3809981 Cylinder Piston | Genuine Volvo Penta Part

🔧 Product Description

The strength required to steer a boat with a hydraulic steering system is inversely proportional to the number of turns of the wheel lock-to-lock. Wheel turns are determined by the ratio between the cylinder volume, the pump displacement and the free movement of the steering device. A large cylinder volume with a small pump displacement gives more wheel turns; a small cylinder volume with a large pump displacement gives fewer. Fewer wheel turns means quicker steering response but more effort; more wheel turns means slower response but less effort. Three steering cylinders are available, all for rudder installations, with volumes of 116 cm3, 168 cm3 and 215 cm3. This is the 116 cm3 cylinder: 455 kg output force, 178 mm stroke and 53 kgm torque, with three-eighths inch (9.5 mm) fittings for high pressure flexible hose.

🚤 Compatibility

• Engine Family: D, VMM
• HP Range: 13-480 HP

Full model list at the end of this description.

⚙️ Key Features

• 116 cm3 volume
• 178 mm stroke
• 455 kg output force
• 53 kgm torque
• Three-eighths inch (9.5 mm) fittings for high pressure flexible hose
• For rudder installations
• 43 applications across D series engines and VMM installations
• 2.68 kg
• 3/8 inch (9.5 mm) fittings for high pressure flexible hose
• Volume cm3: 116
• Output force: 455 kg
• Stroke: 178 mm
• Torque: 53 kgm
• Fittings: 3/8" (9.5 mm) for high pressure flexible hose
• Fits: Volvo Penta hydraulic steering, rudder installations

🔌 Function

Converts helm pump pressure into the linear push that turns the rudder.

⚠️ Common Signs of Failure

• Steering losing assistance or wandering off course
• Fluid weeping at the rod seal or end glands
• Rod pitted, scored or corroded
• Spongy feel at the helm from air drawn in past a seal
• Uneven or stiff travel from side to side

🛠️ Service Notes

• The smallest of three cylinders: 3809982 is the 168 cm3 unit and 3809983 the 215 cm3 unit, so match volume, stroke and output force to your system rather than judging by size
• The cylinder volume and the helm pump displacement together decide how many turns the wheel takes lock to lock, so confirm both before ordering
• Hose 1140584 is the three-eighths inch high pressure nylon hose for these fittings, and 192618 the air bleed hose - bleed fully and check the level with the steering hard over each way
• Three cylinders are listed and volume, stroke and output force are what separate them: 3809982 is 168 cm3, 178 mm stroke, 682 kg output force; 3809983 is 215 cm3, 228 mm stroke, 682 kg output force
• Cylinder volume and helm pump displacement together set how many turns the wheel takes lock to lock
• High pressure flexible nylon hose 3/8 inch is 1140584, air bleed hose is 192618 and the hydraulic oil is 22618337

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D2-40, D2-40B, D2-40F, D2-55, D2-55B, D2-55C, D2-55D, D2-55E, D2-55F, D2-50F, D2-75, D2-75B, D2-75C, D2-75F, D2-60F
• Volvo Penta D1-30, D1-30B, D1-30F, D1-13, D1-13B, D1-13F, D1-20, D1-20B, D1-20F
• Volvo Penta D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300I-G
• Volvo Penta D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-145I-G
• Volvo Penta D11C1-A MP, D11C2-A MP
• Volvo Penta D13C2-B MP, D13C7-B MP
• Volvo Penta D8A1-A MP
• Volvo Penta VMM-A