Hydraulic Trim Hose – Fits Volvo Penta SX-M SX-C SX-S & OMC Cobra (Replaces 3853825, 0984645, 0911937)
Hydraulic Trim Hose – Fits Volvo Penta SX-M SX-C SX-S & OMC Cobra (Replaces 3853825, 0984645, 0911937) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
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Hydraulic Trim Hose – Fits Volvo Penta SX-M SX-C SX-S & OMC Cob...
Hydraulic Trim Hose – Fits Volvo Penta SX-M SX-C SX-S & OMC Cobra (Replaces 3853825, 0984645, 0911937) is backordered and will ship as soon as it is back in stock.
Product Details
This Hydraulic Trim Hose is designed to fit Volvo Penta SX-M, SX-C, and SX-S sterndrive models from 1987–1993, as well as all OMC Cobra sterndrive models used during the same period. Compatible with 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. Note that 1986 models used a different hose with different end angles.
This aftermarket replacement directly substitutes Volvo Penta part number 3853825 and OMC part numbers 0984645, 984645, 0911937, and 911937.
- Features stainless braided and rubber coated construction for durability
- Interchangeable with both braided and coated line variations
- Direct bolt-on installation on compatible sterndrive models
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Volvo Penta | 3853825 | Primary OEM reference |
| Volvo Penta | 38538252 | |
| OMC | 0984645 | |
| OMC | 984645 | |
| OMC | 0911937 | |
| OMC | 911937 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Years | Notes |
|---|---|---|---|
| Volvo Penta | SX-M | 1987–1993 | |
| Volvo Penta | SX-C | 1987–1993 | |
| Volvo Penta | SX-S | 1987–1993 | |
| OMC | Cobra (Ford 2.3L 4cyl) | 1987–1993 | All Cobra sterndrive models |
| OMC | Cobra (GM 3.0L 140hp 4cyl) | 1987–1993 | All Cobra sterndrive models |
| OMC | Cobra (4.3L V6) | 1987–1993 | All Cobra sterndrive models |
| OMC | Cobra (5.0L V8 305) | 1987–1993 | All Cobra sterndrive models |
| OMC | Cobra (5.7L 350) | 1987–1993 | All Cobra sterndrive models |
| OMC | Cobra (5.0L 302) | 1987–1993 | All Cobra sterndrive models |
| OMC | Cobra (5.8L 351) | 1987–1993 | All Cobra sterndrive models |
Technical Specs
- Construction
- Stainless braided and rubber coated
- Compatibility
- Volvo Penta SX-M, SX-C, SX-S; OMC Cobra sterndrive models
- Application Years
- 1987, 1988, 1989, 1990, 1991, 1992, 1993
- Replaces OEM
- Volvo Penta 3853825; OMC 0984645, 984645, 0911937, 911937
- Line Type
- Interchangeable braided and coated lines
What's in the Box
- 1× Hydraulic Trim Hose
The package contains all the parts shown in the picture.
Installation Notes
- Disconnect the negative battery terminal and relieve all hydraulic pressure from the trim system before beginning work.
- Locate the existing hydraulic trim hose running between the power trim pump and the sterndrive actuator.
- Use a flare-nut wrench to carefully loosen and remove both end fittings of the old hose to avoid damaging the connections.
- Inspect the fittings and ports for damage, corrosion, or debris; clean as needed before installing the new hose.
- Route the new hydraulic trim hose along the same path as the original, ensuring no sharp bends or contact with moving parts.
- Hand-thread both fittings first to confirm proper alignment, then tighten securely with a flare-nut wrench to manufacturer torque specifications.
- Refill the trim system with fresh hydraulic fluid and bleed air from the lines by cycling the trim up and down several times.
- Inspect all connections for leaks while the system is under pressure, then reconnect the battery and perform a final operational test.
Troubleshooting & FAQ
Will this hose fit my 1986 Volvo Penta SX model?
No. 1986 models used a different hydraulic trim hose with different end angles. This hose is designed exclusively for 1987–1993 models.
Can I use this on both stainless braided and rubber coated line systems?
Yes. The stainless braided and rubber coated lines are interchangeable, so this hose will work with either system configuration.
What are the signs that my hydraulic trim hose needs replacement?
Common symptoms include visible fluid leaks around hose fittings, slow or erratic trim operation, air bubbles in the hydraulic reservoir, or visible cracking and deterioration of the hose exterior.
Do I need to bleed the trim system after installation?
Yes. After replacing the hose, refill the hydraulic reservoir and cycle the trim up and down multiple times to purge air from the lines and ensure proper operation.
Is this hose compatible with all OMC Cobra engine displacements?
Yes. This hose fits all OMC Cobra sterndrive models from 1987–1993, including Ford 2.3L, GM 3.0L, 4.3L, 5.0L, 5.7L, and 5.8L engines.
What type of hydraulic fluid should I use when refilling?
Use only the hydraulic trim fluid specified by your engine manufacturer (typically Dexron ATF or equivalent). Consult your service manual for the exact fluid type and capacity.
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 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 QC.
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