommendations and procedures.
Fitment is confirmed, but my trim is still not working correctly after installation. What should I do?
If the new line is installed correctly and there are no leaks, the issue may be with other components. Ensure the system has been properly bled of all air, check the power trim fluid level again, and inspect the pump, motor, and other hydraulic lines for issues.
Can I use a generic hydraulic hose instead?
It is strongly advised to use a purpose-built replacement line like this one. Marine power trim systems operate under specific pressures, and the fittings are precisely matched. Using a generic hose risks leaks, bursting, and system failure.
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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