Hydraulic Power Trim Hose – Fits Johnson/Evinrude Outboard & OMC Cobra/Volvo Penta SX (Replaces 3853855)

Hydraulic Power Trim Hose – Fits Johnson/Evinrude Outboard & OMC Cobra/Volvo Penta SX

This hydraulic power trim hose is designed for a range of Johnson/Evinrude outboards and OMC Cobra/Volvo Penta SX sterndrive models. It serves as the starboard up hose, connecting the manifold to the cylinder.

This part is a direct replacement for Johnson/Evinrude part number 3853855, Volvo Penta numbers 0985615, 0778124, and 0983947, as well as several aftermarket equivalents.

• Installation: Connects the manifold to the cylinder for starboard side hydraulic fluid delivery.
• Compatibility: Fits select Johnson/Evinrude outboards (65–175 HP, 1990s–2000s) and OMC Cobra/Volvo Penta SX sterndrives (1994–2005).
• Included: One power trim hose.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.

Confirm your engine model/year in the table below.

Johnson/Evinrude Outboard Models

Sterndrive Models

Technical Specifications

Package Contents

• 1 x Power Trim Hose (3853855)

Explosion Diagram

Installation Guide

1. Safety First: Before starting, ensure the engine is off, the battery is disconnected, and the boat is secured.
2. Access the Trim System: Locate the hydraulic trim and tilt unit on your engine or sterndrive.
3. Relieve Pressure: Carefully relieve any hydraulic pressure in the system according to your manufacturer's service manual.
4. Remove the Old Hose: Place a drain pan under the connections. Using appropriate wrenches, carefully disconnect the old hose from the manifold and the trim cylinder. Be prepared for some hydraulic fluid to leak out.
5. Install the New Hose: Connect the new hose to the manifold and cylinder, ensuring fittings are clean and correctly threaded. Tighten to the manufacturer's recommended torque specifications.
6. Refill and Bleed: Top off the hydraulic fluid reservoir with the recommended fluid type. Bleed the system of air by cycling the trim/tilt unit up and down several times.
7. Inspect for Leaks: With the system pressurized, carefully inspect all connections for any signs of leaks.
8. Final Check: Reconnect the battery and test the power trim operation to ensure it functions smoothly.

Troubleshooting & FAQ

How do I confirm this hose fits my engine?
Start by checking the Compatible Engine Models tables on this page. Cross-reference your engine's model, HP, and year. It is critical to also check the OEM part number stamped on your original hose and compare it to the numbers in our Part Number Cross-Reference table.

What does the "starboard up" description mean?
This hose is specifically for the hydraulic circuit that raises the starboard side of the drive or outboard. Trim systems have dedicated hoses for "up" and "down" on both port and starboard sides; using the correct hose is essential for proper function.

My OMC Cobra is from 1993, will this fit?
Based on our data, compatibility for OMC Cobra models starts from 1994. While some parts may overlap, we cannot guarantee fitment for models outside the specified 1994–1998 range. Please verify your original part number before ordering.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.