3854247 Aftermarket Piston Repair Kit | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket OMC Cobra / Volvo Penta Trim Cylinder Seal Kit - Part Number: 3854247

A complete one-cylinder reseal kit for OMC Cobra/King Cobra and Volvo Penta SX/DP-SM hydraulic trim cylinders. It renews the piston, rod, cap and hose-connection seals disturbed during trim-ram overhaul and is suitable for the fore/aft and later longitudinal-rib cylinder designs listed below.

⚙️ Key Features

• One-cylinder seal package for the 3854247 / 985060 trim-ram family

• 1 × dust/scraper seal - supplied under kit reference 3854247 / 985060

• 1 × hydraulic pressure seal - supplied under kit reference 3854247 / 985060

• 1 × cap backup O-ring - supplied under kit reference 3854247 / 985060

• 1 × integrated bidirectional piston seal - supplied under kit reference 3854247 / 985060

• 1 × piston-to-rod O-ring - supplied under kit reference 3854247 / 985060

• Trim-line O-rings - supplied under kit reference 3854247 / 985060; early cylinders use four and later cylinders use two

• The individual seals are not assigned separate service numbers in the confirmed kit listings

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 0985060 / 985060 → Later BRP/OMC service replacement for 3854247

• 3854247 → Earlier Volvo Penta/OMC trim-cylinder seal-kit reference

• 778202 → Related BRP/OMC service reference

OEM / Related Numbers:

• 3854247

• 03854247

• 0985060

• 985060

• 778202

• RM3854247

• PM3854247

• FSM004

• 335-115

Aftermarket / Verified Equivalents:

• Recmar / Repower Marine: REC3854247 / RM3854247

• Poseidon Marine: PM3854247

• Five Star Marine: FSM004

• WSM: 335-115

🚤 Compatibility

Commonly used on:

• OMC Cobra and King Cobra hydraulic trim cylinders

• Volvo Penta SX-C, SX-R, SX-S, SX-MLT, SX-MACLT and DP-SM cylinders

Typically suits:

• Engine / drive models:

• OMC Cobra and King Cobra trim cylinders using 3854247 or 985060

• Volvo Penta cylinders 3850683, 3852414, 3857470 and 3857471

• Volvo Penta complete cylinder kit 3885196 when servicing one individual ram

• HP Range: Drive application; not engine-horsepower specific

• Engine / Drive Type: Hydraulic sterndrive trim-cylinder sealing system

• Year Range: OMC applications approximately 1987-1996; Volvo SX/DP-SM applications approximately 1994-2006

• Serial / Identification Range: One kit repairs one cylinder. Confirm the cylinder design and hose-entry arrangement; this kit does not suit later SX-A/DPS-A cylinder families.

🔌 Function

Seals hydraulic pressure inside the trim cylinder while preventing external oil leakage and water or contamination entry around the rod, cap, piston and hose connections.

Common signs of failure or replacement requirement:

• Hydraulic oil leaking around the rod or end cap

• Sterndrive slowly settles after trimming

• Uneven movement between the port and starboard cylinders

• Visible seal cracking, extrusion or hardening

• Air entry, foaming oil or repeated loss of trim pressure

📦 Condition

• Brand-new aftermarket replacement kit

• Supplied as new replacement components

• Supplied in suitable retail or equivalent packaging