3853825 Hydraulic Trim Hose for Volvo Penta SX-M SX-C SX-S | JLM Marine

Hydraulic Trim Hose for Volvo Penta SX-M, SX-C, SX-S – 3853825 Replacement

This hydraulic trim hose is designed to fit Volvo Penta SX-M, SX-C, and SX-S sterndrive models manufactured between 1987 and 1993. It is also compatible with all OMC COBRA sterndrive models from the same era, covering a wide range of engines including Ford 2.3L 4-cylinder, GM 3.0L 140hp 4-cylinder, 4.3L V6, 5.0L V8 305, 5.7L 350, 5.0L 302, and 5.8L 351 configurations. Note that 1986 models used a different hose with different end angles and are not compatible with this part.

This hose directly replaces OEM part number 3853825 (also known as 38538252) and aftermarket equivalents including 0984645, 984645, 0911937, and 911937. The stainless braided and rubber coated versions are interchangeable, providing flexibility in your replacement options.

• High-quality hydraulic trim hose with stainless braided or rubber coated construction
• Direct replacement for Volvo Penta and OMC COBRA sterndrive systems
• Fits multiple engine configurations from 4-cylinder to V8

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.

Technical Specifications

Package Contents

• 1× Hydraulic Trim Hose

Note: The package contains all the parts shown in the picture.

Installation Guide

1. Preparation: Disconnect the battery and ensure the sterndrive is in the fully down position. Relieve any hydraulic pressure in the trim system before proceeding.
2. Access: Locate the existing hydraulic trim hose connections on your sterndrive unit. You may need to remove engine covers or access panels depending on your boat configuration.
3. Drain Fluid: Place a drain pan beneath the connections to catch hydraulic fluid. Carefully disconnect the old hose from both the pump and trim cylinder fittings.
4. Remove Old Hose: Unscrew the fittings and remove the old hydraulic trim hose. Inspect the connection points for any debris or damage.
5. Clean Connections: Wipe down all fitting threads and sealing surfaces with a clean rag to ensure a proper seal.
6. Install New Hose: Route the new hydraulic trim hose along the same path as the original. Ensure it is not kinked, twisted, or in contact with sharp edges.
7. Connect Fittings: Thread the hose fittings into the pump and trim cylinder connections hand-tight first, then tighten with a wrench. Do not over-torque.
8. Refill Fluid: Fill the hydraulic trim reservoir with the appropriate hydraulic fluid per your engine manufacturer's specifications.
9. Bleed System: Operate the trim system several times to purge air from the lines. Check fluid level and top off as needed.
10. Inspect for Leaks: Run the trim system through its full range while monitoring all connections for leaks. Tighten fittings if necessary.
11. Test Operation: Verify smooth trim operation in both up and down directions. Recheck all connections after the initial test.
12. Final Check: Reconnect the battery and perform a final inspection of the installation before returning the boat to service.

Troubleshooting & FAQ

Q: How do I confirm this hose fits my engine?
A: Check the compatibility table above for your sterndrive model and year. This hose fits Volvo Penta SX-M, SX-C, and SX-S models from 1987-1993, as well as all OMC COBRA sterndrives from the same period. Note that 1986 models used a different hose with different end angles and are not compatible.

Q: What's the difference between stainless braided and rubber coated versions?
A: Both versions are functionally interchangeable and will work with your system. Stainless braided hoses offer slightly more abrasion resistance, while rubber coated versions provide additional protection against corrosion. Choose based on your preference and installation environment.

Q: What are the signs that my hydraulic trim hose needs replacement?
A: Common failure signs include visible fluid leaks around the hose or fittings, slow or erratic trim operation, low hydraulic fluid levels, visible cracks or fraying in the hose covering, or loss of trim holding power. Replace the hose immediately if any of these symptoms occur.

Q: How often should I replace the hydraulic trim hose?
A: Replace the hose whenever you notice signs of wear, damage, or leakage. Inspect the hose annually as part of your regular maintenance routine, checking for cracks, abrasion, or fluid seepage. In harsh marine environments, more frequent inspection is recommended.

Q: Can I use any type of hydraulic fluid in the trim system?
A: Always use the hydraulic fluid type specified by your engine manufacturer. Using incorrect fluid can damage seals and compromise system performance. Consult your owner's manual for the correct specification.

Q: Is this an OEM part or aftermarket?
A: 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.

Q: How fast do you ship and how much does it cost?
A: 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.

Q: What is your warranty and return policy?
A: 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.