3863190 Reservoir | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta reservoir from the Steering group, weighing 0.170 kg and listed for 10 applications across the D family. It supersedes part number 3885918. This is a steering system component, so treat any fault with it as safety-related.

🚤 Compatibility

Typically suits:

• Volvo Penta D6-300A-G
• Volvo Penta D6-340A-G
• Volvo Penta D6-380A-G
• Volvo Penta D6-400A-G
• Volvo Penta D6-440A-G
• Volvo Penta D4-150A-G
• Volvo Penta D4-230A-G
• Volvo Penta D4-270A-G
• Volvo Penta D4-320A-G
• Volvo Penta D4-300A-G

• Engine Family: D
• HP Range: 150-440 HP

⚙️ Key Features

• 0.170 kg
• 10 applications across the D family
• Supersedes 3885918
• Steering group component

🔌 Function

Holds the steering fluid reserve, allowing for expansion and letting air separate out of the returning fluid.

⚠️ Common Signs of Failure

• Fluid level dropping, with staining around the reservoir
• Steering going heavy, notchy or noisy as air is drawn in
• Body cracked or crazed, or the cap seal perished
• Fluid discoloured, foamy or containing debris
• Whine from the steering pump under load

🛠️ Service Notes

• Steering is a safety system — bleed the circuit fully and check for free lock-to-lock movement before the boat is used
• Fill with the fluid specified for the steering system and check the level with the helm centred
• Flush the circuit if the old fluid was dirty; debris carried over will damage the new components

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3863190 → Supersedes 3885918

📦 Condition

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